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Optimization analysis of high temperature heat pump coupling to desiccant wheel air conditioning system

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Abstract

The high temperature heat pump and desiccant wheel (HTHP&DW) system can make full use of heat released from the condenser of heat pump for DW regeneration without additional heat. In this study, DW operation in the HTHP&DW system was investigated experimentally, and the optimization analysis of HTHP&DW system was carried out. The performance of DW had influence on the dehumidification (evaluated by dehumidification and regeneration effectiveness) and cooling load (evaluated by thermal and adiabatic effectiveness). The results show that the enthalpy increase occurred in all the experiments. Compared to the isosteric heat, heat accumulation in the desiccant and matrix material and heat leakage from regeneration side to process side have greater influence on the adiabatic effectiveness. Higher regeneration temperature leads to lower adiabatic effectiveness that increases more cooling load of the system. When the regeneration temperature is 63°C, the maximal dehumidification effectiveness is 35.4% and the satisfied adiabatic effectiveness is 88%, which contributes to the optimal balance between dehumidification and cooling.

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Authors and Affiliations

  1. School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China

    Ying Sheng  (盛 颖), Yufeng Zhang  (张于峰) & Lijun Ma  (马丽筠)

  2. International Centre for Indoor Environment and Energy, Technical University of Denmark, Lyngby, DK-2800, Denmark

    Lei Fang  (房 磊) & Jinzhe Nie  (聂金哲)

Authors
  1. Ying Sheng  (盛 颖)
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  2. Yufeng Zhang  (张于峰)
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  3. Lei Fang  (房 磊)
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  4. Jinzhe Nie  (聂金哲)
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  5. Lijun Ma  (马丽筠)
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Corresponding author

Correspondence to Yufeng Zhang  (张于峰).

Additional information

Supported by the Danish International DSF Project (No. 09-71598) and Chinese International Collaboration Project (No. 2010DFA62410).

Sheng Ying, born in 1984, female, lecturer.

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Sheng, Y., Zhang, Y., Fang, L. et al. Optimization analysis of high temperature heat pump coupling to desiccant wheel air conditioning system. Trans. Tianjin Univ. 20, 182–188 (2014). https://doi.org/10.1007/s12209-014-2191-0

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  • DOI: https://doi.org/10.1007/s12209-014-2191-0

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