Thermodynamic and exergoeconomic analyses of a vehicular fuel cell power system with waste heat recovery for cabin heating and reactants preheating

Li, Longquan; Liu, Zhiqiang; Deng, Chengwei; Xie, Nan; Ren, Jingzheng; Sun, Yi; Xiao, Zhenyu; Lei, Kun; Yang, Sheng

doi:10.1016/j.energy.2022.123465

Energy

2022

DOI: 10.1016/j.energy.2022.123465

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Thermodynamic and exergoeconomic analyses of a vehicular fuel cell power system with waste heat recovery for cabin heating and reactants preheating

Longquan Li

Zhiqiang Liu

Chengwei Deng³

et al.

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Cited by 20 publications

(3 citation statements)

References 42 publications

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“…To enhance the overall efficiency of the fuel cell, some researchers utilize the waste heat from the fuel cell to heat reactants. Results from Li [10] et al's waste heat recovery system indicated that by modifying parameters such as current density, operating temperature, and air pressure, the highest available heat power to the cabin could reach 23.971 kW. To heat the cabin, Colmenar Santos and his colleagues [11] designed a new structure.…”

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confidence: 99%

Study on Waste Heat Recovery of Fuel‐Cell Thermal Management System Based on Reinforcement Learning

He,

Xin,

Zhang

et al. 2024

Energy Tech

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Fuel cells are very sensitive to temperature. To enhance the temperature stability of fuel cells, in this article, a reinforcement learning control method is proposed to regulate the speed of the cooling water pump, and a waste heat recovery structure is designed based on this. First, the model's accuracy is validated by comparing it with experimental data. Subsequently, in the simulation results, it is shown that reinforcement learning control improves average temperature regulation capability by 5.6% compared to proportional‐integral‐derivative (PID) control. Following the incorporation of waste heat recovery, the energy consumption of the pump is reduced by 0.04 kWh in comparison to PID control. Similarly, for the air‐conditioning system, the energy consumption of the compressor is reduced by 0.63 kWh. For the same driving distance, hydrogen consumption decreases by 80 g. Additionally, the coefficient of performance increases by 1.5% in the waste heat recovery mode.

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confidence: 99%

Study on Waste Heat Recovery of Fuel‐Cell Thermal Management System Based on Reinforcement Learning

He,

Xin,

Zhang

et al. 2024

Energy Tech

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“…The combined system operated in a stable working condition [51]. The dynamic model for studying the control strategy was not considered due to the focus of this paper on the performance evaluation and parametric study of the proposed system.…”

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confidence: 99%

“…The pressure drop in the heat exchanger, evaporator, and condenser can be ignored [51]. The pressure drop in the heat exchanger, evaporator, and compressor has little influence on the performance of the overall system.…”

mentioning

confidence: 99%

Thermodynamic Modeling and Exergy Analysis of A Combined High-Temperature Proton Exchange Membrane Fuel Cell and ORC System for Automotive Applications

Yang

et al. 2022

IJMS

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A combined system consisting of a high-temperature proton exchange membrane fuel cell (HT-PEMFC) and an organic Rankine cycle (ORC) is provided for automotive applications in this paper. The combined system uses HT-PEMFC stack cathode exhaust gas to preheat the inlet gas and the ORC to recover the waste heat from the stack. The model of the combined system was developed and the feasibility of the model was verified. In addition, the evaluation index of the proposed system was derived through an energy and exergy analysis. The numerical simulation results show that the HT-PEMFC stack, cathode heat exchanger, and evaporator contributed the most to the total exergy loss of the system. These components should be optimized as a focus of future research to improve system performance. The lower current density increased the ecological function and the system efficiency, but reduced the system’s net out-power. A higher inlet temperature and higher hydrogen pressures of the stack and the lower oxygen pressure helped improve the system performance. Compared to the HT-PEFC system without an ORC subsystem, the output power of the combined system was increased by 12.95%.

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Energy, exergy and exergo-economic analysis of a novel HT-PEMFC based cogeneration system integrated with plasma gasification of food waste

Yang,

Liang,

Peng

et al. 2024

Applied Thermal Engineering

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Thermodynamic and exergoeconomic analyses of a vehicular fuel cell power system with waste heat recovery for cabin heating and reactants preheating

Cited by 20 publications

References 42 publications

Study on Waste Heat Recovery of Fuel‐Cell Thermal Management System Based on Reinforcement Learning

Study on Waste Heat Recovery of Fuel‐Cell Thermal Management System Based on Reinforcement Learning

Thermodynamic Modeling and Exergy Analysis of A Combined High-Temperature Proton Exchange Membrane Fuel Cell and ORC System for Automotive Applications

Energy, exergy and exergo-economic analysis of a novel HT-PEMFC based cogeneration system integrated with plasma gasification of food waste

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