Conventional and advanced exergoeconomic assessments of a CCHP and MED system based on solid oxide fuel cell and micro gas turbine |
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| Affiliation: | 1. Faculty of Mechanical Engineering, “W” Building, Central Campus, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, Mexico;2. University of Guanajuato, Electrical Engineering Department, Carretera Salamanca – Valle de Santiago km 3.5 + 1.8 km, Comunidad de Palo Blanco, Salamanca, Guanajuato, Mexico;1. College of Machinery and Transportation Engineering, China University of Petroleum, Beijing, 102249, PR China;2. Beijing Key Laboratory of Process Fluid Filtration and Separation, Beijing, 102249, PR China;1. School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, M1 7DN Manchester, United Kingdom;1. School of Energy and Power Engineering, Shandong University, Jinan 250061, China;2. School of Control Science and Engineering, Shandong University, Jinan 250061, China;1. College of Machinery and Transportation Engineering, China University of Petroleum, Beijing, 102249, Peoples'' Republic of China;2. Beijing Key Laboratory of Process Fluid Filtration and Separation, Beijing, 102249, Peoples'' Republic of China |
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| Abstract: | This paper presents an assessment of a combined cooling, heating and power (CCHP) and multi-effect desalination (MED) system based on SOFC/MGT by conventional and advanced exergoeconomic analyses. The conventional exergy analysis can reveal the sources of irreversibility in the system. The largest exergy destruction occurs in after burner followed by SOFC and MED, accounting for 20.079%, 12.986%, 12.907%, respectively. In the advanced analysis, the exergy destruction, exergy destruction cost and investment cost are split into avoidable/unavoidable and endogenous/exogenous parts to investigate the real potentials of exergy and economic performances. The advanced analysis results indicate that the major exergy destructions of most components are endogenous parts with inverter, MGT and air compressor owning the most potentials to reduce exergy destructions. The modified exergy efficiency of each component in the advanced analysis is higher than the conventional one. Finally, three possible strategies are suggested to reduce the avoidable exergy destruction cost rates. |
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| Keywords: | CCHP Solid oxide fuel cell Micro gas turbine Multi-effect desalination Advanced exergoeconomic analysis |
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