{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T00:42:37Z","timestamp":1768351357513,"version":"3.49.0"},"reference-count":27,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2009,11,6]],"date-time":"2009-11-06T00:00:00Z","timestamp":1257465600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>The benefits are demonstrated of using exergy to understand the efficiencies of electrical power technologies and to assist improvements. Although exergy applications in power systems and electrical technology are uncommon, exergy nevertheless identifies clearly potential reductions in thermodynamic losses and efficiency improvements. Various devices are considered, ranging from simple electrical devices to generation systems for electrical power and for multiple products including electricity, and on to electrically driven. The insights provided by exergy are shown to be more useful than those provided by energy, which are sometimes misleading. Exergy is concluded to have a significant role in assessing and improving the efficiencies of electrical power technologies and systems, and provides a useful tool for engineers and scientists as well as decision and policy makers.<\/jats:p>","DOI":"10.3390\/e11040820","type":"journal-article","created":{"date-parts":[[2009,11,6]],"date-time":"2009-11-06T12:33:39Z","timestamp":1257510819000},"page":"820-835","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":80,"title":["Using Exergy to Understand and Improve the Efficiency of Electrical Power Technologies"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6559-0094","authenticated-orcid":false,"given":"Marc A.","family":"Rosen","sequence":"first","affiliation":[{"name":"Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, L1H 7K4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cornelia Aida","family":"Bulucea","sequence":"additional","affiliation":[{"name":"Faculty of Electromechanical and Environmental Engineering, University of Craiova, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2009,11,6]]},"reference":[{"key":"ref_1","unstructured":"Moran, M.J. (1989). Availability Analysis: A Guide to Efficient Energy Use, American Society of Mechanical Engineers. [revised ed.]."},{"key":"ref_2","unstructured":"Kotas, T.J. (1995). The Exergy Method of Thermal Plant Analysis, Krieger. [reprint ed.]."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1115\/1.2906818","article-title":"Exergy analysis: principles and practice","volume":"116","author":"Moran","year":"1994","journal-title":"J. Eng. Gas Turb. Power"},{"key":"ref_4","unstructured":"Szargut, J., Morris, D.R., and Steward, F.R. (1988). Exergy Analysis of Thermal, Chemical and Metallurgical Processes, Hemisphere."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"709","DOI":"10.1016\/0360-5442(80)90090-0","article-title":"International progress in second law analysis","volume":"5","author":"Szargut","year":"1980","journal-title":"Energy"},{"key":"ref_6","unstructured":"Edgerton, R.H. (1992). Available Energy and Environmental Economics, D.C. Heath."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Dincer, I., and Rosen, M.A. (2007). Exergy: Energy, Environment and Sustainable Development, Elsevier.","DOI":"10.1016\/B978-008044529-8.50006-9"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Sato, N. (2005). Chemical Energy and Exergy: An Introduction to Chemical Thermodynamics for Engineers, Elsevier.","DOI":"10.1016\/B978-044451645-9\/50010-8"},{"key":"ref_9","unstructured":"Brodyanski, V.M., Sorin, M.V., and Le Goff, P. (1994). The Efficiency of Industrial Processes: Exergy Analysis and Optimization, Elsevier."},{"key":"ref_10","unstructured":"Yantovskii, E.I. (1994). Energy and Exergy Currents: An Introduction to Exergonomics, Nova Science Publishers."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1504\/IJEX.2005.006429","article-title":"Fuzzy thermoeconomic optimization","volume":"2","author":"Mazur","year":"2005","journal-title":"Int. J. Exergy"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2743","DOI":"10.1016\/S0196-8904(03)00047-5","article-title":"Thermoeconomic analysis of power plants: An application to a coal-fired electrical generating station","volume":"44","author":"Dincer","year":"2003","journal-title":"Energ. Conver. Manage."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1016\/S0921-3449(96)01180-9","article-title":"Two aspects of consumption: Using an exergy-based measure of degradation to advance the theory and implementation of industrial ecology","volume":"19","author":"Connelly","year":"1997","journal-title":"Resour. Conserv. Recycl."},{"key":"ref_14","unstructured":"Szargut, J. (2005). Exergy Method: Technical and Ecological Applications, WIT Press."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1153","DOI":"10.1002\/(SICI)1099-114X(19991025)23:13<1153::AID-ER545>3.0.CO;2-Y","article-title":"Exergy analysis of waste emissions","volume":"23","author":"Dincer","year":"1999","journal-title":"Int. J Energ. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1016\/S1164-0235(01)00024-3","article-title":"Energy- and exergy-based comparison of coal-fired and nuclear steam power plants","volume":"1","author":"Rosen","year":"2001","journal-title":"Exergy"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/j.applthermaleng.2004.05.008","article-title":"Efficiency analysis of a cogeneration and district energy system","volume":"25","author":"Rosen","year":"2005","journal-title":"Appl. Therm. Eng."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1016\/S1164-0235(01)00017-6","article-title":"Exergy analysis of a fuel cell power system for transportation applications","volume":"1","author":"Cownden","year":"2001","journal-title":"Exergy"},{"key":"ref_19","unstructured":"Sealed Lead Acid Battery Application, Transtronics, Inc.. Available online: http:\/\/xtronics.com\/reference\/batterap.htm."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Hau, E. (2006). Wind Turbines: Fundamentals, Technologies, Application, Economics, Springer. [2nd ed.].","DOI":"10.1007\/3-540-29284-5"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1109\/TEC.2006.875476","article-title":"Comparison of direct-drive and geared generator concepts for wind turbines","volume":"21","author":"Polinder","year":"2006","journal-title":"IEEE Trans. Energy Convers."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"425","DOI":"10.1002\/pip.781","article-title":"Solar cell efficiency tables (version 30)","volume":"15","author":"Green","year":"2007","journal-title":"Progress in Photovoltaics: Research and Applications"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1063\/1.2718755","article-title":"Solar energy conversion","volume":"60","author":"Crabtree","year":"2007","journal-title":"Phys. Today"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1557\/mrs2008.91","article-title":"Solid-state lighting","volume":"33","author":"Humphreys","year":"2008","journal-title":"MRS Bull."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1016\/j.enconman.2008.09.010","article-title":"Exergy analysis of variable air volume systems for an office building","volume":"50","author":"Wei","year":"2009","journal-title":"Energ. Conv. Manage."},{"key":"ref_26","unstructured":"Mohan, N., Undeland, T.M., and Robbins, W.P. (1997). Power Electronics, Converters, Applications and Design, John Wiley & Sons. [2nd ed.]."},{"key":"ref_27","unstructured":"Perticaroli, F. (1994). Sistemi Elettrici per i Transporti: Trazione Elettrica (Electrical Systems for Transportation: Electric Traction), MASSON Publishing House."}],"container-title":["Entropy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1099-4300\/11\/4\/820\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T22:11:34Z","timestamp":1760220694000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1099-4300\/11\/4\/820"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,11,6]]},"references-count":27,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2009,12]]}},"alternative-id":["e11040820"],"URL":"https:\/\/doi.org\/10.3390\/e11040820","relation":{},"ISSN":["1099-4300"],"issn-type":[{"value":"1099-4300","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,11,6]]}}}