Exergy analysis and performance enhancement of isopropanol-acetone-hydrogen chemical heat pump

Min XU, Jun CAI, Xiulan HUAI

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PDF(213 KB)
Front. Energy ›› 2017, Vol. 11 ›› Issue (4) : 510-515. DOI: 10.1007/s11708-017-0508-0
RESEARCH ARTICLE

Exergy analysis and performance enhancement of isopropanol-acetone-hydrogen chemical heat pump

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Abstract

Exergy loss analysis was conducted to identify the irreversibilityin each component of the isopropanol-acetone-hydrogen chemical heatpump (IAH-CHP). The results indicate that the highest irreversibilityon a system basis occurs in the distillation column. Moreover, theeffect of operating parameters on thermodynamic performances of theIAH-CHP was studied and the optimal conditions were obtained. Finally,the potential methods to reduce the irreversibility of the IAH-CHPsystem were investigated. It is found that reactive distillation isapromising alternative. The enthalpy and exergy efficiency of theIAH-CHP with reactive distillation increases by 24.1% and 23.2%, respectively.

Keywords

waste heat reuse / chemicalheat pump / exergy analysis / isopropanol

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Min XU, Jun CAI, Xiulan HUAI. Exergy analysis and performance enhancement ofisopropanol-acetone-hydrogen chemical heat pump. Front. Energy, 2017, 11(4): 510‒515 https://doi.org/10.1007/s11708-017-0508-0

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Acknowledgment

This work was supported by the NationalKey R&D Program of China (2016YFB0601200) and the National NaturalScience Foundation of China (Grant Nos. 51476173, 51576194).

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2017 Higher Education Press and Springer-Verlag GmbHGermany
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