Share

IIR document

Highly efficient heat pump with desiccant coated evaporator and condenser: principle and application.

Number: pap. n. 1879

Author(s) : WANG R., HUA L., GE T., et al.

Summary

Nowadays, comfortable and efficient heating, ventilation, and air conditioning (HVAC) systems in buildings are highly desirable. Traditional vapor-compression devices exhibit a low coefficient of performance (COP) (typically 2.8–3.6) due to the cooling-based dehumidification. Temperature-and humidity-independent control (THIC) systems have been proposed to overcome the challenges; however, their COP is hindered by the sorption heat effect. Here, we report on a solid desiccant heat pump (SDHP) based on desiccant coated evaporators/condensers (DCEs/DCCs). The desiccants adsorb moisture almost isothermally and can be regenerated by the condensation heat. With the optimized refrigerant and desiccant, our proposed DCCs/DCEs feature a weakly-coupled heat and mass transfer. The system exhibits a COP of 6~7, doubling the efficiency of heat pumps currently used in household, which opens a window for the future development of HVAC systems and also a broad range of THIC applications.

Available documents

Format PDF

Pages: 12

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Highly efficient heat pump with desiccant coated evaporator and condenser: principle and application.
  • Record ID : 30026554
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.1879

Links


See other articles from the proceedings (632)
See the conference proceedings

Indexing