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Experimental investigation on a novel heat pump system based on desiccant coated heat exchangers

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  • Hua, L.J.
  • Jiang, Y.
  • Ge, T.S.
  • Wang, R.Z.

Abstract

The solid desiccant heat pump (SDHP) system is a novel thermodynamic appliance, intended to improve the energy efficiency of the conventional air conditioning. In the SDHP, desiccant coated heat exchangers are adopted as the evaporator and the condenser instead of the conventional sensible heat exchangers. This article aims to investigate the performance of the SDHP under typical weather conditions. Experiments are conducted to evaluate the system in terms of the supply air condition, the electricity consumption and the coefficient of performance (COP). The experimental results show that the system can obtain high COP and improved supply air quality. With the outdoor air of 36.3 °C, 23 g/kg, it can provide cold and dry supply air of 26 °C, 8.9 g/kg and the corresponding COP reaches to 7.0. In winter, the system can realize heating and humidification simultaneously. With the outdoor air of 9.4 °C, 4.4 g/kg, the supply air from the system is 26.6 °C, 14.1 g/kg and the COP reaches up to 6.3.

Suggested Citation

  • Hua, L.J. & Jiang, Y. & Ge, T.S. & Wang, R.Z., 2018. "Experimental investigation on a novel heat pump system based on desiccant coated heat exchangers," Energy, Elsevier, vol. 142(C), pages 96-107.
    • Handle: RePEc:eee:energy:v:142:y:2018:i:c:p:96-107
    DOI: 10.1016/j.energy.2017.07.141
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    References listed on IDEAS

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    4. Ge, T.S. & Dai, Y.J. & Wang, R.Z. & Peng, Z.Z., 2010. "Experimental comparison and analysis on silica gel and polymer coated fin-tube heat exchangers," Energy, Elsevier, vol. 35(7), pages 2893-2900.
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    2. Ge, Lurong & Ge, Tianshu & Wang, Ruzhu, 2022. "Facile synthesis of Al-based MOF and its applications in desiccant coated heat exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 157(C).
    3. Gao, D.C. & Sun, Y.J. & Ma, Z. & Ren, H., 2021. "A review on integration and design of desiccant air-conditioning systems for overall performance improvements," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    4. Tokarev, M.M. & Zlobin, A.A. & Aristov, Yu.I., 2019. "A new version of the large pressure jump (T-LPJ) method for dynamic study of pressure-initiated adsorptive cycles for heat storage and transformation," Energy, Elsevier, vol. 179(C), pages 542-548.
    5. Shao, Z. & Wang, Z.G. & Poredoš, P. & Ge, T.S. & Wang, R.Z., 2023. "Highly efficient desiccant-coated heat exchanger-based heat pump to decarbonize rail transportation," Energy, Elsevier, vol. 271(C).
    6. Liang, Kai & Xue, Kaili & Zhang, Heng & Chen, Haiping & Ni, Jianxiong, 2020. "Design and performance analysis of an annular fresnel solar concentrator," Energy, Elsevier, vol. 210(C).
    7. Hua, Lingji & Wang, Ruzhu, 2022. "An exergy analysis and parameter optimization of solid desiccant heat pumps recovering the condensation heat for desiccant regeneration and heat transfer enhancement," Energy, Elsevier, vol. 238(PB).
    8. Feng, Changling & E, Jiaqiang & Han, Wei & Deng, Yuanwang & Zhang, Bin & Zhao, Xiaohuan & Han, Dandan, 2021. "Key technology and application analysis of zeolite adsorption for energy storage and heat-mass transfer process: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 144(C).
    9. Chai, Shaowei & Chen, Erjian & Xie, Mingxi & Zhao, Yao & Dai, Yanjun, 2022. "Experimental study of dehumidification performance and solar thermal energy enhancement properties on a dehumidification system using desiccant coated heat exchanger," Energy, Elsevier, vol. 259(C).
    10. Cui, X. & Islam, M.R. & Chua, K.J., 2019. "Experimental study and energy saving potential analysis of a hybrid air treatment cooling system in tropical climates," Energy, Elsevier, vol. 172(C), pages 1016-1026.
    11. Valarezo, Andres S. & Sun, X.Y. & Ge, T.S. & Dai, Y.J. & Wang, R.Z., 2019. "Experimental investigation on performance of a novel composite desiccant coated heat exchanger in summer and winter seasons," Energy, Elsevier, vol. 166(C), pages 506-518.

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