Volume 19, Issue 11 (November 2019)                   Modares Mechanical Engineering 2019, 19(11): 2737-2749 | Back to browse issues page

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Jhandydied S, Hassanzadeh H, Shakib S. The Energy and Exergy Analysis of a Solid Oxide Fuel Cell and Gas Turbine for Desalination System. Modares Mechanical Engineering. 2019; 19 (11) :2737-2749
URL: http://mme.modares.ac.ir/article-15-22895-en.html
1- Mechanical Deparment, Engineering Faculty, University of Birjand, Birjand, Iran
2- Mechanical Deparment, Engineering Faculty, University of Birjand, Birjand, Iran , h.hassanzadeh@birjand.ac.ir
3- Mechanical Department, Engineering Faculty, Bozorgmehr University of Qaenat, Qaen, Iran
Abstract:   (1253 Views)
In this study, a hybrid system of fuel cell/gas turbine was designed and simulated with the aim of coupling with desalination systems. This system was analyzed from the viewpoints of the first and second law of thermodynamics. A parametric analysis was also performed to the determination of the system optimal performance. The studied parameters are fuel utilization factor, compressor pressure ratio, pre-reforming percentage, and the steam to carbon ratio. The results show that for the design parameters, the net power is 1215kW, the overall efficiency is 81.65% and the exergy efficiency is 60.7%. Also, by analyzing the rate of exergy destruction, it has been determined that the stack of fuel cells, combustion chamber, and pre-reforming have the most part in the destruction of exergy. Parametric analysis results show that increases in pressure, pre-reforming percentage, and fuel utilization factor have a positive effect on the system performance to a certain extent and the suitable ranges of the fuel utilization factor are from 0.8 to 0.85. On the other hand, by analyzing the effect of pressure and temperature on the system, it is determined that the temperature of the fuel cell cannot be constant. It was also shown that the efficiency of the system decreases with increasing steam to carbon ratio.
Full-Text [PDF 1065 kb]   (498 Downloads)    
Article Type: Original Research | Subject: Fuel Cell
Received: 2018/07/9 | Accepted: 2019/05/21 | Published: 2019/11/21

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