Abstract
Today, the use of alternative energy sources such as solar energy to overcome the obstacles caused by the consumption of fossil fuels is inevitable. However, solar energy faces natural issues such as intermittency, instability and uncertainty. Meanwhile, integration of clean energy sources can be a key solution. On the other hand, fuel cells are conversion devices that have advantages, e.g., high reliability, low emissions, and high efficiency. The aim of this study is to present and evaluate the operation of a new energy process based on alkaline fuel cell (AFC) and solar photovoltaic (PV) field. AFC produces electrical and thermal power. In downstream cycles, additional electricity and cooling are generated by the Stirling engine and the absorption chiller, respectively. The solar field provides the power of an electrolyzer to supply fuel and oxidant to the fuel cell. Results showed that the cycle can produce up to 3.4 kW of electricity. The share of AFC, Stirling engine and solar PV field in electricity generation is 29.3, 21.4 and 49.3 %, respectively. It was also found that the electrical and overall efficiencies of the cycle are 64.36 and 77.57 %, respectively. In addition, 77.44 kW of exergy is destroyed.
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