Relevant bibliographies by topics / Required power

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Required power'

Author: Grafiati
Published: 28 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Required power"

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Bradley, David. "Jacket required for wearable power." Materials Today 41 (December 2020): 4. http://dx.doi.org/10.1016/j.mattod.2020.10.013.

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Kitching, Karl. "Taking Responsibility for Race Inequality and the Limitless Acts Required: Beyond ‘Good/Bad Whites' to the Immeasurably Whitened Self." Power and Education 3, no. 2 (January 2011): 164–78. http://dx.doi.org/10.2304/power.2011.3.2.164.

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Makarov, E. S., A. E. Cheglov, A. E. Gvozdev, G. M. Zhuravlev, N. N. Sergeev, V. S. Yusupov, O. M. Gubanov, M. V. Kazakov, and A. D. Breki. "Power Required in the Plastic Deformation of Metallic Powder Materials." Steel in Translation 48, no. 9 (September 2018): 597–602. http://dx.doi.org/10.3103/s0967091218090061.

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KADOTA, Keiji. "Required Performance of Welding Power Source." JOURNAL OF THE JAPAN WELDING SOCIETY 89, no. 4 (2020): 239–43. http://dx.doi.org/10.2207/jjws.89.239.

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Welfonder, E., and M. Kurth. "Limitation control procedures, required for power plants and power systems." Annual Reviews in Control 31, no. 1 (January 2007): 93–104. http://dx.doi.org/10.1016/j.arcontrol.2007.02.006.

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Oyama, Tsutomu. "New Technologies Required in Deregulated Power Systems." IEEJ Transactions on Power and Energy 123, no. 1 (2003): 1–4. http://dx.doi.org/10.1541/ieejpes.123.1.

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Suhir, Ephraim. "Braking power required for safe landing: Probabilistic approach." Acta Astronautica 187 (October 2021): 394–96. http://dx.doi.org/10.1016/j.actaastro.2021.06.035.

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Yeh, C. H., C. W. Chow, and Y. L. Liu. "Adaptive upstream optical power adjustment depending on required power budget in PON access." Optics Communications 285, no. 24 (November 2012): 4927–30. http://dx.doi.org/10.1016/j.optcom.2012.07.049.

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Goldenberg, David H. "MARKET POWER AND THE REQUIRED RETURN TO ELECTRIC UTILITIES." Financial Review 22, no. 1 (February 1987): 175–93. http://dx.doi.org/10.1111/j.1540-6288.1987.tb00325.x.

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Glance, B. "Minimum required power for carrier recovery at optical frequencies." Journal of Lightwave Technology 4, no. 3 (1986): 249–55. http://dx.doi.org/10.1109/jlt.1986.1074711.

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Dissertations / Theses on the topic "Required power"

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Baree, M. S. "Added power required by ships in bad weather." Thesis, University of Newcastle Upon Tyne, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353793.

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Freas, Rosemary M. "Analysis of required supporting systems for the supercritical CO₂ power conversion system." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/44792.

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Thesis (S.M. and Nucl. E.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2007.
"September 2007."
Includes bibliographical references (p. 91-94).
Recently, attention has been drawn to the viability of using S-CO₂ as a working fluid in modem reactor designs. Near the critical point, CO₂ has a rapid rise in density allowing a significant reduction in the compressor work of a closed Brayton Cycle. Therefore > 45% efficiency can be achieved at much more moderate temperatures than is optimal for the helium Brayton cycles. An additional benefit of the S-CO₂ system is its universal applicability as an indirect secondary Power Conversion System (PCS) coupled to most GEN-IV concept reactors, as well as fusion reactors. The United States DOE's GNEP is now focusing on the liquid Na cooled primary as an alternative to conventional Rankine steam cycles. This primary would also benefit from being coupled to an S-CO₂ PCS. Despite current progress on designing the S-CO₂ PCS, little work has focused on the principal supporting systems required. Many of the required auxiliary systems are similar to those used in other nuclear or fossil-fired units; others have specialized requirements when CO₂ is used as the working fluid, and are therefore given attention in this thesis. Auxiliary systems analyzed within this thesis are restricted to those specific to using CO₂ as the working fluid. Particular systems discussed include Coolant Make-up and Storage, Coolant Purification, and Coolant Leak Detection. Concepts discussed include: potential forms of coolant storage, including cryogenic and high pressure gas, with some "back of the envelope" methods which can be used for estimating the coolant transferred; possible coolant contaminants and their sources; options for the procurement of the CO₂ from potential distributors, including available purities and estimated cost; the purity of CO₂ for the S-CO₂ system and purification methods; various methods of coolant leak detection using both insitu analyzers and portable devices for maintenance personnel, and instrumentation for the monitoring of compartmental CO₂ and CO concentrations to meet OSHA standards.
(cont.) A conceptual design is presented for coolant storage. Systems are discussed in terms of basic functionality, system requirements, desired features, basic safety and design concerns, and identification of issues to be resolved by future research.
by Rosemary M. Freas.
S.M.and Nucl.E.
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Freas, Rosemarv M. "Analysis of required supporting systems for the Supercritical CO2 power conversion system." Thesis, Cambridge Massachusetts Institute of Technology, 2007. http://hdl.handle.net/10945/2992.

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Recently, attention has been drawn to the viability of using S-CO(2) as a working fluid in modern reactor designs. Near the critical point, CO2 has a rapid rise in density allowing a significant reduction in the compressor work of a closed Brayton Cycle. Therefore, 45% efficiency can be achieved at much more moderate temperatures than is optimal for the helium Brayton cycles. An additional benefit of the S-CO2 system is its universal applicability as an indirect secondary Power Conversion System (PCS) coupled to most GEN-IV concept reactors, as well as fusion reactors. The United States DOE's GNEP is now focusing on the liquid Na cooled primary as an alternative to conventional Rankine steam cycles. This primary would also benefit from being coupled to an S-CO2 PCS. Despite current progress on designing the S-CO2 PCS, little work has focused on the principal supporting systems required. Many of the required auxiliary systems are similar to those used in other nuclear or fossil-fired units; others have specialized requirements when CO2 is used as the working fluid, and are therefore given attention in this thesis. Auxiliary systems analyzed within this thesis are restricted to those specific to using CO2 as the working fluid. Particular systems discussed include Coolant Make-up and Storage, Coolant Purification, and Coolant Leak Detection.
Contract number: N62271-97-G-0026.
US Navy (USN) author
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Boquist, Pär. "OFFSHORE WIND POWER INVESTMENT MODEL USING A REFERENCECLASS FORECASTING APPROACH TO ESTIMATE THE REQUIRED COSTCONTINGENCY BUDGET." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-261115.

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Forecasting capital expenditures in early stages of an offshore wind power project is aproblematic process. The process can be affected by optimism bias and strategicmisrepresentation which may result in cost overruns. This thesis is a response to issuesregarding cost overruns in offshore wind power projects. The aim of this thesis is tocreate a cost forecasting method which can estimate the necessary capital budget in awind power project. The author presents a two-step model which both applies the inside view and outsideview. The inside view contains equations related to investment and installation costs.The outside view applies reference class forecasting in order to adjust the necessary costcontingency budget. The combined model will therefore forecast capital expenditures fora specific site and adjust the cost calculations with regard to previous similar projects. The results illustrate that the model is well correlated with normalized cost estimationsin other projects. A hypothetical 150MW offshore wind farm is estimated to costbetween 2.9 million €/MW and 3.5 million €/MW depending on the location of the windfarm.
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Katende, Landry Mbangu. "Application of mass and energy balances to determine coal, air required and flue gas flow rates in a power plant." Thesis, Cape Peninsula University of Technology, 2019. http://hdl.handle.net/20.500.11838/3051.

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Thesis (MEng (Mechanical Engineering))--Cape Peninsula University of Technology, 2019
The primary objective of this study was to determine the heat rate of the power plant using the measurements of critical parameters and MEB calculations. An additional goal of the project was to determine the flue gas and air mass flow rates which influence the efficiency of the coal power plant. The consumption of coal is a critical parameter affecting the efficiency of coal-fired steam boilers. From an operational perspective, the mass flow rate of pulverised coal is a major indicator of the rate of combustion and plant heat rate. However, the cost of electricity production in thermal coal power plants operated by ESKOM, is predominantly influenced by pulverized coal which represents between 60-70% of the total cost. Monitoring the consumption of coal can determine corrective actions which will ultimately improve the power plant’s efficiency, reliability and associated economic benefits. Initially, the fundamental concepts of a boiler and its auxiliaries were studied, which led to the required coal, air and flue gas systems required in a coal-fired boiler plant. From the literature review, it was established that coal consumption is a critical indicator of a plant’s performance in terms of cost and efficiency. The different methods used for the flow measurements of coal, air and flue gas in a coal-fired boiler plant, such as MEB and CFD were reviewed. The MEB method was used to determine the pulverised coal, air, and flue gas mass flow rates and the plant’s heat rate. The MEB method was used to establish a coherent set of input and output data for the boiler, as well as to troubleshoot existing measurements from ESKOM’s coal-fired power plant. The plant’s coal consumption and heat rate results were calculated by means of a Mathcad model that was developed using BMEB methodology. Mathcad was chosen because it allows to visually check calculations. Furthermore ANSYS Fluent was used for the CFD simulation in the secondary air system.
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Taylor, Katherine Anne. "Reducing the power required for irrigation : designing low-pressure, pressure-compensating drip irrigation emitters and high efficiency solar-powered pumps for emerging markets." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100350.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 81-86).
This thesis presents a mathematical model investigating the physics behind pressure compensating (PC) drip irrigation emitters and a design of a highly efficient solar powered centrifugal pump for small-acreage farmers drawing from shallow groundwater. The global community is facing a worsening crisis with regards to the water-energy agriculture nexus. Irrigation is a proven way to increase the agricultural productivity of a plot of land; however, with a growing population, it will be necessary to invest in methods of irrigation that are both energy- and water-efficient, and intensify the agricultural output per unit of land. Drip irrigation, a method of irrigation where water is delivered directly to the plant roots through a network of tubes and valves, is a highly water-efficient method that gives high yield per unit area. The current challenge to adoption facing drip irrigation is the high capital and operating costs. It is possible to cut these costs by developing a valve, called an emitter, that gives the desired flow rate at a lower pressure. This lower pressure in turn requires less energy from the pump, allowing for a smaller and less expensive pump, and even making a solar-powered system affordable for small-acreage farmers. In coming decades, it will become increasingly necessary to switch from fossil-fuel based energy to renewables, such as solar. For small acreage farmers in the developing world, this switch will not only alleviate the pains of paying the recurring and volatile costs for diesel fuel, it will also help to lighten the load on the electrical grid by those using electric pumps.
by Katherine Anne Taylor.
S.M.
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Johnson, Earl E. "Prescriptive Amplification Recommendations for Hearing Losses with a Conductive Component and Their Impact on the Required Maximum Power Output: An Update with Accompanying Clinical Explanation." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/1702.

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Background: Hearing aid prescriptive recommendations for hearing losses having a conductive component have received less clinical and research interest than for losses of a sensorineural nature; as a result, much variation remains among current prescriptive methods in their recommendations for conductive and mixed hearing losses (Johnson and Dillon, 2011). Purpose: The primary intent of this brief clinical note is to demonstrate differences between two algebraically equivalent expressions of hearing loss, which have been approaches used historically to generate a prescription for hearing losses with a conductive component. When air and bone conduction thresholds are entered into hearing aid prescriptions designed for nonlinear hearing aids, it was hypothesized that that two expressions would not yield equivalent amounts of prescribed insertion gain and output. These differences are examined for their impact on the maximum power output (MPO) requirements of the hearing aid. Subsequently, the MPO capabilities of two common behind-the-ear (BTE) receiver placement alternatives, receiver-in-aid (RIA) and receiver-in-canal (RIC), are examined. Study Samples: The two expressions of hearing losses examined were the 25% ABG + AC approach and the 75% ABG + BC approach, where ABG refers to air-bone gap, AC refers to air-conduction threshold, and BC refers to bone-conduction threshold. Example hearing loss cases with a conductive component are sampled for calculations. The MPO capabilities of the BTE receiver placements in commercially-available products were obtained from hearing aids on the U.S. federal purchasing contract. Results: Prescribed gain and the required MPO differs markedly between the two approaches. The 75% ABG + BC approach prescribes a compression ratio that is reflective of the amount of sensorineural hearing loss. Not all hearing aids will have the MPO capabilities to support the output requirements for fitting hearing losses with a large conductive component particularly when combined with significant sensorineural hearing loss. Generally, current RIA BTE products have greater output capabilities than RIC BTE products. Conclusions: The 75% ABG + BC approach is more appropriate than the 25% ABG + AC approach because the latter approach inappropriately uses AC thresholds as the basis for determining the compression ratio. That is, for hearing losses with a conductive component, the AC thresholds are not a measure of sensorineural hearing loss and cannot serve as the basis for determining the amount of desired compression. The Australian National Acoustic Laboratories has been using the 75% ABG + BC approach in lieu of the 25% ABG + AC approach since its release of the National Acoustic Laboratories—Non-linear 1 (NAL-NL1) prescriptive method in 1999. Future research may examine whether individuals with conductive hearing loss benefit or prefer more than 75% restoration of the conductive component provided adequate MPO capabilities to support such restoration.
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Meckstroth, Christopher. "Incorporation of Physics-Based Controllability Analysis in Aircraft Multi-Fidelity MADO Framework." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1575557306181006.

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de, Groot Martijn. "Development of a Plug and Play Solution for Commercial Off-grid Solar Refrigeration : Presenting a Battery Supported System Providing the AC Power Required to run a Coolfinity 300L Commercial Refrigerator." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302991.

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In this report the design and testing of a plug and play system to run Coolfinity’s Icevolt 300 refrigerator on solar panels is discussed. Such a system will be able to provide adequate cooling for food & beverages in area’s with unreliable or no electricity available. Currently such systems are only available for small chest refrigerators, while the Icevolt 300 is a large standing commercial refrigerator with a glass door. This is ideal for shops, cafés restaurants and smaller distribution centres. The system contains a solar charge controller, a battery and an inverter. First the component specifications and required solar panels are calculated. From those calculations system components are evaluated. A custom casing is designed to fit the components. An OEM is chosen and the chosen Inverter is tested extensively. The tests show that the inverter does not have any problems starting the Icevolt 300 compressor at a reduced voltage. Many battery manufacturers are evaluated and samples from three different manufacturers are obtained and tested. Samples of one of the manufacturers match specifications and have no issues with the high start up power of the compressor. A full system test proofs that the system works, but also indicates that the original refrigerator consumption estimate was too low. This means more PV panels are needed than originally estimated. With the information from the tests a new model is build that estimates the performance more accurate. A program is written to estimate the performance and decide the PV panels required. The pilot series of the case showed a lot of improvements are needed in the case design, especially on cost. A test is prepared in Mali but no test data is obtained yet. Based on the work done it would be recommend to investigate DC direct refrigerators instead of continuing the path of PV to AC systems.
I denna rapport diskuteras design och testning av ett plug and play - system för att köra Coolfinity’s Icevolt 300 -kylskåp på solpaneler. Ett sådant system kommer att kunna tillhandahålla tillräcklig kylning för mat och dryck i områden med opålitlig eller ingen tillgänglig el. För närvarande är sådana system endast tillgängliga för små kylboxar, medan Icevolt 300 är ett stort stående kommersiellt kylskåp med en glasdörr. Detta är idealiskt för butiker, kaféer och mindre distributionscentra. Systemet innehåller en laddningsregulator för solpaneler, ett batteri och en växelriktare. Först beräknas komponentspecifikationerna och nödvändiga solpaneler. Utifrån dessa beräkningar utvärderas systemkomponenter. Ett anpassat hölje är utformat för att passa komponenterna. En OEM väljs och den valda växelriktaren testas utförligt. Testerna visar att växelriktaren inte har några problem att starta Icevolt 300 -kompressorn med reducerad spänning. Många batteritillverkare utvärderas och prover från tre olika tillverkare erhålls och testas. Prover från en av tillverkarna matchar specifikationerna och har inga problem med kompressorns höga starteffekt. Ett fullständigt systemtest bevisar att systemet fungerar, men indikerar också att den ursprungliga uppskattningen av kylförbrukningen var för låg. Det betyder att fler PV -paneler behövs än vad som ursprungligen beräknades. Med informationen från testerna byggs en ny modell som uppskattar prestandan mer exakt. Ett program skrivs för att uppskatta prestanda och bestämma vilka PV -paneler som krävs. Pilotserien för höljet visade att många förbättringar behöver göras vad beträffar höljets design, särskilt vad gäller kostnaden. Ett test förbereds i Mali men inga testdata har erhållits ännu. Baserat på det utförda arbetet skulle det rekommenderas att undersöka direkta DC -kylskåp istället för att fortsätta vägen för PV till AC-system.
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Šafránek, Martin. "Univerzální charakteristiky pístových motorů s vrtulí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443742.

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Determining the characteristics of piston engines with a propeller is a complex task. Accurate calculations are based on engine and propeller characteristics from the manufacturers, which are, however, quite demanding. It is also possible to use simplified models that can predict the achievable values of propeller efficiency and fuel consumption. They are based on a simple propeller efficiency and maximum power. However, these models are often very inaccurate, which is a significant disadvantage. Therefore, it is possible to use the universal characteristics of propeller propulsion units, which offers a more accurate calculation of power and fuel consumption using a relatively simple model. The diploma thesis deals with a summary description of all characteristics of reciprocating internal combustion engines and propellers. A mathematical model was created here, which works according to a certain algorithm based on the joint work of the engine and the propeller. This model can predict the required power and fuel consumption in different flight modes much more accurately. The results were applied to the performance of ultralight aircraft, especially to the range, which was significantly increased.
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Books on the topic "Required power"

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US GOVERNMENT. An Act to Extend the Time Required for the Construction of a Hydroelectric Project. [Washington, D.C.?: U.S. G.P.O., 1998.

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Gerend, Jason. Effective executive's guide to Outlook 2002: The seven core skills required to turn Outlook into a business power tool. Redmond, WA: Redmond Technology Press, 2001.

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Effective executive's guide to Word 2002: The seven core skills required to turn Word into a business power tool. Redmond, WA: Redmond Technology Press, 2001.

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Maguiness, David. Effective executive's guide to Excel 2002: The seven core skills required to turn Excel into a business power tool. Redmond, WA: Redmond Technology Press, 2001.

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Connally, Carolyn M. Effective executive's guide to Office XP: The seven core skills required to turn Office into a business power tool. Redmond, WA: Redmond Technology Press, 2001.

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Maguiness, David. Effective executive's guide to Excel 2002: The seven core skills required to turn Excel into a business power tool. Redmond, WA: Redmond Technology Press, 2001.

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Coleman, Pat. Effective executive's guide to the Internet: The seven core skills required to turn the Internet into a business power tool. Redmond, WA: Redmond Technology Press, 2000.

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Coleman, Pat. Effective executive's guide to Windows 2000: The seven core skills required to turn Windows 2000 Professional into a business power tool. Redmond, WA: Redmond Technology Press, 2000.

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Commission, Virginia State Corporation. Staff's report to the State Corporation Commission in preparation for the Commission's report to the Governor and the General Assembly: As required by the third enactment clause of SB 1416, enacted as chapter 933 of the 2007 Acts of the General Assembly. Richmond: Commonwealth of Virginia, 2007.

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FEDERATION, INTERNATIONAL METALWORKERS. The purchasing power of working time -an international comparison: International comparison average of net hourly earnings in 1987 based on working time required for the purchase of various consumer. Geneva: International Metalworkers Federation, 1988.

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Book chapters on the topic "Required power"

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Zhu, Yue. "Required Accuracy Level of Critical Load Model Parameters." In Power System Loads and Power System Stability, 129–42. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37786-1_7.

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Hari Gupta, Om, Manoj Tripathy, and Vijay K. Sood. "Modifications Required in Power System to Meet Increasing Power Demand." In Protection Challenges in Meeting Increasing Electric Power Demand, 19–32. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-60500-1_2.

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Bamonte, Patrick, and Pietro G. Gambarova. "Properties of Concrete Required in Nuclear Power Plants." In Infrastructure Systems for Nuclear Energy, 407–38. Chichester, UK: John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118536254.ch25.

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McNulty, Keith. "Power Analysis to Estimate Required Sample Sizes for Modeling." In Handbook of Regression Modeling in People Analytics, 221–34. Boca Raton: Chapman and Hall/CRC, 2021. http://dx.doi.org/10.1201/9781003194156-11.

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Soon Kang, Chang, Sung Gu Choi, Nam Jin Park, and Ki Seok Kim. "Characterization of the Required Signal Power for Multimedia Traffic in DS-CDMA Systems." In Mobile Communications, 12–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-36555-9_2.

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Cordoș, Nicolae, Adrian Todoruț, Călin Iclodean, and István Barabás. "Influence of the Dynamic Vehicle Load on the Power Losses Required to Overcoming the Rolling Resistance." In The 30th SIAR International Congress of Automotive and Transport Engineering, 195–202. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32564-0_23.

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Cooke, Christian. "GB Grid 9 August 2019 Power Outage and Grid Inertia." In Springer Proceedings in Energy, 91–97. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_12.

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AbstractA power outage on 9 August 2019 raised questions about the ability of the GB electricity grid to withstand rapid changes in frequency caused by outages and surges on the network. Grid inertia has been changing in recent years due to the emergence of renewable energy generation as a significant contributor to the energy mix. Measures to mitigate this change need to be evaluated and the level of investment required to prevent a reoccurrence of such an event quantified. An outline is presented of a research programme towards this goal.
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Hosseini, Seyed Vahid, Ali Izadi, Seyed Hossein Madani, Yong Chen, and Mahmoud Chizari. "Design Procedure of a Hybrid Renewable Power Generation System." In Springer Proceedings in Energy, 155–62. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_20.

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AbstractElectrification of small communities in districted off-grid area remains as a challenge for power generation industries. In the current study, various aspects of design of a standalone renewable power plant are examined and implemented in a case study of a rural area in Cape Town, South Africa. Estimating required electricity based on local demand profile, investment, operability, and maintenance costs of different generation technologies are studied in order to investigate their potential in an off-grid clean energy generation system. Several configurations of hybridization of solar system, wind, and micro gas turbine in combination with a battery are investigated. The Levelized Cost of Electricity (LCOE) and number of days with more than 3 h black out are compared.
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Eargle, John M. "Acoustical Power Required to Produce a Level of 94 dB Lp as a Function of Room Volume and Reveberation Time." In Electroacoustical Reference Data, 48–49. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2027-6_24.

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Shashi Menon, E. "Power Required to Transport." In Transmission Pipeline Calculations and Simulations Manual, 317–27. Elsevier, 2015. http://dx.doi.org/10.1016/b978-1-85617-830-3.00008-0.

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Conference papers on the topic "Required power"

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Torrez, Sean M. "Minimum Weight Engine Configuration Given Required Power." In AIAA Propulsion and Energy 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-3916.

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Watanabe, Keiko, and Akihiro Sasoh. "Laser impulse generation required for space debris deorbiting." In High-Power Laser Ablation 2004, edited by Claude R. Phipps. SPIE, 2004. http://dx.doi.org/10.1117/12.548136.

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BATTEZZATO, L., and R. PIAS. "Technology development required by propfan power reduction gearboxes." In 25th Joint Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1989. http://dx.doi.org/10.2514/6.1989-2818.

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Talaat, M. E. "Efficiencies and Required Power Extraction Ratios for Closed-Cycle MPD Power Systems." In 22nd Intersociety Energy Conversion Engineering Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-9297.

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Sprenger, Florian, Ørjan Selvik, Dariusz Fathi, Edvard Ringen, and Vahid Hassani. "Simulating Minimum Required Power and Manoeuvrability in Adverse Conditions." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23878.

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The 2002 IMO regulations regarding the turning, course keeping and stopping ability for vessels with a length greater than 100 m do not cover the presence of waves, wind and current. But their effects may significantly reduce the manoeuvring performance of ships, especially of smaller vessel types in shallow and restricted waters. Since January 2013, an additional IMO regulation is in force, covering the energy efficiency of ships by defining an Energy Efficiency Design Index (EEDI) that must not exceed a specified reference line for any new-built or converted vessel. The reference line to be met will successively be lowered in three steps. One way to meet the EEDI is a reduction of the installed power, which reduces the powering margin and may lead to significant safety issues for some ship types like smaller general cargo vessels since manoeuvring capabilities in adverse conditions might not be sufficient anymore. Due to the unpredictability of waves, a performance assessment is certainly not feasible in full scale and systematic model test series are time consuming and expensive. It is therefore of utmost importance to develop reliable and efficient software tools that are capable to simulate and predict the seakeeping and manoeuvring behaviour of a vessel at the design stage. In this paper, MARINTEK’s combined seakeeping/manoeuvring simulator VeSim is presented, calibrated and successfully validated by model tests with a general cargo vessel. In this software, the vessel hydrodynamics are solved taking care of both the seakeeping and maneuvering problems simultaneously. External forces result from waves, current and wind as well as from e.g. the propulsion system and mooring lines. The pre-calculated hydrodynamic properties of the vessel include speed-dependent resistance, maneuvering forces (mainly viscous), mass and restoring properties, damping and added mass properties (represented as retardation functions) and viscous roll damping. The maneuvering forces are calculated using current and wave particle velocities as input in addition to the ships velocities. A simulation study with VeSim is performed to find the minimum required power for advancing in head seas as a function of wave period and wave height for a general cargo vessel. In addition, two IMO standard manoeuvres — turning circles and 10°/10° zig-zag tests — are simulated in calm water as well as one regular wave condition in order to exemplify the capabilities of VeSim.
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Shishkov, E. M., A. V. Pronichev, and E. O. Soldusova. "Microgrid Energy Management System for Reducing Required Power Reserves." In 2019 International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE). IEEE, 2019. http://dx.doi.org/10.1109/reepe.2019.8708759.

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Eshghi, K., B. K. Johnson, and C. G. Rieger. "Metrics required for power system resilient operations and protection." In 2016 Resilience Week (RWS). IEEE, 2016. http://dx.doi.org/10.1109/rweek.2016.7573333.

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Popov, Alexander, Viktoriya Lapshina, Fernando Briz, and Igor Gulyaev. "Estimation of the Required Voltage for Improved MTPA Algorithm." In 2018 X International Conference on Electrical Power Drive Systems (ICEPDS). IEEE, 2018. http://dx.doi.org/10.1109/icepds.2018.8571887.

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Huppert, Carolin. "Required transmit power for broadcast systems with Tomlinson-Harashima-precoding." In 2008 IEEE Information Theory Workshop (ITW). IEEE, 2008. http://dx.doi.org/10.1109/itw.2008.4578652.

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Fujita, Satoshi, Keisuke Minagawa, and Takeshi Kodaira. "Required Properties of Seismic Isolation System for Nuclear Power Plants." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25409.

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In Japan, applications of seismic isolation systems to new generation nuclear power plants and fast breeder reactors have been expected in order to enhance seismic safety. However there are lots of restrictions for design of isolation systems, such as strong design seismic wave, deformation of piping between an isolated structure and a non-isolated structure, and so on. In addition combination of horizontal and vertical isolation has possibility to cause rocking motion if a three-dimensional isolation system is applied. Therefore isolation systems should be designed properly. Moreover the design of seismic isolation system has to consider influence on inner equipment and piping. This paper describes investigation regarding required properties and performance of seismic isolation system for nuclear power plants. The investigation is carried out by numerical analysis. In the analysis, various isolation devices such as friction pendulum bearings and so on are applied as well as natural rubber bearings.
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Reports on the topic "Required power"

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Yoshida, Isao, and Masaru Oka. Power feature required for PEFC powered electric propulsion ship. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/460231.

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Xu, J., and A. G. Ruggiero. A Possible Way to Reduce the Required Power of the Transverse Damping System. Office of Scientific and Technical Information (OSTI), August 1990. http://dx.doi.org/10.2172/1119330.

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Pfeiffer, Alexander, Cameron Hepburn, Adrien Vogt-Schilb, and Ben Caldecott. Committed Emissions from Existing and Planned Power Plants and Asset Stranding Required to Meet the Paris Agreement. Inter-American Development Bank, April 2018. http://dx.doi.org/10.18235/0001106.

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Iyer, Gokul C., Leon E. Clarke, James A. Edmonds, Gordon P. Kyle, Catherine M. Ledna, Haewon C. McJeon, and M. A. Wise. U.S. electric power sector transitions required to achieve 80% reductions in economy-wide greenhouse gas emissions: Results based on a state-level model of the U.S. energy system. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1355101.

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Allen, Luke, Joon Lim, Robert Haehnel, and Ian Dettwiller. Helicopter rotor blade multiple-section optimization with performance. Engineer Research and Development Center (U.S.), June 2021. http://dx.doi.org/10.21079/11681/41031.

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This paper presents advancements in a surrogate-based, rotor blade design optimization framework for improved helicopter performance. The framework builds on previous successes by allowing multiple airfoil sections to designed simultaneously to minimize required rotor power in multiple flight conditions. Rotor power in hover and forward flight, at advance ratio 𝜇 = 0.3, are used as objective functions in a multi-objective genetic algorithm. The framework is constructed using Galaxy Simulation Builder with optimization provided through integration with Dakota. Three independent airfoil sections are morphed using ParFoil and aerodynamic coefficients for the updated airfoil shapes (i.e., lift, drag, moment) are calculated using linear interpolation from a database generated using C81Gen/ARC2D. Final rotor performance is then calculated using RCAS. Several demonstrative optimization case studies were conducted using the UH-60A main rotor. The degrees of freedom for this case are limited to the airfoil camber, camber crest position, thickness, and thickness crest position for each of the sections. The results of the three-segment case study show improvements in rotor power of 4.3% and 0.8% in forward flight and hover, respectively. This configuration also yields greater reductions in rotor power for high advance ratios, e.g., 6.0% reduction at 𝜇 = 0.35, and 8.8% reduction at 𝜇 = 0.4.
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Luc, Brunet. Systematic Equations Handbook : Book 1-Energy. R&D Médiation, May 2015. http://dx.doi.org/10.17601/rd_mediation2015:1.

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The energy equation handbook is the complete collection of physically coherent expression of energy computed using from 2 to 7 physical units among: density(ML-3) energy (ML2T-2) time (T) force (MLT-2) power (ML2T-3) current (I) temperature (Th) quantity (N) mass (M) length (L) candela (J) surface (L2) volume (L3) concentration (ML-3) frequency (T-1) acceleration (LT- 2) speed (LT-1) pressure (ML-1T-2) viscosity (ML-1T-1) luminance (L- 2J) MolarMass (MN-1) MassicEnergy (L2T-2) resistance (ML2T-3I-2) voltage (ML2T-3I-1) Farad (M-1L-2T4I2) Thermal- Conductivity (MLT-3Th-1) SpecificHeat (L2T-2Th-1) MassFlux (MT-1) SurfaceTension (MT-2) Charge (TI) Resistivity (ML3T-3I-2) The complete list of 4196 equations is sorted by number of variable required to obtain an energy in Joules. All the units are in MKSA.
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DelCul, Guillermo Daniel, Rodney Dale Hunt, and Catherine H. Mattus. Prepare a conceptual design of the process and equipment that would be required to solidify UNF powder in a hot cell. Office of Scientific and Technical Information (OSTI), October 2018. http://dx.doi.org/10.2172/1479733.

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Elshurafa, Amro. The Value of Storage in Electricity Generation: A Qualitative and Quantitative Review. King Abdullah Petroleum Studies and Research Center, November 2020. http://dx.doi.org/10.30573/ks--2020-dp23.

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Electricity storage technology has many useful applications in the energy sector and can complement variable renewable power generation to achieve a low-carbon future. For policymakers, utilities, and investors, effective decisions in this context require an understanding of how to determine the monetary value of storage.
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Scartascini, Carlos, and Joanna Valle Luna. Research Insights: How Much Do We Trust Others in Latin America and the Caribbean?: The Role of Inequality and Perceptions. Inter-American Development Bank, March 2021. http://dx.doi.org/10.18235/0003136.

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Inclusive growth requires high levels of trust, both among individuals and in institutions, and trust is shaped by a variety of factors, including the distribution of income and wealth. This is problematic when that distribution is not perceived as legitimate. Latin America and the Caribbean has traditionally been a highly unequal region. Inequality might be associated with lower trust because it reflects an unequal distribution of power, as those at the top can use the states coercive power to benefit themselves at the expense of others. Inequality nonetheless tends to be wrongly estimated, as most people do not accurately estimate their countrys income and wealth distribution, or their position within.
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Bendixen, Shannon, Michael Campbell, Corey Criswell, and Roland Smith. Change-Capable Leadership The Real Power Propelling Successful Change. Center for Creative Leadership, 2017. http://dx.doi.org/10.35613/ccl.2017.2049.

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If you could ask 275 senior executive leaders about how to lead change, what would they have to say? What if they talked about the most important factors for success, what you should do more of, do less of, or avoid all together? What if their experiences could help you lead change in your organization and provide an early warning system to avoid failure? Do we have your attention? If you are a leader facing complex business challenges in your organization that require changes in the way people have always done things, we offer the following insights from the senior executives we asked about their experiences in leading change: 1. Change yourself. Leading change successfully means spending time outside of your comfort zone. As the individual leading an initiative you must change your mindset, actions, and behaviors. 2. Don’t go it alone. Leading change is a team activity. People come together driven by a compelling, and frequently communicated, message about why we are changing. 3. Know the signs . Recognize the early warning signs that indicate an initiative is starting to derail.
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