IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)最新文献

Dynamic driving cycle analyses using electric vehicle time-series data 基于时间序列数据的电动汽车动态行驶工况分析

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.656736

M. Staackmann, B. Liaw, Du Yun

{"title":"Dynamic driving cycle analyses using electric vehicle time-series data","authors":"M. Staackmann, B. Liaw, Du Yun","doi":"10.1109/IECEC.1997.656736","DOIUrl":"https://doi.org/10.1109/IECEC.1997.656736","url":null,"abstract":"Dynamic analyses of time-series data collected from real-world driving-cycle field testing of electric vehicles is providing evidence that certain driving-cycle conditions can significantly impact vehicle performance. In addition, vehicle performance results derived from time-series data show relationships that help to characterize driving cycles. Such findings confirm the advantages of time-series data over statistical data, in allowing correlation of vehicle performance characteristics with driving cycles. The driving-cycle vehicle performance analyses were performed using time-series data collected at the Electric and Hybrid Vehicle (EHV) National Data Center (NDC). A total of 71 EHVs are registered in the NDC and over 4000 trips files have already been uploaded into the NDC database, as of May 1997. Numerous EHVs on multiple trips have been analyzed over the past two years. This paper presents the results of time-series data collected and analyzed for two specific vehicles of the overall program, to illustrate the value of time-series data. We examined specific parameters such as average vehicle speed, number of stops during a trip, average distance traveled between stops, vehicle acceleration, and average DC kWh consumed per kilometer. Correlation among various parameters is presented in relationship to three driving cycles (highway, suburban, and urban), along with suggested ranges of parametric values defining the regimes of the different cycles.","PeriodicalId":183668,"journal":{"name":"IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117108566","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: 22

The effect of exhaust gas recirculation on the combustion noise level of an indirect injection diesel engine 废气再循环对间接喷射柴油机燃烧噪声的影响

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.656749

C. Bowen, G. Reader, I. Potter

引用次数: 2

Variable displacement vane pump 可变排量叶片泵

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.659277

J. Tschantz, B. Bisson

{"title":"Variable displacement vane pump","authors":"J. Tschantz, B. Bisson","doi":"10.1109/IECEC.1997.659277","DOIUrl":"https://doi.org/10.1109/IECEC.1997.659277","url":null,"abstract":"A Defense Advanced Research Projects Agency (DARPA) Technology Reinvestment Program (TRP) entitled \"Electronically Controlled Variable Displacement Vane Pump\" successfully demonstrated the pump's advantage of high efficiency and reliability in a lightweight, compact design. What has been developed under this program is a pumping system which can vary the amount of fuel delivered according to engine needs, thereby reducing the temperature rise of the fuel to very low levels. This permits the elimination of the air/oil coolers and conserves the vital airflow through the fan. The variable displacement vane pump (VDVP) also permits a substantial simplification of the control system with the elimination of complex metering valves, offering a significant reduction in fuel system cost. This program was initiated to develop a technology that embodied the ruggedness of the gear pump with the efficiency and metering versatility of the variable displacement vane pump. Thick metal vanes emulate the teeth on pumping gears while the simple, elegant swing cam feature provides the variable displacement capability without the unwieldy multiple cam segments found in other concepts. The result is a pumping architecture which is rugged, light in weight and extremely versatile, having demonstrated superb heat management and controllability in extensive bench and engine testing. This paper reports the results that the pumps have achieved to date both in terms of durability and efficiency.","PeriodicalId":183668,"journal":{"name":"IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115456713","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

Advanced binary cycles: optimum working fluids 先进的二元循环:最佳的工作流体

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.656697

K. Gawlik, V. Hassani, K. Gawlik, V. Hassani

{"title":"Advanced binary cycles: optimum working fluids","authors":"K. Gawlik, V. Hassani, K. Gawlik, V. Hassani","doi":"10.1109/IECEC.1997.656697","DOIUrl":"https://doi.org/10.1109/IECEC.1997.656697","url":null,"abstract":"A computer model (Cycle Analysis Simulation Tool, CAST) and a methodology have been developed to perform value analysis for small, low- to moderate-temperature binary geothermal power plants. The value analysis method allows for incremental changes in the levelized electricity cost (LEC) to be determined between a baseline plant and a modified plant. Thermodynamic cycle analyses and component sizing are carried out in the model followed by economic analysis which provides LEC results. The emphasis of the present work is on evaluating the effect of mixed working fluids instead of pure fluids on the LEC of a geothermal binary plant that uses a simple organic Rankine cycle. Four resources were studied spanning the range of 265/spl deg/F to 375/spl deg/F. A variety of isobutane and propane based mixtures, in addition to pure fluids, were used as working fluids. This study shows that the use of propane mixtures at a 265/spl deg/F resource can reduce the LEC by 24% when compared to a base case value that utilizes commercial isobutane as its working fluid. The cost savings drop to 6% for a 375/spl deg/F resource, where an isobutane mixture is favored. Supercritical cycles were found to have the lowest cost at all resources.","PeriodicalId":183668,"journal":{"name":"IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116748584","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: 42

Thermal analysis of the Ultralife SSS/sup TM/ lithium ion solid polymer battery with high energy anode for dual use applications 双负极Ultralife SSS/sup TM/锂离子固体聚合物电池的热分析

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.661886

R.P. Hollandsworth, M. Isaacson, E. A. Cuellar, J. Read

引用次数: 5

PX series AMTEC cell design, testing, and analysis PX系列AMTEC电芯设计、测试、分析

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.661939

C. Borkowski, R. Sievers, T.J. Hendricks

引用次数: 3

Reaction durability of a magnesium oxide/water chemical heat pump system 氧化镁/水化学热泵系统的反应耐久性

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.661947

Y. Kato, Wataru Nanmoku, F. Takahashi, Y. Yoshizawa

引用次数: 1

Hydrogen generation for fuel-cell power systems by high-pressure catalytic methanol-steam reforming 高压催化甲醇-蒸汽重整制氢燃料电池动力系统

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.661876

B. Peppley, J. C. Amphlett, L. M. Kearns, R. Mann, P. Roberge

{"title":"Hydrogen generation for fuel-cell power systems by high-pressure catalytic methanol-steam reforming","authors":"B. Peppley, J. C. Amphlett, L. M. Kearns, R. Mann, P. Roberge","doi":"10.1109/IECEC.1997.661876","DOIUrl":"https://doi.org/10.1109/IECEC.1997.661876","url":null,"abstract":"Results of kinetic studies of methanol-steam reforming on a commercial low-temperature shift catalyst, BASF K3-110, are reported. A comprehensive Langmuir-Hinshelwood kinetic model of methanol-steam reforming on Cu/ZnO/Al/sub 2/O/sub 3/ catalyst was used to simulate a methanol-steam reformer operating at pressures up to 45 bar. At constant temperature and steam-to-methanol ratio, increasing the pressure results in an increase in the initial rate of the reaction and a corresponding improvement in reformer performance. This is partially offset as the equilibrium conversion decreases with increasing pressure. The rate of reaction is highest at low conversion. The result is that there is a large heat demand near the entrance of the catalyst bed which causes a strong endothermic effect and a corresponding temperature minimum. In the worst case, this temperature minimum can be below the dew-point temperature of the operating fluid causing a loss in reformer performance due to condensation in the pores of the catalyst. The situation is exacerbated by the potential for thermal damage to other regions of the catalyst bed if the heating temperature is increased to overcome the endothermic effect. Catalyst deactivation at elevated pressures was also studied in an 80 hour experiment at 260/spl deg/C. Increasing the operating pressure did not accelerate the rate of deactivation for the typical gas compositions encountered during normal reformer operation. Catalyst selectivity improved at lower conversion due to kinetic effects.","PeriodicalId":183668,"journal":{"name":"IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132940436","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: 13

AMTEC radioisotope power system design and analysis for Pluto Express Fly-By 冥王星快车飞掠的AMTEC放射性同位素动力系统设计与分析

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.659240

T.J. Hendricks, Chendong Huang, R. Sievers

{"title":"AMTEC radioisotope power system design and analysis for Pluto Express Fly-By","authors":"T.J. Hendricks, Chendong Huang, R. Sievers","doi":"10.1109/IECEC.1997.659240","DOIUrl":"https://doi.org/10.1109/IECEC.1997.659240","url":null,"abstract":"The Pluto Express Fly-By program requires a radioisotope power system (RPS) to supply spacecraft power for various internal functions and mission instruments and experiments. AMTEC (alkali-metal thermoelectric conversion) power conversion is the DOE-selected technology for an advanced, high-efficiency RPS to power the Pluto Express Fly-By spacecraft. An AMTEC-based RPS using the general purpose heat source (GPHS) has been conceptually designed to satisfy the Pluto Express power requirements. Integrated AMTEC cell and system thermal/electrical design analyses, structural design analyses and mass analyses were performed to define an optimum system design. Using fresh radioisotope fuel at beginning of mission, the RPS produces 102 watts of power, has a mass of 8.35 kg (specific power density=12.2 watts/kg), with a system conversion efficiency of 20.3%. Mass/power scale-up estimates have also been generated, indicating that a 150-watt version of this RPS would weigh approximately 11.3 kg. This paper presents and discusses the key features of this RPS design, the design and analysis methodology, and the numerous system and AMTEC cell tradeoff studies establishing the optimum AMTEC-based RPS.","PeriodicalId":183668,"journal":{"name":"IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133534924","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: 12

The Meteosat Second Generation (MSG) power system 气象卫星第二代(MSG)动力系统

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI: 10.1109/IECEC.1997.659247

J. Haines, D. Levins, A. Robben, A. Sepers

{"title":"The Meteosat Second Generation (MSG) power system","authors":"J. Haines, D. Levins, A. Robben, A. Sepers","doi":"10.1109/IECEC.1997.659247","DOIUrl":"https://doi.org/10.1109/IECEC.1997.659247","url":null,"abstract":"Under the direction of the European Meteorological Satellite Organisation (EUMETSAT) and the European Space Agency (ESA), space industries within Europe are in the process of developing a new series of larger and more performant geostationary weather satellites. The initial three spacecraft within this new series, which are known by the name of Meteosat Second Generation (MSG), are due to be progressively launched as from the year 2000 onwards. The major objective of this mission is the continuation of the European weather watch and space borne atmospheric sensing services provided by the present series of Meteosat spacecraft. To satisfy this mission requirement, the payload compliment to be supported by MSG will be consist of a comprehensive earth viewing instrument capable of operating in both the infra-red and visible spectrum, an Earth radiation measurement system and a search and rescue facility. In furnishing the power needs for these payloads, the power generating element on the spin stabilised MSG spacecraft consists of a body mounted solar array, capable of providing 628 watts of electrical power at the end of seven years of geosynchronous orbital lifetime. The energy storage elements for the spacecraft consists of two, 29 ampere-hour batteries, whilst centralised power management is achieved by the power control unit, which satisfies the payload and battery re-charge demands by controlling the available solar array power. Power distribution for the spacecraft electrical loads and heaters is achieved by the power distribution unit and for the pyrotechnic devices by the pyrotechnic release unit.","PeriodicalId":183668,"journal":{"name":"IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)","volume":"246 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115206002","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