IIR document
Enhancement options for separate sensible and latent cooling air-conditioning systems.
Author(s) : LING J., KUWABARA O., HWANG Y., et al.
Type of article: Article, IJR article
Summary
The performance of desiccant wheel (DW)-assisted separate sensible and latent cooling (SSLC) air-conditioning systems has been greatly improved by the application of divided heat exchangers, resulting in 7 and 46% increases in COP for R410A and CO2 systems, respectively. The paper simulated new performance-enhancing options that include evaporative cooling, a sensible wheel (SW) and an enthalpy wheel (EW) to the SSLC systems. The application of evaporative cooling to the SSLC system further improves the system COP by 7 and 14% respectively. By applying an EW to the SSLC systems, the COP is improved by 39 and 40% respectively. The DW-assisted SSLC technology also can be adopted for the dedicated outdoor system (DOS). It is concluded that only the EW is effective for enhancing the DW-assisted SSLC DOS systems because it lowers not only the cooling requirement of the vapor compression cycle, but also the heat requirement for DW regeneration.
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Details
- Original title: Enhancement options for separate sensible and latent cooling air-conditioning systems.
- Record ID : 30006439
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 1
- Publication date: 2013/01
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Indexing
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Themes:
Humidification/dehumidification equipment;
HFCs;
CO2 - Keywords: R410A; Desiccant wheel; Heat recovery; R744; Evaporative system; Modelling; COP; Air conditioning; Sensible heat; Latent heat; CO2
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