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Energy Conversion最新文献

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Interregional energy substitution in manufacturing in the United States 美国制造业的区域间能源替代
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90013-5
Noel D. Uri
{"title":"Interregional energy substitution in manufacturing in the United States","authors":"Noel D. Uri","doi":"10.1016/0013-7480(79)90013-5","DOIUrl":"10.1016/0013-7480(79)90013-5","url":null,"abstract":"<div><p>This paper applies a translog price possibility frontier to a pooled sample in order to measure the extent of energy substitution effects in manufacturing industries. The results clearly indicate that relative changes in energy prices have significant effects on consumption. This, in turn, has important implications for public policy. In particular, the market system appears better able to deal with exogenous shifts in energy supplies than has frequently been assumed in the formulation of public policies toward the energy crisis.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 1","pages":"Pages 25-31"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90013-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72932830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Simulation studies of the basic non-linear effects of wave-energy conversion by an overtopping water-column 超顶水柱波能转换基本非线性效应的模拟研究
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90017-2
G.F. Knott, J.O. Flower
{"title":"Simulation studies of the basic non-linear effects of wave-energy conversion by an overtopping water-column","authors":"G.F. Knott,&nbsp;J.O. Flower","doi":"10.1016/0013-7480(79)90017-2","DOIUrl":"10.1016/0013-7480(79)90017-2","url":null,"abstract":"<div><p>Several forms of wave-energy devices are currently being developed which incorporate oscillating ducted-flows. A method of extracting energy from such flows has been suggested whereby fluid is allowed to spill over from the top end of the duct during some portion of the oscillatory cycle into an elevated reservoir from whence it is directed through a low-head turbine.</p><p>A mathematical model of this energy conversion system has been derived for simulation on a digital computer; and the results of the analysis are presented here in terms of the efficiency of operation relative to the optimum linear case. The simulation is repeated for a wide range of input conditions and operating parameters. The conclusions drawn from this work may be seen to have a wider application in the field of non-linear energy exchange in resonant mechanical systems.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 1","pages":"Pages 59-69"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90017-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74410806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Critique on the solar rehabilitation procedures used in SOLMET-2 对SOLMET-2中使用的太阳能修复程序的评论
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90006-8
Donald Rapp
{"title":"Critique on the solar rehabilitation procedures used in SOLMET-2","authors":"Donald Rapp","doi":"10.1016/0013-7480(79)90006-8","DOIUrl":"10.1016/0013-7480(79)90006-8","url":null,"abstract":"<div><p>A critique of the NOAA procedure for rehabilitation of solar data is given by comparing recent data on clear solar noon atmospheric transmission with the calculated transmissions used in the rehabilitation process. It is found that the standard year irradiance (SYI) method used by NOAA is generally within about 3% of the data except for sites at high latitude in winter. The SYI values are too low at such sites, the worst case being Seattle where winter insolation is underestimated by over 20%. The overall assessment of the NOAA rehabilitation procedures at most sites is that the final result: standard year corrected data provide a reasonable set of consistent values. However, the data at northerly sites are too low.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 2","pages":"Pages 101-110"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90006-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81077766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Model of photofuel element on the base of chlorophyll sensitized reactions 基于叶绿素敏化反应的光燃料元件模型
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90002-0
E.Yu. Katz, Yu.N. Kozlov, B.A. Kiselev
{"title":"Model of photofuel element on the base of chlorophyll sensitized reactions","authors":"E.Yu. Katz,&nbsp;Yu.N. Kozlov,&nbsp;B.A. Kiselev","doi":"10.1016/0013-7480(79)90002-0","DOIUrl":"10.1016/0013-7480(79)90002-0","url":null,"abstract":"<div><p>Photogalvanic effect has been studied in ethanol-aqueous solution containing: 1 × 10<sup>−3</sup> M cysteine, 5 × 10<sup>−5</sup> M chlorophyll ‘A’ and 1 × 10<sup>−4</sup> M methylviologen. During photosensitized reduction of methylviologen open-circuit photovoltage was −650 mV and short-circuit photocurrent was 100 μA/cm<sup>2</sup>. The maximum power output from the photogalvanic element was 2 × 10<sup>−5</sup> W at load resistance 6 kΩ. Principal differences and advantages of investigated triple photochemical system have been discussed as compared with double photochemical systems consisting of pigment and electron donor. Since the power output from the element consists of absorbed light power and power of electron donor oxidation, such electricity source may be called ‘photofuel element’. The possibility of application of the investigated photochemical system for creation of high efficiency photoelectroconverters of solar energy has been suggested.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 2","pages":"Pages 73-75"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90002-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73114703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Fast transient behavior of thermoelectric coolers with high current pulse and finite cold junction 具有强电流脉冲和有限冷结的热电冷却器的快速瞬态行为
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90023-8
Richard L. Field , Harold A. Blum
{"title":"Fast transient behavior of thermoelectric coolers with high current pulse and finite cold junction","authors":"Richard L. Field ,&nbsp;Harold A. Blum","doi":"10.1016/0013-7480(79)90023-8","DOIUrl":"https://doi.org/10.1016/0013-7480(79)90023-8","url":null,"abstract":"","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 3","pages":"159-165"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90023-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72292667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
A novel thermal engine using metal hydride 一种新型金属氢化物热机
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90016-0
Kei Nomura, Yoshihiko Ishido, Shuichiro Ono
{"title":"A novel thermal engine using metal hydride","authors":"Kei Nomura,&nbsp;Yoshihiko Ishido,&nbsp;Shuichiro Ono","doi":"10.1016/0013-7480(79)90016-0","DOIUrl":"https://doi.org/10.1016/0013-7480(79)90016-0","url":null,"abstract":"<div><p>A unique and compact prototype piston engine using LaNi<sub>5</sub>H<sub><em>x</em></sub> as an energy conversion medium, was developed.</p><p>It consists of two metal hydride containers, each having about 700 g (1.6 moles) of LaNi<sub>5</sub>H<sub><em>x</em></sub> powder, a cylinder and piston, and two electromagnetic valves which work and synchronize with the movement of the piston. When one of the containers was heated in a hot water bath (80°C) and the other was cooled down to 20°C, the piston was kept working by the hydrogen pressure difference of about 10 kg/cm<sup>2</sup> between them. On the average, 28 W of mechanical power output was generated for two minutes.</p><p>The theoretical conversion efficiency is 15.5%, and the roughly estimated experimental value is 7.7%.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 1","pages":"Pages 49-57"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90016-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90020773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Power output of an MHD generator: Effect of ionization instability and boundary layer MHD发电机的输出功率:电离不稳定性和边界层的影响
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90008-1
M.S. Sodha, B.K. Gupta
{"title":"Power output of an MHD generator: Effect of ionization instability and boundary layer","authors":"M.S. Sodha,&nbsp;B.K. Gupta","doi":"10.1016/0013-7480(79)90008-1","DOIUrl":"10.1016/0013-7480(79)90008-1","url":null,"abstract":"<div><p>This paper presents an investigation of the effect of ionization instability on effective conductivity and power output of an MHD generator in the presence of velocity/temperature boundary layer. Analysis is based on a phenomenological approach. It is concluded that the ratio of power output (in the presence of ionization instability) to the power output (without ionization instability) increases with an increase in the boundary layer thickness. Effective conductivity and power output both are found to decrease with the increasing magnetic field.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 2","pages":"Pages 119-124"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90008-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82156694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Improvement of characteristics of nonequilibrium MHD generator by applying current parallel to magnetic field 用电流并联磁场改善非平衡MHD发电机特性
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90005-6
D. Tanaka, Y. Hattori
{"title":"Improvement of characteristics of nonequilibrium MHD generator by applying current parallel to magnetic field","authors":"D. Tanaka,&nbsp;Y. Hattori","doi":"10.1016/0013-7480(79)90005-6","DOIUrl":"10.1016/0013-7480(79)90005-6","url":null,"abstract":"<div><p>Quasi three-dimensional analysis is made to estimate effects of applied current parallel to magnetic field on the characteristics of nonequilibrium Faraday MHD generator. Potassium-seeded argon plasma at 1500 K and 10 atm is assumed. Resistive power-extraction electrode is taken into account to reduce the current concentration phenomena occurring at electrode edges. The applied current parallel to magnetic field enlarges the stable region free from ionization instability. The net output power exceeds the power obtained for the case of no applied current in the limited ranges of applied current and Hall parameter. The resistive power-extraction electrode is useful to successfully prevent the applied current from short-circuiting along the electrode surface.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 2","pages":"Pages 91-99"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90005-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"101905961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Performance of a collector/storage solar water heater 集热器/蓄热式太阳能热水器的性能
Energy Conversion Pub Date : 1979-01-01 DOI: 10.1016/0013-7480(79)90015-9
M.S. Sodha, J.K. Nayak, S.C. Kaushik, S.P. Sabberwal, M.A.S. Malik
{"title":"Performance of a collector/storage solar water heater","authors":"M.S. Sodha,&nbsp;J.K. Nayak,&nbsp;S.C. Kaushik,&nbsp;S.P. Sabberwal,&nbsp;M.A.S. Malik","doi":"10.1016/0013-7480(79)90015-9","DOIUrl":"10.1016/0013-7480(79)90015-9","url":null,"abstract":"<div><p>This communication presents an improved analysis of a collector/storage solar water heater, proposed by Garg [1], which is in close agreement with the experiments of Garg [1] and the authors. The heater consists essentially of an insulated rectangular tank whose top surface is suitably blackened and glazed. After collection of solar energy during day the heater can store a substantial amount of heat for an appreciable time if the top glass is vovered by adequate insulation (assumed to be of the same thickness as the insulation below the tank) during the night. Expressions for the transient temperature of the water in the tank have been derived. The authors have recorded the hourly variation of temperature of the water in the tank. These experimental results as well as those of Garg [1] have been found to be in close agreement with the theory presented in this paper.</p></div>","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"19 1","pages":"Pages 41-47"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(79)90015-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86543023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
Comment on investigation of some factors limiting enthalpy extraction of MHD-generators mdd发生器焓萃取限制因素研究述评
Energy Conversion Pub Date : 1978-01-01 DOI: 10.1016/0013-7480(78)90082-7
J. Batenburg, A. Veefkind
{"title":"Comment on investigation of some factors limiting enthalpy extraction of MHD-generators","authors":"J. Batenburg,&nbsp;A. Veefkind","doi":"10.1016/0013-7480(78)90082-7","DOIUrl":"10.1016/0013-7480(78)90082-7","url":null,"abstract":"","PeriodicalId":100466,"journal":{"name":"Energy Conversion","volume":"18 1","pages":"Page 9"},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7480(78)90082-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81536020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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