International Journal of Energy Science and Engineering
Articles Information
International Journal of Energy Science and Engineering, Vol.1, No.1, Mar. 2015, Pub. Date: Mar. 21, 2015
Optimization of a Renewable Hybrid System Including an Absorption Chiller, Fuel Cell and Solar Panel by Exergy Analysis
Pages: 13-23 Views: 2657 Downloads: 1441
[01] N. Enadi, Abbaspour College of Technology, Shahid Beheshti University, Tehran, Iran.
[02] M. Tahani, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
[03] P. Ahmadi, uel Cell Research Lab (FCReL), School of Mechatronic System Engineering, Simon Fraser University, Vancouver, Canada.
[04] K. Rahmani, Abbaspour College of Technology, Shahid Beheshti University, Tehran, Iran.
[05] K. Keramati, Automotive Department, Iran University of Science and Technology, Tehran, Iran.
[06] T. Sokhansefat, Abbaspour College of Technology, Shahid Beheshti University, Tehran, Iran.
This research paper mainly deals with thermodynamic modeling, exergy analysis and optimization of a hybrid energy system consisting of a solar PV/T panel, PEM electrolysis, and a polymer electrolyte membrane (PEM) fuel cell and single effect Li-Br absorption chiller. Hydrogen is produced in this cycle using the electricity generated by PV/T panel and it is then stored in storage tank for later use at night when the sun is not available there. Hence, this hybrid cycle can be used during a day. In order to enhance understanding and to see how different design parameters affect the system performance, a comprehensive parametric study is conducted and the results are reported accordingly. The effects of fuel cell current density on system efficiency, work and heat, voltage of system and exergy losses in each component are investigated. In addition, a developed genetic algorithm optimization code is applied to determine the best optimal design parameters of the system where exergy efficiency and the total cost rate of the system are selected as two objective functions satisfying several reasonable constraints. The results show that the optimized value of total cost and the second low efficiency are 0.4149 and 0.271, respectively.
Absorption Chillers, Exergy, Fuel Cells, Hybrid System, Solar Energy Systems
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