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- W3046670446 abstract "Abstract Developing micro-trigeneration systems is an important step in military applications. Therefore, suggesting new portable trigeneration systems that use several energy sources is necessary. The importance of the issue is enhanced when renewable energy sources are used in suggested systems for places with no accessibility to energy sources. In this paper, different useful micro-personal trigenertion systems are proposed based on photovoltaic/thermal (PVT) and combination of photovoltaic (PV) with proton exchange membrane fuel cell (PEMFC). The proposed systems are designed to provide all or a part of personal demand loads by photovoltaic phenomena. Using different energy sources such as solar and hydrogen electrochemical energies in the proposed systems increases the flexibility and reliability of the system. The trigeneration performance of suggested cycles is simulated in the engineering equation solver software (EES) and the results based on different prime movers are compared with the system based on ultra-micro gas turbine (UMGT), which was studied in the previous work under extremely cold/hot weather. Although utilizing the PV module and PVT collector improves the performance of the system, it increases its weight as well, which is not suitable in portable applications. Therefore, the size of elements must be selected carefully. Results showed that the system based on PVT generated more power in summer so that the maximum of 105 and 17 W electrical power were generated with overall efficiency of 14% and 9% in summer and winter at maximum solar irradiance respectively. In addiotion, the most efficient system was the system based on UMGT in which the maximum overall efficiency was 21% and 28% in summer and winter respectively. The effects of the water mass flow rate of PVT on power and overall efficiency were investigated too. We found that increasing in mass flow rate increases the power and overall efficiency slightly about 16% and 15% in summer and about 33% and 25% in winter respectively. Additionally, results showed that in the combined PV-PEM system, the PV module decreased the aluminum hydride consumption significantly and generated a maximum of 13.5 W electrical power in summer. The weight of the suggested trigeneration systems is different based on different prime movers and varies from 5.66 kg to about 37.5 kg for single PEM and PVT systems respectively." @default.
- W3046670446 created "2020-08-07" @default.
- W3046670446 creator A5081610930 @default.
- W3046670446 date "2020-11-01" @default.
- W3046670446 modified "2023-09-26" @default.
- W3046670446 title "Designing and analysis of the micro-trigeneration systems based on combined proton exchange membrane fuel cell with photovoltaic and photovoltaic/thermal prime movers in portable applications" @default.
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- W3046670446 doi "https://doi.org/10.1016/j.applthermaleng.2020.115779" @default.
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