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Relevant bibliographies by topics / Hydraulic policies

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Academic literature on the topic 'Hydraulic policies'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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Journal articles on the topic "Hydraulic policies"

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Ciullo, Alessio, Karin M. De Bruijn, Jan H. Kwakkel, and Frans Klijn. "Systemic Flood Risk Management: The Challenge of Accounting for Hydraulic Interactions." Water 11, no. 12 (November 29, 2019): 2530. http://dx.doi.org/10.3390/w11122530.

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Rivers typically flow through multiple flood-protected areas which are clearly interconnected, as risk reduction measures taken at one area, e.g., heightening dikes or building flood storage areas, affect risk elsewhere. We call these interconnections ‘hydraulic interactions’. The current approach to flood risk management, however, neglects hydraulic interactions for two reasons: They are uncertain and, furthermore, considering them would require the design of policies not only striving for risk reduction, but also accounting for risk transfers across flood-protected areas. In the present paper, we compare the performance of policies identified according to the current approach with those of two alternative formulations: One acknowledging hydraulic interactions and the other also including an additional decision criterion to account for equity in risk distribution across flood-protected areas. Optimal policies are first identified under deterministic hydraulic interactions, and, next, they are stress-tested under uncertainty. We found that the current approach leads to a false sense of equal risk distribution. It does, however, perform efficiently when a risk-averse approach towards uncertain hydraulic interactions is taken. Accounting for hydraulic interactions in the design of policies, instead, increases efficiency and both efficiency and equity when hydraulic interactions are considered deterministically and as uncertain, respectively.

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Duarte Abadía, Bibiana, Rutgerd Boelens, and Lucas du Pré. "Mobilizing Water Actors and Bodies of Knowledge. The Multi-Scalar Movement against the Río Grande Dam in Málaga, Spain." Water 11, no. 3 (February 26, 2019): 410. http://dx.doi.org/10.3390/w11030410.

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Just as in other parts of Spain, the Guadalhorce Valley, Málaga, has a long history of policies based on ‘hydraulic utopianism’ (regenerationist and Franco-ist), bent on ‘reorganizing’ political, geographic, and human nature. Residents of the neighboring sub-basin, the Río Grande valley, have seen how these policies, designed to transfer rural water to modern urban centers, have turned the Guadalhorce hydrosocial territory into a ‘hydraulic dystopia’. In this article, we examine how Río Grande valley residents mobilized to maintain control over the development and use of their resources, livelihoods, and knowledge systems, when modernist-urbanist policies planned to take their water from a major dam on the Río Grande. Interviewing actors at different scales we examined how this anti-dam movement organized massively in a creative, multi-actor, and multi-scale network. Our results also show that this unified, successful fight against the ‘common enemy’, the mega-hydraulic construction, has become more complex, as threats crop up not only from the ‘city over there’ but also from ‘internal’ hydro-territorial transformations. These sprout from policies to modernize traditional irrigation systems, supposedly to ‘save water’, but critical voices assume that it is all about passing on the ‘surplus’ to Málaga city, or using that water to expand agribusiness. We conclude that the challenge lies in critically integrating multiple forms of knowledge, stakeholders, and scales to both defend collective water management and creatively construct anti-hegemonic alternatives.

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Rizk, M. "Performance Requirements of Hydraulic Pumps/Motors Related to Non-Conventional Energy Sources." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power Engineering 203, no. 3 (August 1989): 201–5. http://dx.doi.org/10.1243/pime_proc_1989_203_028_02.

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Hydraulic pumps/motors can be connected to different systems which utilize non-conventional energy. These systems produce unsteady output energy even when a control policy is adopted to stabilize it. Therefore, in such systems, hydraulic pumps/motors work under dynamic conditions. This paper presents examples of wind energy conversion systems with different control policies. The available daily wind-power distributions at El-Minia, Wadi El-Natrun and Hurghada in Egypt are calculated. A suitable cut-in wind power is chosen for each site. The maximum rate of change of the available power is determined. The starting input power required to drive a hydraulic gear pump and a hydraulic gear motor, experimentally measured, is compared with the cut-in wind power at the studied sites. An example of the speed dynamic response of the pump and motor is illustrated. The study in this paper reveals that specifications of hydraulic pumps/motors should include, in addition to the static performance, both their frictional torque and dynamic behaviour as well.

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Davis, Charles E. "Shaping State Fracking Policies in the United States." State and Local Government Review 49, no. 2 (June 2017): 140–50. http://dx.doi.org/10.1177/0160323x17712555.

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This article presents an overview of research focusing on how state and local governments have regulated oil and gas over the past decade following the expanded industry use of new technologies like hydraulic fracturing (fracking) and horizontal drilling. A consequence of fracking was a substantial increase in energy production accompanied by the emergence of policy concerns about how resource development and jobs could be balanced with efforts to maintain environmental quality. Researchers have dealt with three key concerns in the following sections: (1) determining whether state and local officials can each play an important role in developing policies affecting oil and gas drilling activities, (2) examining how state regulators deal with environmental and health impacts associated with fracking, and (3) looking at how state policy decisions have been shaped taking into account both state-level political and economic characteristics and agency resources and political will.

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Drusiani, R., P. Bersani, and P. Penta. "The ancient Lake Albano tunnel: origins and considerations regarding the hydraulic regulation achieved." Water Supply 7, no. 1 (March 1, 2007): 269–76. http://dx.doi.org/10.2166/ws.2007.031.

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A brief description of the geomorphological, historical, and archaeological aspects of the Colli Albani area, where the volcanic lakes of Albano and Nemi are situated, is followed by an examination on the problem of the policies of lake Albano regulation, by means of an ancient tunnel dating at least to the 5th century BC. In particular, it is investigated how, in the presence of even severe atmospheric phenomena, it was possible to control fluctuations in the level of the lake on the banks of which there were large settlements. Mathematical model simulations indicate the effectiveness of the ancient tunnel in achieving these objectives.

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Finkel, Madelon L., Jake Hays, and Adam Law. "Modern Natural Gas Development and Harm to Health: The Need for Proactive Public Health Policies." ISRN Public Health 2013 (May 16, 2013): 1–5. http://dx.doi.org/10.1155/2013/408658.

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High-volume horizontal hydraulic fracturing of shale formations has the potential to make natural gas a significant, economical energy source, but the potential for harm to human health is often dismissed by proponents of this method. While adverse health outcomes of medical conditions with long latency periods will not be evident for years and will depend on the exposure, duration of exposure, dose, and other factors, we argue that it would be prudent to begin to track and monitor trends in the incidence and prevalence of diseases that already have been shown to be influenced by environmental agents. The dirty downside of modern, unconventional natural gas development, as well as the potential for harm, is discussed.

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Almeida, Maria Antónia. "The use of rural areas in Portugal: Historical perspective and the new trends." Revista Galega de Economía 29, no. 2 (October 16, 2020): 1–17. http://dx.doi.org/10.15304/rge.29.2.6750.

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The Portuguese landscape and its rural areas are the result of thousands of years of human presence, particularly since the late nineteenth century, when protectionist public policies were put in place to promote food self-sufficiency. During the Estado Novo regime, four main agricultural policies were enforced: wheat campaigns, internal colonization, agricultural hydraulic systems and reforestation. Nevertheless, there was a massive rural exodus, starting mainly in the 1960s, which resulted in the depopulation of 80 per cent of the territory. Nowadays, less than 20 per cent of the Portuguese population inhabits interior regions. This demographic change presents huge socio-economic challenges. Recently there have been new trends, based on land concentration and super intensive monoculture, which are incompatible with central and local governments’ policies and strategies to reverse depopulation. The sustainability of Portugal’s rural world, its landscape and the quality of life of its population are at risk. Four items were identified in this article: eucalyptus and pine forests, olive plantations, greenhouses and mining.

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COURTNEY, CHRIS. "At War with Water: The Maoist state and the 1954 Yangzi floods." Modern Asian Studies 52, no. 6 (July 17, 2018): 1807–36. http://dx.doi.org/10.1017/s0026749x16001049.

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AbstractThis article offers a critical reappraisal of the Maoist state's response to the 1954 Yangzi floods. It uses a variety of sources, including previously classified government reports and oral history testimony, to challenge the official narrative. It argues that, far from being a remarkable victory for the new government, the flood was a humanitarian catastrophe that caused almost 150,000 deaths. Government hydraulic policies were partly to blame, as the vast majority of disaster victims were located in rural areas that were flooded deliberately in order to protect cities. In addition to revealing the true scale of the flood, this article uses the disaster as a prism to examine the early Maoist state. The government's combative environmental policies turned disaster governance into a war on water. This approach had certain benefits, particularly in terms of organizing an effective urban relief campaign. Unfortunately, campaign politics fostered an atmosphere of distrust, which encouraged many citizens to resist disaster-prevention policies. The example of the 1954 flood reveals the profound impact that a political context can have upon the outcome of a supposedly natural disaster.

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Zeng, Qingliang, Wenting Liu, Lirong Wan, Chenglong Wang, and Kuidong Gao. "Maintenance Strategy Based on Reliability Analysis and FMEA: A Case Study for Hydraulic Cylinders of Traditional Excavators with ERRS." Mathematical Problems in Engineering 2020 (November 19, 2020): 1–11. http://dx.doi.org/10.1155/2020/2908568.

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A simple and effective mechanical parts maintenance approach with lower cost is urgently needed by the cost-sensitive manufactures for traditional excavators (HE). This paper proposes maintenance strategy for hydraulic cylinders (HC) of HE with energy regeneration and recovery system (ERRS). Reliability analysis and FMEA of historical failure data are applied to make maintenance strategy. In this study, the failure data required for reliability analysis are collected from the manufacturers and users over two and a half years, Excel is used as statistical tool, Minitab is used for parameter estimation, and Kolmogorov–Smirnov test is used to reject or accept the hypothesis of the distribution model. The reliability parameters R(t), Rset, and R∗(t) are determined and parameter β∗ is the reference value for making countermeasures and maintenance policies properly for the failure modes of the new HC of HE with ERRS. The purpose of this paper is to make proper maintenance policies and to maintain a high availability level and fulfill the user’s needs for HC, which also paves the way for further reliability study about ERRS.

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Xiang, Long, Guangbai Cui, Xing Chen, Qicheng Zhang, and Yongshu Zhu. "Systematic methodology and practice of a co-governance program for five waters in a typical area of China." Water Policy 17, no. 5 (March 24, 2015): 804–14. http://dx.doi.org/10.2166/wp.2015.176.

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A co-governance program for five waters (CPFW), including sewage treatment, flood prevention, drainage, water supply and saving, is an innovative concept in water resource management. It includes current and near future system projects and advanced management policies for water utilization and protection. In this paper, the scientific connotation of CPFW is explained by multidisciplinary theory. Based on current guidance and technology, evaluation targets and water management countermeasures are specified. Combining hydraulic engineering and their characteristics, operable approaches for CPFW are suggested for projects' designation and construction. These approaches of CPFW are applied in a typical area. Systematic projects are composed of sewage interception projects, efficient water supply projects and hydraulic projects with ecological engineering. With the guidance of CPFW, all projects are connected together and their integrated benefits are evaluated in water saving, sewage drainage, increase in environmental capacity and ensuring security. The results show the CPFW is valuable and available both in theory and in practice.

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Dissertations / Theses on the topic "Hydraulic policies"

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Castro, Jose Esteban. "Water, power and citizenship : contemporary social struggles in the valley of Mexico; a long-term perspective." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267553.

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Lafinhan, Dipo. "The changing governance of UK flood management policies 1998-2010 : a comparative analysis of local approaches in Scotland and England." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33815/.

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The governments of Scotland and England have responded to the increase in flood risk by introducing legislation intended to manage present day flood risk and to avoid future flood risk. This thesis evaluates how the new policy regime has evolved and been implemented in Scotland and England, focusing particularly in Local Authorities, and using contrasts in rural and urban settings to reveal how the policy has had to be adapted to apply effectively in these different physical and administrative environments. Based on discourse theory and the institutionalisation features of policy networks, it is argued first that the new policy regime is subject to multiple interpretations and, second that policy change occurs as a result of the transformation of institutional practices of the multiple flood governance discourses by policy narratives in the policy process. The concept of the advocacy coalition framework is applied to reveal how contrasting local governance approaches result from continuous interactions between national policies and distinctive, local factors. These arguments are supported by the results of empirical research that examined policy change and local governance interpretation through textual analysis of relevant policy documents, interviews with key institutional stakeholders and participant observation of a local stakeholder meeting. Research findings reveal how the more pro-active local governance approaches serve as innovators in informing future national policies. This process stems from local interpretation of existing national policy through the mediating effects of distinctive local policy factors that result in the introduction of new policy ideas and actors. These ideas and the involvement of new actors are in turn transferred through revisions to national policies of flood risk governance. Consequently the policy mediating features of Local Authorities are manifest through first, the utility of policy narratives in driving national policy change and second, in shaping policies in local governance approaches.

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Melo, Gilson Duarte de. "Planejamento dos recursos h?dricos da bacia hidrogr?fica do rio Serid?, no Rio Grande do Norte." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15947.

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Made available in DSpace on 2014-12-17T15:03:19Z (GMT). No. of bitstreams: 1 GilsonDM.pdf: 1406431 bytes, checksum: ba7f7bf81266e47bd2a8051842929190 (MD5) Previous issue date: 2008-01-04
The present research has the purpose of planning the management of the water resources of the Serid? River watershed, in the state of Rio Grande do Norte, Brazil. It has an emphasis on the amount of surface water available in this region, to provide a sustainable water supply. Based on data and information collected from public departments responsible for the management of the water resources of the Rio Grande do Norte state, well as on researches related to water resources , a watershed balance was done, and the results suggested the transposition of the waters from the Piranhas-A?u river watershed taken from the Oiticica and Armando Ribeiro Gon?alves reservoirs, integrated with the construction of 2 hidroelectrical plants and 2 elevation stations, to pump the amount of water needed to the expected demand in some public dams of the region until 2020. So, with the use of the surface water potential that exists in the region, it was demonstrated that, on the contrary of the public policies implemented in the past and in the current by the federal and state realm, it is possible to supply the currently water demands and also the future ones, in a sustainable way, without the need of importing outter water to the respective watershed. Finally, it was proposed the implementation of the Water Resources Plan in the Serid? region WRPS, aiming at providing an auto-sustainable development by significantly diminishing the effects of the dry seasons in that region, by considering the economic, social and environmental sustainability
O presente trabalho tem o prop?sito de planejar a utiliza??o e o manejo necess?rio dos recursos h?dricos da bacia do rio Serid?, no Estado do Rio Grande do Norte, com ?nfase na quantidade de ?gua superficial dispon?vel na regi?o, para abastecimento humano priorit?rio, de forma sustent?vel. Com base nos dados e informa??es coletadas junto aos ?rg?os p?blicos respons?veis pela gest?o dos recursos h?dricos no Estado do Rio Grande do Norte, bem como em outros trabalhos relacionados ? linha de pesquisa recursos h?dricos , foi efetuado o balan?o h?drico da bacia em estudo, cujo resultado sugeriu a transposi??o de ?guas da bacia do rio Piranhas-A?u, atrav?s da capta??o nas Barragens Oiticica e Eng? Armando Ribeiro Gon?alves, de modo integrado ? constru??o de 02 (duas) centrais hidrel?tricas e 02 (duas) esta??es elevat?rias, para bombear a ?gua necess?ria ? demanda prevista para o horizonte do ano 2020, para alguns a?udes p?blicos mais importantes da regi?o. Assim, com o aproveitamento do potencial h?drico superficial existente na regi?o, foi demonstrado que, ao contr?rio das pol?ticas p?blicas implementadas no passado e atuais pelos governos federal e estadual, pode-se atender ?s demandas h?dricas atualmente existentes e ?s futuras, de modo sustent?vel, sem a necessidade de importa??o de ?gua ex?gena ? bacia da regi?o. Por fim, foi proposta a implanta??o do Plano de Recursos H?dricos do Serid? PRHS, cujo principal objetivo consiste em propiciar o desenvolvimento auto-sustent?vel, diminuindo significativamente os efeitos das secas na regi?o Serid?, RN, com base nos princ?pios b?sicos de sustentabilidade econ?mica, social e ambiental, que nortearam o estudo

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Shrivastava, Bulbul. "USA’s policies on fracking." Thesis, 2017. https://hdl.handle.net/10539/24617.

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A research report submitted to the Faculty of Humanities, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Arts(International Relations), 2017
In the past decade, the United States’ oil and gas industry experienced an extraordinary boom, due to shale gas. Shale gas accounted for only 1.6% of total US natural gas production in 2000, 4.1% by 2005, and an astonishing 23.1% by 2010. This remarkable growth has spurred interest in exploring for shale gas resources elsewhere. The purpose of the study is how the rise of fracking in the USA has impacted its foreign policy towards climate change. An exploratory qualitative method, known as process-tracing was used, with the aim of providing evidence-based literature in order to explore the change in the USA’s domestic energy and climate policies; as well to see the change in its stance on climate change on the international platform. Some of the key concluding findings relate to the Obama Administration’s championing of the Clean Energy Act.
XL2018

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Ondovčin, Tomáš. "Slapové jevy v hydraulice podzemní vody." Doctoral thesis, 2012. http://www.nusl.cz/ntk/nusl-309459.

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Manifestations of the tidal force have been known to humanity since an- tiquity. The oldest extant remarks on the origin of the tidal force are in the Natural History of Pliny the Elder. He also left us remarks on periodic changes of water-level in wells. This phenomenon does not necessarily have to be connected to the proximity of seas. As such, it is a subject of research since the end of 19th century. Exploring the mechanisms with which the tidal force affects the groundwater level requires combining the findings of geology and hydrogeology but also the knowledge of hydraulics and geomechanics of porous media and certain understanding of astronomy. This thesis contribu- tes to the knowledge of the mechanism of tidal oscillations in groundwater measured in a borehole near Teplice nad Metují in Police Basin. It utilizes models based on the knowledge of geological and hydrogeological structure of the surroundings of the borehole. It investigates the relation between the physical properties of porous media and the amplitude and phase of the tidal oscillations and presents solutions of the models.

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Books on the topic "Hydraulic policies"

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Conan, Doyle Arthur. Famous Cases of Sherlock Holmes. Milano: La Spiga languages, 1995.

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Conan, Doyle Arthur. Sherlock Holmes investigates. London: Parragon, 1996.

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Conan, Doyle Arthur. Six Great Sherlock Holmes Stories. New York, USA: Dover Publications, 1992.

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Conan, Doyle Arthur. Favorite Sherlock Holmes Detective Stories. Mineola, N.Y., USA: Dover Publications, 2000.

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Conan, Doyle Arthur. The Great Adventures of Sherlock Holmes. 2nd ed. London, England: Puffin Books, 1994.

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Conan, Doyle A. Great Adventures of Sherlock Holmes. London: Puffin Books, 1990.

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Conan, Doyle Arthur. The Great Adventures of Sherlock Holmes. London: Penguin Publishing, 2010.

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Conan, Doyle Arthur. The Adventures of Sherlock Holmes and The Hound of the Baskervilles. Ann Arbor, MI: Borders Classics, 2007.

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Conan, Doyle Arthur. The Adventures of Sherlock Holmes and the Memoirs of Sherlock Holmes. London: Penguin Group UK, 2008.

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Conan, Doyle A. The adventures and the memoirs of Sherlock Holmes. New York: Sterling Children's Books, 2004.

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Book chapters on the topic "Hydraulic policies"

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Huang, Jianyuan, and Xiaoqiang Li. "Study on the Countermeasures to Improve the Enforcement Effects of the Reservoir Resettlement Post-Relocation Supporting Policies." In Advances in Water Resources and Hydraulic Engineering, 1481–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89465-0_257.

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Campobasso, Claudio, Giuseppe Delmonaco, Barbara Dessì, Pier Luigi Gallozzi, Benedetto Porfidia, Daniele Spizzichino, Francesco Traversa, and Giorgio Vizzini. "Long Term Strategies and Policies for Geological and Hydraulic Risk Mitigation in Italy: The ReNDiS Project." In Landslide Science and Practice, 39–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31313-4_6.

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Perera, Muditha Prasannajith, and K. W. G. Rekha Nianthi. "Land Use Planning and Management in Tank Cascade Environment of Sri Lanka." In Examining International Land Use Policies, Changes, and Conflicts, 310–29. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4372-6.ch016.

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The Tank Cascade System is one of the unique and socially accepted land-use practices in the dry zone of Sri Lanka which has evolved since 600 B.C. The small tank builders of the historical period had a profound and unified understanding of the natural resources, regional landscape, landforms, and hydrology. Tanks and irrigation canal systems, environmental zoning, forest reservations, agro-well-based land utilization, land-sharing system (Bethma), traditional soil conservation measures have been still maintaining well in some rural areas in the dry zone. Newly developed agro-well-based agro-forestry systems and some participatory techniques are also counted as few of sustainable land-use practices. This study has provided many valuable lessons of land use planning and management from the ancient hydraulic civilization and proving that the ancient system is still appropriate for the dry zone agricultural community rather than inadequately coordinated modern efforts of land use practices.

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"Modern Natural Gas Development and Harm to Health: The Need for Proactive Public Health Policies." In The Effects of Induced Hydraulic Fracturing on the Environment, 339–50. Apple Academic Press, 2013. http://dx.doi.org/10.1201/b16342-21.

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Ben Abdessalem, Wahiba, Sami Karaa, and Amira S. Ashour. "Renewable Energy Management with a Multi-Agent System." In Renewable and Alternative Energy, 1081–92. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1671-2.ch034.

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Renewable energy generation (Wind, solar …) is rising rapidly around the world. Energy storage is being today realistic with some kind of variable renewable electricity sources such as the Pumped Hydraulic Storage (PHS). The incorporation of the PHS requires different policies since there are a variety of electric generation technologies that can be exploited commonly with the PHS. The energy management system, the scheduling of the generation units is a crucial problem for which adequate solutions can optimize the energy supply. This paper focuses on the applicability of the PHS technology in the development of renewable energy generation in Tunisia. This paper proposes also a multi agent system that can be implemented to simulate the exploitation of the PHS, commonly with other energy sources: conventional energy, wind energy, photovoltaic energy etc.

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Barbier, Edward B. "Ending the Underpricing of Water." In The Water Paradox, 134–86. Yale University Press, 2019. http://dx.doi.org/10.12987/yale/9780300224436.003.0007.

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This chapter addresses the challenge of the chronic underpricing of water resources. In a world of rising water scarcity, the underpricing of water is anathema to good water management. There is growing recognition that this needs to change. Nearly all countries are embarking on pricing reforms and encouraging water markets to emerge. However, most of these efforts are still not confronting the main management paradigm of the modern era's “hydraulic mission,” which is that lack of water can always be met by new sources of supply. As long as this view persists, water pricing and markets will remain peripheral and will have little impact on reducing water scarcity. In short, the lack of appropriate water markets, pricing, and policies is a key symptom of the global crisis in water management.

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Vogel, David. "Managing Water Resources." In California Greenin', 115–53. Princeton University Press, 2019. http://dx.doi.org/10.23943/princeton/9780691196176.003.0005.

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This chapter examines California's water management projects, which represent an important exception to its leadership in the area of environmental protection. California's approach to water management is distinctive from its other environmental policies in three important respects. First, the threats to the state's aquatic environment came from government, not business. Second, with the notable exception of the battle over the damming and flooding of Hetch Hetchy around the turn of the century, until recently neither conservationists nor environmentalists challenged California's wide-ranging water management initiatives, despite the fact that many had deleterious environmental consequences. Third, historically, business interests were not divided with regard to what to do (or not do) with California's water. Both agricultural and urban commercial interests were united in their strong support for the continued expansion of the state's hydraulic infrastructure. Thus, in this case, the public and business were on the same side. As was the case with the protection of forests and scenic areas, the federal government has also played an important role in shaping California's approach to water management. The federal government's initial legal backing of and subsequent financial support for the state's water management system has been critical in promoting the exploitation of not only the state's but the region's water resources.

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Conference papers on the topic "Hydraulic policies"

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Bunea, Florentina, Diana Maria Bucur, Gabriel Dan Ciocan, and Georgiana Dunca. "Aeration solution of water used by hydraulic turbines to respect the environmental policies." In 2014 International Conference and Exposition on Electrical and Power Engineering (EPE). IEEE, 2014. http://dx.doi.org/10.1109/icepe.2014.6970062.

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Petersen, Christian, Ola Strand, Espen Johansen, Dag Almar Hansen, Dag Ketil Fredheim, and Per Ohlckers. "PACT - One Step Closer to Well Control Autonomy." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206274-ms.

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Abstract Pressure control have been going through steps of evolution. In the highlight of safety, reliability and control, the systems have been sturdy withstanding massive pressure and environmental impact to last the time of estimated life of well. Design have been emphasizing on sturdiness rather than intelligence and autonomy. Time moves on, sophistication levels rise in all parts of our industry. Sustainability and lower environmental impact of solutions grow from the young into business planning and democratic policies. Control lines of hydraulic systems posed risks to the environment as well as being costly in structure and maintenance. Condition monitoring helped ensure better maintenance planning and lowered the risk of breakdown, but still left a lot to be desired reaching for self-contained, self learning systems with low installation and maintenance costs, yet the safest approach. The next steps were taken towards electrification and digitization of pressure control systems, making short and undetermined strides over almost two decades. Still, the standards are not following the pace of technological progress. And when someone dares to pilot or demonstrate modern technology applied, the installations and operational procedures of the systems still need expensive distributed lines of power, of signals and control systems to ensure a swift and safe operation. The fly-by-wire principle applied in oil & gas is the operate-by-costly-technology-and-environmental-impact-lines. With the introduction of new and breaking technology in energy harvesting and storage, the playing field opens up towards fully automated systems with no need for expensive power lines or hydraulic control lines. The safety will be taken care of also off-grid, fully digitized. Should cabling of instrument signals be damaged, the system of tomorrow will still be up to par with the Safety Integrity Levels needed. New super-capacitors with an extra dense storage capacity being developed in partnership between the industry and the University of southeast Norway combined with an extremely low energy consuming actuation system with the fastest failsafe mechanism ever will ensure safety in all modes of operation, even with all lines down or consumed by flames. The paper aims to show how the technology works and underline why it will take a place in the future of well control and production.

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Hamilton, Scott R., and Thomas J. Smith. "Justification for a New Industry Standard for Torque Wrench Calibration." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78217.

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In most cases, it is assumed that a manual or hydraulic torque wrench will deliver the requested torque value if set correctly. However, torque wrenches have moving parts that will be subject to wear. They are also subject to harsh operating conditions in the field, which elevates the risk of damage. Calibration is the measurement of a device’s output to a known standard and adjustment to within specific tolerances if necessary. There are several different codes and standards that are followed in the industry, but these practices are normally left up to interpretation. Common sense tells us calibration of torque wrenches on a periodic basis would be advisable. Many in the industry have different policies that are inconsistent when considering several factors of a calibration program. This may be because there is not data available to justify the cost of such a calibration program or misconceptions on what calibration is and when it should be completed. An analysis of the data reveals exactly why regular, periodic calibration of torque wrenches should be an important part of any maintenance program. By using certain methods of calibration, one can mitigate the risk of an un-calibrated torque wrench affecting one’s facility. This paper includes general trends for a sample of torque wrenches that received calibration in order to compare the overall accuracy of the wrenches prior to calibration versus post-calibration. The study was conducted on data obtained from the calibration of hundreds of wrenches over a five year period. This may be considered a reasonable snap-shot of the inaccuracy of torque wrenches that may be expected in the field if recent calibration has not been performed. Due to the highly prevalent misconceptions regarding calibration found in the petrochemical and oil industry, there needs to be an industry standard for torque wrench calibration. Our hypothesis for this paper states that each torque wrench that is used in the field, whether it is new, used, or repaired, shall have an individual calibration performed at no less than a 12 month interval. This standard will prevent material damage to the installation and operation of equipment by correcting both slight deviations from accuracy tolerances and, especially, extreme outliers. The material presented in this paper will show justifcation of an industry standard that should be adopted.

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Reports on the topic "Hydraulic policies"

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Merwade, Venkatesh, and Sanjiv Kumar. Analysis of INDOT Current Hydraulic Policies. Purdue University, 2011. http://dx.doi.org/10.5703/1288284314628.

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