Thematische Bibliographien / In-house facilities management

Inhaltsverzeichnis

Zeitschriftenartikel
Dissertationen
Bücher
Buchteile
Konferenzberichte

Auswahl der wissenschaftlichen Literatur zum Thema „In-house facilities management“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "In-house facilities management" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Zeitschriftenartikel zum Thema "In-house facilities management"

Usher, Neil. „Outsource or in‐house facilities management: The pros and cons“. Journal of Facilities Management 2, Nr. 4 (Oktober 2003): 351–59. http://dx.doi.org/10.1108/14725960410808311.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Lok, Ka Leung, und David Baldry. „Facilities management outsourcing relationships in the higher education institutes“. Facilities 33, Nr. 13/14 (05.10.2015): 819–48. http://dx.doi.org/10.1108/f-05-2014-0043.

Der volle Inhalt der Quelle

Annotation:

Purpose – This paper aims to test the nine corollaries concerning the determinants of outsourcing relationship dimensions, strategic manoeuvres, clients’ and service providers’ evaluation regarding outsourcing category and outsourcing relationship types.The paper has the purpose of reviewing the concept of outsourcing in relation to FM, dealing with service providers’ performance and its effect on clients before providing a comprehensive discussion of outsourcing. Design/methodology/approach – A conceptual approach is adopted, suggesting that a study of outsourcing relationship between clients and service providers from these theoretical perspectives is used to develop corollaries about the relationships between the strategic manoeuvres identified and the different dimensions of outsourcing relationship. The corollaries are examined using non-parametric tests. Findings – The model of the facilities management (FM) outsourcing relationships presented in the paper shows performance of outsourcing services through evaluation of outsourcing categories on current and future FM contracts of clients and service providers. As a template of outsourcing relationships, the model is the context for predicting the important outsourcing categories to the future four FM outsourcing contracts, such as building maintenance, security, cleaning and catering. On prediction of those FM contracts, there is an inclination to the types of in-house and technical expertise on category of FM outsourcing relationship types from clients, whilst there is an equal inclination to the type of in-house outsourcing category from service providers. Originality/value – Management on outsourcing relationships between clients and service providers is now essential for effective outsourcing in FM. This paper provides an intriguing insight into how the effect of outsourcing relationships can be strategically implemented into the performance of service providers.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Perera, B. A. K. S., M. H. S. Ahamed, Raufdeen Rameezdeen, Nicholas Chileshe und M. Reza Hosseini. „Provision of facilities management services in Sri Lankan commercial organisations“. Facilities 34, Nr. 7/8 (03.05.2016): 394–412. http://dx.doi.org/10.1108/f-12-2014-0102.

Der volle Inhalt der Quelle

Annotation:

Purpose The purpose of this paper is to explore sourcing strategies for facilities management services using core-competency theory of outsourcing. The aim is to develop a screening framework for deciding the suitability of outsourcing versus in-house delivery for these services based on three levels of managerial functions prevalent in a typical commercial organization. Design/methodology/approach A questionnaire survey was administered for facilities managers in Sri Lanka to investigate the relative importance of these managerial functions for facilities management services and obtain their opinions on the best delivery mode. The managerial functions were derived from a literature review and verified using three semi-structured interviews prior to the questionnaire survey design. Findings The findings showed that facilities management services that are aligned to strategic functions are suitable for in-house delivery, while those that are aligned to tactical and operational functions for outsourcing. Research limitations/implications Further studies should be conducted and extended to other types of organizations beyond commercial ones. Secondly, the quantitative study employed a smaller sample (n = 40), and the survey items were based on the review of literature which was verified using a very small number of interviews (n = 3). Practical implications The proposed framework can be utilized when choosing the best facilities management approach for commercial organizations in developing countries such as Sri Lanka. Originality/value This study contributes to the body of knowledge on the subject of facilities management by exploring the context in Sri Lankan which has not previously been done.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Hashim, Ahmad Ezanee, Siti Aida Samikon, Mohamad Sufian Hasim und Mahyudin Mahmood. „Facilities Management AUDIT in Managing Healing Facilities in Public Health Care Built Environment: User Satisfaction Viewpoint“. Environment-Behaviour Proceedings Journal 1, Nr. 4 (08.08.2016): 83. http://dx.doi.org/10.21834/e-bpj.v1i4.376.

Der volle Inhalt der Quelle

Annotation:

Healthcare organizations have recognized the powerful impact of supply breakdowns and have exploited supply chain management for their quality program, especially regarding lean operations. This study aims to investigate strategic Facilities Management (FM) as a function to support the objectives of providing efficient services to healthcare sector through measuring user satisfaction focusing on public training hospital building. This research involved correlation analysis of the results obtained. The findings show that there is a strong significant relationship among the building performance criteria and the importance of POE guidelines in functional and technical performance criteria.© 2016. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.Keywords: Sustainable; Quality of Life; Facilities Management Audit; Public Healthcare; Built Environment

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Luck, Brian D., Jeremiah D. Davis, Joseph L. Purswell, Aaron S. Kiess und Steven J. Hoff. „Assessing Air Velocity Distribution in Three Sizes of Commercial Broiler Houses During Tunnel Ventilation“. Transactions of the ASABE 60, Nr. 4 (2017): 1313–23. http://dx.doi.org/10.13031/trans.12107.

Der volle Inhalt der Quelle

Annotation:

Abstract. Convective cooling is a critical management strategy for maintaining an environment that promotes production efficiency, thermal comfort, and animal well-being in commercial broiler houses. Variations in house size, design, and equipment configuration contribute greatly to the air velocity distribution within the facility. This study assessed total airflow, air velocity distribution, and quantified the floor area in three facilities experiencing insufficient air velocity for maintenance of production efficiency, thermal comfort, and animal well-being. Test facility 1 was an 18.3 × 170.7 m solid side-wall broiler house, test facility 2 was a 15.24 × 144.8 m solid side-wall broiler house, and test facility 3 was a 12.19 × 121.9 m curtain side-wall broiler house. Total airflow of each facility, measured with a Fan Assessment and Numeration System, was 512,730, 389,495, and 329,270 m3 h-1 for test facilities 1, 2, and 3, respectively. Air velocity distribution patterns were characterized in each house with a Scalable Environment Assessment System (SEAS) and spatial statistics. The air velocity distributions within the test facilities were variable, with notable maxima immediately downstream of the tunnel inlets, which serve as a well-defined vena contracta, and local minima near the leading end of the evaporative pads and the exhaust fans. Equipment within the facilities had an impact on the air velocity distribution by creating reduced cross-sectional areas that resulted in localized increases in air velocity. The percentage of total bird-level floor area in each facility experiencing air velocities below 1.5 m s-1 was 14.3%, 20.7%, and 10.0% for test facilities 1, 2, and 3, respectively. The effective design velocity (Ved) was calculated from total airflow using the measured building cross-sectional area. The Ved measured 2.97, 2.45, and 2.34 m s-1 for test facilities 1, 2, and 3, respectively. Mean cross-sectional air velocity (Vcs) was calculated from SEAS data and normalized using each facility’s Ved to account for differences in building size for comparison. Test facility 1, the largest of the three houses, generated substantially higher Vcs/Ved than test facilities 2 and 3. Test facilities 2 and 3 maintained a larger proportion of Vcs above Ved than test facility 1. Test facility 1 showed 26.5% of the total house length below Ved, while test facilities 2 and 3 had only 20.8% and 17.5%, respectively, of the total house length below Ved. The lower-velocity regions were due to the length of the evaporative cooling pad inlet and the use of tunnel doors, and the exhaust fan placement on the side-walls in test facility 1 created an additional pronounced low-velocity area. Placement of tunnel ventilation fans on the end-wall of the facility, rather than the side-wall, eliminated the low-velocity region at the exhaust end of the facility. Modifications to current practices for broiler production facility construction and evaporative cooling pad inlet installation would be required to minimize the low-velocity region at the inlet end of these facilities. Consideration of house width and physical arrangement of the air inlets, tunnel fans, and internal equipment are critical for improving the uniformity of air velocity in commercial broiler houses. Keywords: Air velocity, Anemometer, Broiler house, FANS, Tunnel ventilation.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Popelka, Jakub. „Providing Public Sport Facilities in Post-Socialist Times: The Case of the Czech Republic“. Central European Journal of Public Policy 9, Nr. 2 (01.12.2015): 190–99. http://dx.doi.org/10.1515/cejpp-2016-0018.

Der volle Inhalt der Quelle

Annotation:

AbstractThe paper aims to investigate current approaches to the management of public sport facilities by local governments. In the Czech Republic, local clubs traditionally played a key role in providing sport to the public. With decreasing participation in organized sport, a significant number of clubs have been forced to transfer their facilities to local governments and the sport position of local authorities has strengthened considerably in recent years. In consequence, there have been alterations in the management of public sport facilities. The findings of statistical analysis emphasize an increasing role of specialized organizations at the expense of in-house management or external provision (facilities hired out to sport clubs). Moreover, local population and type of facility were found to be the possible reasons for different approaches. In-house management is associated with smaller municipalities whereas most of their facilities have the character of public goods. In contrast, publicly funded organizations and municipal enterprises appear in municipalities with larger populations providing sport facilities of regional importance in the form of mixed goods. Finally, clubs, as representatives of external provision, mostly provide sport facilities primarily intended for their own purposes - club goods. In the context of recent works and contemporary trends in sport participation, the research findings indicate that different forms of management may have significant effects not only on efficiency of public budgets but also on conditions for sport at local level - especially on targeting those who would participate in sport if they had access to new opportunities or leisure programs.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Abbas, Naeem, und Abdulwahab M. Hafez. „Resistance to insect growth regulators and age-stage, two-sex life table in Musca domestica from different dairy facilities“. PLOS ONE 16, Nr. 4 (08.04.2021): e0248693. http://dx.doi.org/10.1371/journal.pone.0248693.

Der volle Inhalt der Quelle

Annotation:

Among the vectorial insect pests, the domestic house fly (Musca domestica L., Diptera: Muscidae) is a ubiquitous livestock pest with the ability to develop resistance and adapt to diverse climates. Successful management of the house fly in various locations requires information about its resistance development and life table features. The status of insect growth regulators resistance and life table features on the basis of age, stage, and two sexes of the house fly from five different geographical locations of Riyadh, Saudi Arabia: Dirab, Al-Masanie, Al-Washlah, Al-Uraija and Al-Muzahmiya were therefore investigated. The range of resistance levels were 3.77–8.03-fold for methoxyfenozide, 5.50–29.75 for pyriproxyfen, 0.59–2.91-fold for cyromazine, 9.33–28.67-fold for diflubenzuron, and 1.63–8.25-fold for triflumuron in five populations of house fly compared with the susceptible strain. Analysis of life history parameters—such as survival rate, larval duration, pupal duration, pre-female duration, pre-male duration, adult and total pre-oviposition periods, longevity of male, oviposition period, female ratio, and fecundity female-1—revealed significant variations among the field populations. Additionally, demographic features—including the generation time, the finite and intrinsic rates of increase, doubling time, and net reproductive rate—varied significantly among the field populations. These results will be helpful in planning the management of the house fly in geographically isolated dairies in Saudi Arabia.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Abdul Latif, Saripah, und Tengku Amira Yasmin Tengku Iskandar. „Antecedents of Waste Management in the Oil and gas Industry“. Environment-Behaviour Proceedings Journal 4, Nr. 10 (01.03.2019): 135. http://dx.doi.org/10.21834/e-bpj.v4i10.1634.

Der volle Inhalt der Quelle

Annotation:

Improper waste management during operational activities in the oil and gas industry brings adverse environmental impacts. Consequently, the quality of life of the population decreases. This study aims to investigate the antecedents for waste management in the oil and gas industry. Policy governance, facilities, technology and environmental education, are proposed to be affecting the waste management in the industry. Primary data was collected via an online survey among 98 oil and gas players in Malaysia. Policy governance, facilities and environmental education were found to be the antecedents, while technology is proven to be non-significance.Keywords: Waste management; Policy governance; Facilities; Environmental educationeISSN: 2398-4287 © 2019. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.DOI: https://doi.org/10.21834/e-bpj.v4i10.1634

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Abu Talib, Alyaa Afifah, Nor Rima Muhamad Ariff, Mohd Hafiz Hanafiah und Mohamad Sufian Hasim. „Positioning Strategic Sustainable Facilities Management (SFM) for Hotel Industry in Malaysia“. Asian Journal of Quality of Life 4, Nr. 17 (15.01.2020): 49–62. http://dx.doi.org/10.21834/ajqol.v4i17.200.

Der volle Inhalt der Quelle

Annotation:

Sustainability issues in the hotel industry are significantly distressing matter. It has been expressed as a constituent interest to a negative impact on the environment. However, the sustainability management concept is yet to be established by the Malaysian hotel industry. The aim is to study Sustainable Facilities Management (SFM) practices in the hotel industry. This conceptual paper encompasses on evolution theory of SFM. Meta-analysis was conducted focusing on developing trends of SFM globally. The findings revealed that 9 out of 15 sustainable initiatives have been commonly practised. These initiatives are essential to gain holistic SFM practices in the hotel industry. Keywords: Sustainable; Sustainability Facilities Management (SFM); Hotel. 2398-4279 © 2019 The Authors. Published for AMER ABRA CE-Bs by E-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ajqol.v4i17.200

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Hasim, Mohamad Sufian, Ahmad Sharim Abdullah, Abdul Rauf Abdul Rasam und Hafiszah Ismail. „Sustainable Facilities Management: Interviews with FM practitioners for Malaysian universities“. Asian Journal of Behavioural Studies 5, Nr. 18 (11.04.2020): 51. http://dx.doi.org/10.21834/ajbes.v5i18.188.

Der volle Inhalt der Quelle

Annotation:

Sustainability in Facilities Management (FM) is a new approach in managing buildings and may be influenced by practitioners involved within an organisation.Sustainability inthe organisation has a significant impact on organisational success in increasing the firm’s profitability,reducing cost and enhancingsafety and health. This paper aims to evaluate the level of sustainability implementation in the university organisations with the objectives to measure an understanding concerning sustainable FM among practitioners, and to determine the sustainability dimension which mostly considered. Six-teen interviews were conducted, and the results found that the majority of participants were not familiar to the sustainability concept and the environmental dimension was higher priorities in FM implementation.Keywords: Sustainable Facilities Management; Malaysian Universities; Sustainable Organisation; IntervieweISSN 2398-4295 ©2020 The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.DOI: http://dx.doi.org/10.21834/ajbes.v5i18.188

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Mehr Quellen

Dissertationen zum Thema "In-house facilities management"

Owen, David Derek. „Contracting-out in a facilities management context : an investigation of the advantages and disadvantages of contracting-out as experienced by user organisations, and the influence such factors exert in determining whether facilities management services are resourced in-house or externally“. Thesis, University of Salford, 1994. http://usir.salford.ac.uk/14781/.

Der volle Inhalt der Quelle

Annotation:

The field of study for this research project is a recently established and rapidly evolving business concept, Facilities Management (FM). The focal theory for this project concerns the effectiveness of a tactic increasingly adopted by organisations as part of their FM strategy, namely contracting-out. This work places significant emphasis on the 'design' (i.e. the planning ) of the research project, in order to maximise the rigour of the study. In particular, a distinction is drawn between the design of the overall project and the design of the data collection strategy. The latter employs the multi-method techniques of •cas'e study and research review. The value of incorporating a looping or iteration element into the design in order to permit a dynamic and flexible approach is developed in some detail. The aim of the research project is to determine:- the advantages and disadvantages of contracting-out as they affect the individual organisations under investigation; the extent such factors play in determining whether the organisations adopt contracting-out; the potential for generalising the results across the case studies; and whether broader generalisations can be attempted. The following hypothesis for the study is developed based on the findings of a review of focal theory: 'The potential advantages to a User organisation of contracting-out discrete aspects or bundles of FM Services are likely to outweigh the potential disadvantages.' A matrix of the advantages and disadvantages of contracting-out is developed by conducting a 'research review'. The findings are ranked according to frequency of occurrence based on weighted averages. Six case studies are conducted as a means of collecting primary data. The data is systematically subjected to analytical methods, including testing against both the hypothesis and the rankings of the Research Review. Finally a cross-case analysis is undertaken. The findings progressively reached by this researcher have been tested out against knowledgeable audiences in two ways, viz: by presenting conference papers and lectures; and by regular reference back to a sounding board of key informants. The conclusions reached include: • that the proposition of the hypothesis is not generalisable; • that potential advantages and disadvantages of contracting-out not only vary between organisations, but in the way they influence the delivery of different FM services within a given organisation; • that factors other than these advantages and disadvantages influence Users' contracting-out decision-making.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Bücher zum Thema "In-house facilities management"

Campbell, Donald B. In-house vs. contracted work forces: A comparison of NPWC Pensacola and NPWC Jacksonville. Springfield, Va: Available from National Technical Information Service, 1996.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Office, General Accounting. Health care: Initiatives in hospital risk management : report to the Honorable Ron Wyden, House of Representatives. Washington, D.C: The Office, 1989.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

New Jersey. Legislature. General Assembly. Solid Waste Management Committee. Public hearing before Assembly Solid Waste Management Committee: Assembly bill no. 3107 (2R) (authorizes $135 million in general obligation bonds for construction of resource recovery facilities and environmentally sound sanitary landfill facilities) : November 28, 1988, Room 373, State House Annex, Trenton, New Jersey. Trenton, N.J: The Committee, 1988.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Cases of child neglect and abuse at private residential treatment facilities: Hearing before the Committee on Education and Labor, U.S. House of Representatives, One Hundred Tenth Congress, first session, hearing held in Washington, DC, October 10, 2007. Washington: U.S. G.P.O., 2008.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Warren, David R. Defense depot maintenance: Uncertainties and challenges DOD faces in restructuring its depot maintenance program : statement of David R. Warren, Director, Defense Management Issues, National Security and International Affairs Division, before the Subcommittee on Military Readiness, Committee on National Security, House of Representatives. Washington, D.C: The Office, 1997.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Office, General Accounting. State Department: Controlling access to headquarters facilities : briefing report to the Chairman, Legislation and National Security Subcommittee, Committee on Government Operations, House of Representatives. Washington, D.C: The Office, 1988.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Committee, New Jersey Legislature General Assembly Solid Waste Management. Public hearing before Assembly Solid Waste Management Committee: Assembly resolution no. 111 (directs Assembly Solid Waste Management Committee to conduct an inquiry into the manner in which the rates were set at the state-sanctioned transfer stations located in northern New Jersey) : May 8, 1989, Room 373, State House Annex, Trenton, New Jersey. Trenton, N.J. (State House Annex, CN 068, Trenton 08625): The Committee, 1989.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

United States. Government Accountability Office. Defense infrastructure: Issues need to be addressed in managing and funding base operations and facilities support : report to the Subcommittee on Readiness, Committee on Armed Services, House of Representatives. [Washington, D.C.]: U.S. Government Accountability Office, 2005.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Office, General Accounting. Defense logistics: DOD addressing concerns about its fuel depot in Norwalk, California : report to the Chairwoman, Subcommittee on Military Installations and Facilities, Committee on Armed Services, House of Representatives. Washington, D.C: The Office, 1992.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Holman, Barry W. Defense infrastructure: Challenges facing DOD in implementing reform initiatives : statement of Barry W. Holman, Associate Director, Defense Management Issues, National Security and International Affairs Division, before the Subcommittee on Military Installations and Facilities, Committee on National Security, House of Representatives. Washington, D.C: The Office, 1998.

Den vollen Inhalt der Quelle finden

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Mehr Quellen

Buchteile zum Thema "In-house facilities management"

Golwalkar, Kiran R. „Tools and Facilities for In-House Maintenance“. In Integrated Maintenance and Energy Management in the Chemical Industries, 197–207. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32526-8_8.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Khanna, Navneet, und Prassan Shah. „Energy Efficiency Analysis for Machining Magnesium Metal Matrix Composites Using In-House Developed Hybrid Machining Facilities“. In Sustainable Production, Life Cycle Engineering and Management, 131–37. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44248-4_13.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Brasher, Sally Mayall. „Jurisdictional disputes“. In Hospitals and Charity. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9781526119285.003.0006.

Der volle Inhalt der Quelle

Annotation:

Chapter five examines the process of greater secularization in the management of the facilities and attempts by the church officials to reassert control and authority over these groups in the late fourteenth and early fifteenth centuries. The endemic conflict between and within cities, and with the institutional church and imperial powers, resulted in a politicization of all civic organizations, but in particular of the administration of the hospital. Institutional mismanagement and even corruption resulted as the pious impulse was politicized. Efforts by the ecclesiastical authorities to combat this degeneration were frustrated by their own inability keep a clean house. At the same time, civic authorities who, increasingly needed the social services offered by the hospital and hoped to profit from the income of the facilities, worked to appropriate control and authority over the institutions.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Braga, José Luís, und Marta Dionísio. „An Application of the “Amplifying Casual Looping” Model to Manor House Management“. In Rural Entrepreneurship and Innovation in the Digital Era, 103–25. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4942-1.ch006.

Der volle Inhalt der Quelle

Annotation:

This chapter attempts to explain the main strategies adopted by the hosts of manor houses when they engage in lodging activities. The present research draws on 53 non-structured interviews made to owners/hosts of housing tourism facilities (HT). The methodological approach used is classic grounded theory (CGT). CGT encompasses a set of strict research procedures leading to concepts which explain what is going on in the HT substantive area. Within this context, the authors reveal a theoretical code, designated as ‘amplifying casual looping', which the authors believe has the merit of effectively conceptualizing the substantive codes generated by us. This causal model broadens in both directions: positive (virtuous circle) and negative (vicious circle).

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Moneo Lain, Antonio. „Facilitating Organizational Change With Knowledge Management“. In Handbook of Research on Organizational Culture Strategies for Effective Knowledge Management and Performance, 194–216. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7422-5.ch011.

Der volle Inhalt der Quelle

Annotation:

This chapter will describe methodologies and strategies that can help knowledge management, business development, and other change-making professionals drive organizational change leveraging a knowledge management approach. It describes an end-to-end methodology to drive change with a combination of knowledge management methods. The methodology is structured in five steps: setting up transformation teams, discovering in-house knowledge, creating internal capabilities, facilitating experimental execution, and impact evaluation. Issues discussed in the literature review include the nature of organizational change, why organizations change and how, the need for innovation, why organizations resist change, and how knowledge management facilitates organizational change.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Kakhki, Mohammad Daneshvar, Hamid Nemati und Farhad Hassanzadeh. „A Virtual Supply Chain System for Improved Information Sharing and Decision Making“. In Supply Chain and Logistics Management, 707–25. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0945-6.ch033.

Der volle Inhalt der Quelle

Annotation:

Integrated supply chain information systems (ISCIS) face various barriers including lack of alignment between IT and business model, security and privacy concerns, behavioral and cultural issues, and heterogeneous software applications. This paper develops an architecture for ISCIS and validate it by interviewing experts. The proposed architecture is an intermediary to integrate in-house information systems as well as cloud-based systems across distributed heterogeneous supply chain networks. The developed ISCIS architecture works in three layers of data, processes, and knowledge and facilitates the alignment of information systems and decision making with business.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Algarín, Alberto De la Rosa, Steven A. Demurjian, Timoteus B. Ziminski, Yaira K. Rivera Sánchez und Robert Kuykendall. „Securing XML with Role-Based Access Control“. In E-Health and Telemedicine, 487–522. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-8756-1.ch025.

Der volle Inhalt der Quelle

Annotation:

Today's applications are often constructed by bringing together functionality from multiple systems that utilize varied technologies (e.g. application programming interfaces, Web services, cloud computing, data mining) and alternative standards (e.g. XML, RDF, OWL, JSON, etc.) for communication. Most such applications achieve interoperability via the eXtensible Markup Language (XML), the de facto document standard for information exchange in domains such as library repositories, collaborative software development, health informatics, etc. The use of a common data format facilitates exchange and interoperability across heterogeneous systems, but challenges in the aspect of security arise (e.g. sharing policies, ownership, permissions, etc.). In such situations, one key security challenge is to integrate the local security (existing systems) into a global solution for the application being constructed and deployed. In this chapter, the authors present a Role-Based Access Control (RBAC) security framework for XML, which utilizes extensions to the Unified Modeling Language (UML) to generate eXtensible Access Control Markup Language (XACML) policies that target XML schemas and instances for any application, and provides both the separation and reconciliation of local and global security policies across systems. To demonstrate the framework, they provide a case study in health care, using the XML standards Health Level Seven's (HL7) Clinical Document Architecture (CDA) and the Continuity of Care Record (CCR). These standards are utilized for the transportation of private and identifiable information between stakeholders (e.g. a hospital with an electronic health record, a clinic's electronic health record, a pharmacy system, etc.), requiring not only a high level of security but also compliance to legal entities. For this reason, it is not only necessary to secure private information, but for its application to be flexible enough so that updating security policies that affect millions of documents does not incur a large monetary or computational cost; such privacy could similarly involve large banks and credit card companies that have similar information to protect to deter identity theft. The authors demonstrate the security framework with two in-house developed applications: a mobile medication management application and a medication reconciliation application. They also detail future trends that present even more challenges in providing security at global and local levels for platforms such as Microsoft HealthVault, Harvard SMART, Open mHealth, and open electronic health record systems. These platforms utilize XML, equivalent information exchange document standards (e.g., JSON), or semantically augmented structures (e.g., RDF and OWL). Even though the primary use of these platforms is in healthcare, they present a clear picture of how diverse the information exchange process can be. As a result, they represent challenges that are domain independent, thus becoming concrete examples of future trends and issues that require a robust approach towards security.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Algarín, Alberto De la Rosa, Steven A. Demurjian, Timoteus B. Ziminski, Yaira K. Rivera Sánchez und Robert Kuykendall. „Securing XML with Role-Based Access Control“. In Architectures and Protocols for Secure Information Technology Infrastructures, 334–65. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4514-1.ch013.

Der volle Inhalt der Quelle

Annotation:

Today’s applications are often constructed by bringing together functionality from multiple systems that utilize varied technologies (e.g. application programming interfaces, Web services, cloud computing, data mining) and alternative standards (e.g. XML, RDF, OWL, JSON, etc.) for communication. Most such applications achieve interoperability via the eXtensible Markup Language (XML), the de facto document standard for information exchange in domains such as library repositories, collaborative software development, health informatics, etc. The use of a common data format facilitates exchange and interoperability across heterogeneous systems, but challenges in the aspect of security arise (e.g. sharing policies, ownership, permissions, etc.). In such situations, one key security challenge is to integrate the local security (existing systems) into a global solution for the application being constructed and deployed. In this chapter, the authors present a Role-Based Access Control (RBAC) security framework for XML, which utilizes extensions to the Unified Modeling Language (UML) to generate eXtensible Access Control Markup Language (XACML) policies that target XML schemas and instances for any application, and provides both the separation and reconciliation of local and global security policies across systems. To demonstrate the framework, they provide a case study in health care, using the XML standards Health Level Seven’s (HL7) Clinical Document Architecture (CDA) and the Continuity of Care Record (CCR). These standards are utilized for the transportation of private and identifiable information between stakeholders (e.g. a hospital with an electronic health record, a clinic’s electronic health record, a pharmacy system, etc.), requiring not only a high level of security but also compliance to legal entities. For this reason, it is not only necessary to secure private information, but for its application to be flexible enough so that updating security policies that affect millions of documents does not incur a large monetary or computational cost; such privacy could similarly involve large banks and credit card companies that have similar information to protect to deter identity theft. The authors demonstrate the security framework with two in-house developed applications: a mobile medication management application and a medication reconciliation application. They also detail future trends that present even more challenges in providing security at global and local levels for platforms such as Microsoft HealthVault, Harvard SMART, Open mHealth, and open electronic health record systems. These platforms utilize XML, equivalent information exchange document standards (e.g., JSON), or semantically augmented structures (e.g., RDF and OWL). Even though the primary use of these platforms is in healthcare, they present a clear picture of how diverse the information exchange process can be. As a result, they represent challenges that are domain independent, thus becoming concrete examples of future trends and issues that require a robust approach towards security.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

„(22) NILSSON, C. (1982). Dust investigations in pig houses. Swedish Uni versity of Agricultural Sciences, Department of Farm Buildings, Di-vison of Farm Building Constructions, Lund. Rapport 25, pp 93. (23) HILLIGER, H.G. (1966). Gravimetrische Staubmessungen in Stallen. Zbl. Vet. Med. B, 13, 698-708. (24) PALOHEIMO, L.T1969). Weender Analyse. In: W. LEMKEIT, K. BREIREM and E. GRASSMANN (Hrsg.). Handbuch der Tierernahrung, Bd. 1, S.164-171, Verlag Parey, Berlin, Hamburg. (25) HELEN, M. (1984). Einige Ursachen fUr die Variationen der Staubkon-zentration im Mastschweinestal1. In: Symposium der Internationalen Gesellschaft fUr Tierhygiene, Hrsg.: Deutsche Veterinarmedizinische GeselIschaft, 28-30. (26) NAKAUE, H.S., J.K. KOELLIKER, D.R. BUHLER and G.H. ARSCOTT (1981). Distribution of inorganic elements in poultry house dust. Poultry Sci. 60, 1386-1391. (27) CERMAK, J.P. and P.A. ROSS (1978). Airborne dust concentrations as sociated with animal housing tasks. Farm Buildg. Progr. 5J_, 11-15. (28) BUNDY, D.S. and E.T. HAZEN (1975). Dust levels in swine confinement systems associated with different feeding methods. Trans. Amer. Soc. Agric. Eng. J8, 137-139. (29) SCHAEFER, J., J.M.H. BEMELMANS and M.C. Ten NOEVER DE BRAUW (1974). Onderzoek naar de voor de stank van varkensmesterijen verantwoordi-lijke componenten. Landbouwkund. Tijdschr., pt 86-9, 228-232. (30) HAMMOND, E.G., C. FEDLER and G. JUNK (1979). Identification of dust-borne odors in swine confinement facilities. Trans. ASAE 22, No. 5, 1186-1189 & 1192. (31) TRAVIS, T.A. and L.F. ELLIOTT (1977). Quantitation of indole and scatole in a housed swine unit. J. Environ. Qual. 6 (34) HARTUNG, J. (1985). Gas chromatographic investigations of swine house dust on odorous compounds. Environmental Technology Letters 6, 21-30. (35) SPOELSTRA, S.F. (1978). Microbial aspects of the formation of malo dorous compounds in anaerobically stored piggery wastes. Wageningen, Landbouwhogeschool, Diss., pp. 91. (36) SCHAEFER, J. (1977). Sampling, characterization and analysis of mal-odours. Agric. Environm. 3, 121-127. (37) HARTUNG, J. and E. R0KICK.T (1984). Zum Vorkommen phenol art iger Ver-bindungen im Staub von Schweine- und HUhnerstall. Zbl. Bakt. Hyg., I. Abt. Orig. B, J_79, 431-439. (38) LOGTENBERG, M.Th. and B. STORK (1976). Het ontwikkelen van meetme-thoden voor het bepalen van de stank van ventilatielucht van mest-varkensstallen.Rapport de Centraal Technisch Instituut TNO, Zeist/ Holland. Ref.no: 76-06 054, Dossier: 01-4-40130. (39) WILLSON, G.B. (1971). Control of odours from poultry houses. ASAE Symp. Livestock Waste Management, Columbus/Ohio, 19.-22.4.1971. (40) HAMMOND, E.G., C. FEDLER and R.J. SMITH (1981). Analysis of particle -borne swine house odours. Agric. and Environment 6, 395-399. (41) OWEN, J.E. (1982b). Dust - Filtration solutions an? their cost. Farm Building Progress 68, 19-23.“ In Odour Prevention and Control of Organic Sludge and Livestock Farming, 340. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-134.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Konferenzberichte zum Thema "In-house facilities management"

Traeger, David, John Nelson und Robert Zorbaugh. „Carbon and Green House Gas Evaluation of the Lancaster County Waste Management System“. In 19th Annual North American Waste-to-Energy Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/nawtec19-5452.

Der volle Inhalt der Quelle

Annotation:

HDR partnered with the Lancaster County Solid Waste Management Authority (Authority) to use the Carbon Assessment Planning Tool (CAPT) to evaluate GHG emissions in their solid waste system. The Authority owns three primary facilities, which comprise the Authority’s solid waste processing and disposal system (the System). The primary facilities in the System are the Transfer Station (TS), the Frey Farm Landfill (FFLF) and the Lancaster County Resource Recovery Facility (RRF). The Authority has recently added wind turbines to its energy portfolio and is considering other changes within its system. The model will be used to evaluate the net effect of the changing system characteristics on the Green House Gas emissions from the system. Reduction in the waste landfilled, changes in Landfill Gas production and increases in energy production will all be evaluated. The paper will review the model assumptions and parameters and will discuss system characteristics. The paper will also discuss a methodology for monetization of additional “green benefits” associated with the GHG emissions reductions through the sale of emission offsets.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Meng, X. Z., Z. Lu, L. J. Su, X. L. Luo, L. C. Wei, L. W. Jin und J. Chai. „Numerical and Experimental Investigation on Thermal Management of an Outdoor Battery Cabinet“. In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38229.

Der volle Inhalt der Quelle

Annotation:

Many forms of electronic equipment, of necessity, must be located in an outdoor environment. Such equipment in typical form may be battery packs or telecom-equipment. It is essential that these facilities be protected from a wide range of ambient temperatures and solar radiation. To this end, cabinet enclosures with proper thermal management have been developed to house such electronic equipment in a highly weather tight manner, especially for battery cabinet. Often the batteries are of a lead-acid construction which is known to be adversely affected by temperature extremes in terms of battery performance and life. Therefore, it is important to maintain the cabinet temperature ideally for ensuring battery stability and extending battery lifespan. In this paper, physical and mathematical models are established to investigate the flow field and temperature distribution inside an outdoor cabinet, which contains 24 batteries with two configurations of two-layer and six-layer respectively. The cabinet walls are maintained at a constant temperature by a refrigeration system and the ambient temperature is up to 50 °C according to the practical situation. The flow field and temperature distribution are analyzed with and without consideration of solar radiation. An experimental facility is then developed to measure the battery surface temperatures and to validate the numerical simulation. The differences between the CFD and experimental results are within 2%, which confirms the CFD model.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Lewis, Donald Wayne. „Developing a Concept for a National Used Fuel Interim Storage Facility in the United States“. In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96374.

Der volle Inhalt der Quelle

Annotation:

In the United States (U.S.) the nuclear waste issue has plagued the nuclear industry for decades. Originally, spent fuel was to be reprocessed but with the threat of nuclear proliferation, spent fuel reprocessing has been eliminated, at least for now. In 1983, the Nuclear Waste Policy Act of 1982 [1] was established, authorizing development of one or more spent fuel and high-level nuclear waste geological repositories and a consolidated national storage facility, called a “Monitored Retrievable Storage” facility, that could store the spent nuclear fuel until it could be placed into the geological repository. Plans were under way to build a geological repository, Yucca Mountain, but with the decision by President Obama to terminate the development of Yucca Mountain, a consolidated national storage facility that can store spent fuel for an interim period until a new repository is established has become very important. Since reactor sites have not been able to wait for the government to come up with a storage or disposal location, spent fuel remains in wet or dry storage at each nuclear plant. The purpose of this paper is to present a concept developed to address the DOE’s goals stated above. This concept was developed over the past few months by collaboration between the DOE and industry experts that have experience in designing spent nuclear fuel facilities. The paper examines the current spent fuel storage conditions at shutdown reactor sites, operating reactor sites, and the type of storage systems (transportable versus non-transportable, welded or bolted). The concept lays out the basis for a pilot storage facility to house spent fuel from shutdown reactor sites and then how the pilot facility can be enlarged to a larger full scale consolidated interim storage facility.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

King, Ronald (Ron), und G. Christopher P. Crall. „Florida Citrus Processing Facility Takes Leadership Role in Conducting a Facility Wide Insulation Energy Assessment“. In ASME 2009 Citrus Engineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/cec2009-5506.

Der volle Inhalt der Quelle

Annotation:

After attending a National Insulation Association (NIA) presentation on Insulation, The Forgotten Technology at ASME’s 2007 Citrus Engineering Conference, a major citrus processing facility in central Florida decided to examine the condition of their insulation systems and determine the potential energy savings that could be achieved by replacing or repairing their existing insulation. Facility management had previously examined abbreviated energy assessments for above and below ambient systems but had not commissioned an extensive below ambient assessment. Due to the age, complexity, and recent weather history of the facility (i.e. hurricanes), management wanted to examine the condition of the thermal insulation systems and any effect its condition may have on the refrigerant piping and overall system operating costs. The assessment process was more complex than originally anticipated and yielded a wealth of meaningful information. The facility covers about 50 acres and consists of a variety of production, warehousing, and shipping/receiving facilities. It is estimated that the facility processes roughly one billion pounds of oranges and grapefruits each year into juice and juice products. Refrigeration for the site is provided by a large and complex ammonia refrigeration system. A total of eight “engine rooms” house electric driven compressors and associated vessels and equipment. Installed capacity is roughly 3,000 tons of refrigeration with an estimated energy cost on the order of $2 million per year. The ammonia refrigerant is distributed throughout the site via a complex and interconnected refrigerant piping system. The total refrigerant charge in the system is roughly 300,000 lbs of ammonia. Paper published with permission.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Ibrahim, Mahmoud, Siddharth Bhopte, Bahgat Sammakia, Bruce Murray, Madhusudan Iyengar und Roger Schmidt. „Effect of Thermal Characteristics of Electronic Enclosures on Dynamic Data Center Performance“. In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40914.

Der volle Inhalt der Quelle

Annotation:

Data centers are the facilities that house large number of computer servers that dissipate high power. Considering the dynamics of the data centers, their efficient thermal management is a big challenge that needs to be addressed. Computational analysis using a CFD code is very useful technique that helps the engineer to understand and solve the data center cooling problem. Several ongoing numerical modeling research efforts assume the computer room air conditioning (CRAC) units as fixed flow devices with constant temperature boundary condition. In reality, CRAC supply temperature is governed by the thermal characteristic curve, as specified by vendor. In this paper, study is presented by incorporating the CRAC thermal characteristic curve in the numerical model. Case studies are presented to show how the segregated high and low powered clusters in a data center may affect the supply temperatures from the CRAC in their vicinity. Another concern that is crucial in analyzing data centers performance precisely is the effect of buoyancy and thermal mass on the facility environment. In some cases, the effect of thermal mass and buoyancy may cause unexpected behaviors such as temperature overshoot or rapid variations in temperature. Non-dimensional parameters are used to demonstrate the effects of thermal mass and buoyancy.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Van Brunt, Michael, und Brian Bahor. „Potential for Energy-From-Waste Carbon Offsets in North America“. In 18th Annual North American Waste-to-Energy Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/nawtec18-3540.

Der volle Inhalt der Quelle

Annotation:

A carbon offset program is likely to be part of any future federal cap-and-trade program and is included in both the U.S. House of Representatives passed American Clean Energy and Security Act of 2009 and the Kerry-Boxer Senate draft greenhouse gas legislation. Internationally, Energy-from-Waste (EfW) facilities in emerging economies are eligible for carbon offset credits under the Clean Development Mechanism of the Kyoto Protocol. These carbon offset credits can be purchased by developed countries, such as those in Western Europe, to help comply with their obligations under the Kyoto Protocol. Although a similar mandatory market does not yet exist in the United States, there is a growing voluntary market in carbon offsets and a set of standards designed to provide some order to this market. One of the key players in the voluntary market is the Voluntary Carbon Standard (VCS). Project types, such as EfW, that are eligible for credits under the Clean Development Mechanism are also eligible to generate voluntary carbon credits under the VCS. This paper reviews the current methodology for calculating offsets from EfW projects. The current methodology is very conservative, severely restricts the accounting for avoided landfill methane, and significantly underestimates greenhouse gas savings relative to life cycle assessments performed on waste management practices. The current methodology for offsets is compared and contrasted with a more realistic methodology more in line with life cycle assessment calculations. A review of the potential for EfW offsets under evolving state and federal programs and precedents for offsets generated based on avoided landfill methane is also completed.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Gondipalli, Srujan, Bahgat Sammakia, Siddarth Bhopte, Roger Schmidt, Madhusudan K. Iyengar und Bruce Murray. „Optimization of Cold Aisle Isolation Designs for a Data Center With Roofs and Doors Using Slits“. In ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89203.

Der volle Inhalt der Quelle

Annotation:

Data centers are facilities that house large numbers of computer servers that typically dissipate high power. With the rapid increase in the heat flux of such systems, their thermal management represents an economic and environmental challenge that needs to be addressed [2]. Considering the trends of increasing heat loads and heat fluxes, the focus for users is in providing adequate airflow through the equipment at a temperature that meets the manufacturers’ requirements. Data centers house IT equipment in racks typically arranged in rows which face one another. Alternating cold and hot aisles are formed and this pattern is repeated across the data center. This approach helps to separate cold and hot air streams; but this does not always suffice in the separation of cold and hot air. The mixing of hot rack exhaust air with cold supply air, short-circuiting of cold air to the coolers and the recirculation of hot air to racks’ inlet are the common phenomena that lead to thermal inefficiencies in a typical data center. Typically in a raised floor data center, increase in rack inlet air temperature is seen because of the infiltration of hot air into the cold aisle from the top (ceiling of the cold aisle) and from edges or sides. Infiltration can be reduced to a certain extent if cold aisles are isolated from ceiling and hot aisles using partially or fully closed doors with slits to manage the airflow. The key is to redistribute the cold air entering the cold aisle along with any infiltration such that the overall average temperature at the rack inlets is below a predefined level. In this paper, different designs were generated with the criteria of achieving no hotspots, a relatively low pressure drop across the servers and low velocity of the air in the cold aisle based on an actual data center model. Several designs are proposed that meet all of the defined constraints.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Arnulfi, Gianmario L., Carlo Cravero und Martino Marini. „Analysis of the Operating Mode Influence Onto Energy Consumption of a Natural Gas Storage Plant“. In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68990.

Der volle Inhalt der Quelle

Annotation:

Natural gas carrying from production sites to users’ facilities is made by marine shipping in liquid phase or by terrestrial pumping in gaseous phase through long pipelines. In the latter case several storage stations are distributed along the pipeline nets to move the natural gas from its deposits to users’ terminals. Storage stations are set up to compensate seasonal fluctuations of the consumer demand versus methane supply, storing the gas in various kinds of reservoirs. In most of such plants centrifugal compressors are used, where the energy and the time that a complete charge takes are affected by the operation scheduling of the compressor from the minimum to the maximum storage levels. While the pressure in the reservoir enforces the instant operation pressure, the flow rate is limited within a quite wide range. Here an in-house code, based on the lumped parameter approach and a quasi-steady dynamics, is applied to a complete charge. The natural gas behavior is modeled by the pseudo-ideal gas in order to get a fair accuracy keeping the usual gas dynamics equations. The compression path has been parameterized and a multi objective optimization, embedding the simulation code, has been implemented to find the most suitable management of the compression station for the minimization of time and energy. The most significant paths are analyzed to pick out the effects of the compression strategy.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Bhopte, Siddharth, Madhusudan K. Iyengar, Bahgat Sammakia, Roger Schmidt und Dereje Agonafer. „Numerical Modeling of Data Center Clusters: Impact of Model Complexity“. In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13494.

Der volle Inhalt der Quelle

Annotation:

Data centers are facilities that house large numbers of computer servers that dissipate high power. With the rapid increase in the heat flux of such systems, their thermal management has become a challenge that needs to be addressed. Computational analyses using a CFD code is a very useful technique that helps the engineer to understand and solve the data center cooling problem. In this paper the state of the art of numerical modeling of data center is discussed. Representative systems are modeled using the two most prominent approaches. Variation in results with the addition of modeling details is presented. The effect of under floor parameters such as the conditioned chilled air supply flow rate, the under floor plenum depth, and the tile opening flow resistance, is discussed. Total flow rate delivered by the Computer Room Air Conditioning (CRAC) unit depends on blower and system characteristic curves, as specified by the vendor. Impact of plenum depth and tile resistance on total CRAC flow rate is discussed. Under floor blockages such as cables, pipes, and random materials, impede the flow of the cold air stream and yield unpredictable air flow patterns. Currently, models with idealized plenums are used for simulation of data centers. The effect of including blockages in CFD analyses is discussed. A novel approach that defines safe and critical paths under plenum for routing the blockages is presented.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Rabelo, Alexandre S., Antonio Motta, Antonio Romero, Joa˜o Paulo C. e S. Nunes, Jose´ L. Zaganelli und Marcelo Brack. „Most Recent Developments for Monitoring and Controlling the Annulus Conditions of Marlim-Sul Flexible Risers“. In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-80011.

Der volle Inhalt der Quelle

Annotation:

The main objective of this paper is to present the recent developments for monitoring and controlling the annulus conditions of flexible risers. Petrobras has been monitoring the pressure of permeated gas in the annulus region of some risers in order to infer the eventual occurrence of non-conformities as damage on the riser external sheath, for example. Such occurrence would affect the permeated gas flow pattern, the gas pressurization period and the relief valve opening frequencies. Furthermore, the mentioned occurrence would increase the susceptibility of the steel armors to experience the potential failure mechanism of corrosion. In Petrobras, the current monitoring method is characterized by visual and periodic manometer readings from a manometer set installed near each riser end-fitting. The data is recorded in a daily report and analyzed by personnel onshore, who are in charge of comparing data and requesting relief valve’s actuation, whenever necessary. The paper illustrates Marlim-Sul Asset experience on monitoring and data processing to control the annulus conditions of flexible risers during operation. It presents the in-house developed methodology to data management and processing. This methodology is based on a daily analysis of the permeated gas data worksheet. Some examples are given to illustrate it. The paper also summarizes current developments, in progress, in order to improve riser integrity management. The first development is being done to implement, in the future, automatic data acquisition and control systems. The purpose of automating this process is to improve methods and techniques for data acquisition, transmission and processing. The second development focuses on applications in which riser top end-fittings are submerged. In this particular scenario, a special system — with a quick connection subsea device — is under development to allow the connection, by divers, after the riser pull-in, of the riser annulus to the platform gas collecting facilities. The idea is prevent seawater ingress into the riser annulus during installation, maintenance and operational phases. Therefore, the permeated gas pressure can be monitored and the annulus behavior can be controlled from the surface. The final expectation is to improve riser integrity management, providing another source of information at low cost, helping technicians to decide whenever it is time to inspect, repair or replace a riser, preventing hydrocarbon leakage to the environment.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Wir bieten Rabatte auf alle Premium-Pläne für Autoren, deren Werke in thematische Literatursammlungen aufgenommen wurden. Kontaktieren Sie uns, um einen einzigartigen Promo-Code zu erhalten!