Thermodynamic and exergoeconomic evaluation of waste heat recovery for hydrogen production in a CCHP system

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Emamifar Armin

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Journal Paper

Paper Information

Journal: HYDROGEN, FUEL CELL & ENERGY STORAGE Year:2022 | Volume:9 | Issue:1 Page(s): 53-68

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Title

Thermodynamic and exergoeconomic evaluation of waste heat recovery for hydrogen production in a CCHP system

Author(s)

Emamifar Armin | Issue Writer Certificate

Keywords

Kalina cycle

PEM electrolyzer

multigeneration

exergoeconomic analysis

Abstract

This study presents the energy, exergy, and economic evaluation of recovering energy from a modified Kalina power-cooling system to provide heating and hydrogen. An ORC is employed to use the waste heat of the Kalina cycle, and the generated power is transmitted to a PEM electrolyzer for hydrogen production. Furthermore, the waste heat of the separator outlet is recovered through a new heat exchanger to provide heating. The results show that the proposed system can produce 317 kW power, 714. 7 kW cooling, 50. 3 kW heating, and 4. 491 kg/h hydrogen. Moreover, the exergoeconomic analysis indicates that the PEM electrolyzer, the cascade heat exchanger, and the vapor generator have the highest cost rate among the system components. Additionally, a parametric study was performed on the system to investigate the variation of some key parameters, including the maximum operating pressure, separator II pressure, ammonia mass fraction in a basic solution, and pinch point temperature difference in the cascade heat exchanger for the thermodynamic and economic performance of the system.

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APA: Copy

Emamifar, Armin. (2022). Thermodynamic and exergoeconomic evaluation of waste heat recovery for hydrogen production in a CCHP system. HYDROGEN, FUEL CELL AND ENERGY STORAGE (IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL), 9(1), 53-68. SID. https://sid.ir/paper/1052437/en

Vancouver: Copy

Emamifar Armin. Thermodynamic and exergoeconomic evaluation of waste heat recovery for hydrogen production in a CCHP system. HYDROGEN, FUEL CELL AND ENERGY STORAGE (IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL)[Internet]. 2022;9(1):53-68. Available from: https://sid.ir/paper/1052437/en

IEEE: Copy

Armin Emamifar, “Thermodynamic and exergoeconomic evaluation of waste heat recovery for hydrogen production in a CCHP system,” HYDROGEN, FUEL CELL AND ENERGY STORAGE (IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL), vol. 9, no. 1, pp. 53–68, 2022, [Online]. Available: https://sid.ir/paper/1052437/en

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