Introducing an integrated SOFC,linear Fresnel solar field,Stirling engine and steam turbine combined cooling,heating and power process |
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| Affiliation: | 1. Department of Energy Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran;1. School of Mechanical Engineering, Shiraz University, Shiraz, Iran;2. Academy of Sciences, Iran;1. Department of Renewable Energies and Environment, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran;2. Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies, Amol, Iran;1. Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran;2. Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies, Amol, Iran;1. Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran;2. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario L1H 7K4, Canada;1. Energy Institute, TUBITAK Marmara Research Center, P.O. Box 21, Gebze, Kocaeli, 41470, Turkey;2. Mechanical Engineering Department, Faculty of Engineering, Gebze Technical University, 41400 Gebze, Kocaeli, Turkey;3. Energy Division, Mechanical Engineering Department, Faculty of Engineering, Recep Tayyip Erdogan University, Fener Campus, Rize, 53100, Turkey |
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| Abstract: | A new integrated combined cooling, heating and power system which includes a solid oxide fuel cell, Stirling engine, steam turbine, linear Fresnel solar field and double effect absorption chiller is introduced and investigated from energy, exergy and thermodynamic viewpoints. In this process, produced electrical power by the fuel cell and steam turbines is 6971.8 kW. Stirling engine uses fuel cell waste heat and produces 656 kW power. In addition, absorption chiller is driven by waste heat of the Stirling engine and generates 2118.8 kW of cooling load. Linear Fresnel solar field produces 961.7 kW of thermal power as a heat exchanger. The results indicate that, electrical, energy and exergy efficiencies and total exergy destruction of the proposed system are 49.7%, 67.5%, 55.6% and 12560 kW, respectively. Finally, sensitivity analysis to investigate effect of the different parameters such as flow rate of inputs, outlet pressure of the components and temperature changes of the solar system on the hybrid system performance is also done. |
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| Keywords: | Solid oxide fuel cell Linear Fresnel solar field Stirling engine Combined cooling Heating and power process |
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