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

Ying Sheng, Yufeng Zhang, Lei Fang, Jinzhe Nie, Lijun Ma

Research output: Contribution to journalJournal articleResearchpeer-review

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. © 2014 Tianjin University and Springer-Verlag Berlin Heidelberg.
Original languageEnglish
JournalTianjin University. Transactions
Volume20
Issue number3
Pages (from-to)182-188
Number of pages7
ISSN1006-4982
DOIs
Publication statusPublished - 2014

Keywords

  • Desiccant wheel
  • Dehumidification
  • Adiabatic effectiveness
  • Performance optimization

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