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Performance evaluation of a polygeneration system based on fuel cell technology and solar photovoltaic and use of waste heat
Sustainable Cities and Society ( IF 10.5 ) Pub Date : 2021-06-01 , DOI: 10.1016/j.scs.2021.103055
Shicheng Wang , Wei Li , Hadi Fooladi

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.



中文翻译:

基于燃料电池技术和太阳能光伏及余热利用的多联产系统性能评价

今天,使用太阳能等替代能源来克服化石燃料消耗带来的障碍已是必然。然而,太阳能面临着间歇性、不稳定性和不确定性等自然问题。同时,清洁能源的整合可能是一个关键的解决方案。另一方面,燃料电池是具有高可靠性、低排放和高效率等优点的转换装置。本研究的目的是介绍和评估基于碱性燃料电池 (AFC) 和太阳能光伏 (PV) 领域的新能源工艺的运行。AFC 产生电能和热能。在下游循环中,斯特林发动机和吸收式制冷机分别产生额外的电力和冷却。太阳能场提供电解槽的能量,为燃料电池提供燃料和氧化剂。结果表明,该循环可产生高达 3.4 千瓦的电力。AFC、斯特林发动机和太阳能光伏领域在发电中的份额分别为29.3%、21.4%和49.3%。还发现循环的电效率和总效率分别为 64.36% 和 77.57%。此外,77.44 kW 的火用被破坏。

更新日期:2021-06-04
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