Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28242
Title: An experimental study of heat pipe heat exchanger for cooling and dehumidification in an indirect evaporative way
Authors: Chan, MY 
Ng, RTH
Keywords: Condensate
Energy recovery
Heat pipe heat exchanger
Indirect evaporative cooler
Issue Date: 2015
Publisher: SAGE Publications
Source: Building services engineering research and technology, 2015, v. 36, no. 5, p. 596-613 How to cite?
Journal: Building services engineering research and technology 
Abstract: A study of energy retrofit by combined heat pipe heat exchanger with cold condensate was carried out and results are presented in this paper. The parameters of study including inlet water temperature, water flow rate, primary air velocity, and exhaust air velocity on systems performance are experimentally investigated. Experiment results indicate that for a small condensate flow rate, both the latent heat of exhaust air and sensible heat of condensate can simultaneously be utilized for cooling and dehumidifying primary air, which is expected to be efficient for energy retrofit in central air conditioning systems. Practical application: Cold condensate from Heating, Ventilating, and Air-Conditioning (HVAC) plants are usually discharged or drained off. Reuse of cold condensate not only reduces wastage of water, it also fully utilizes energy and improves overall efficiency of HVAC plants. The installation and capital cost for heat pipe heat exchanger are reasonable. The physical space required is also affordable. Its practical value is useful. ? The Chartered Institution of Building Services Engineers 2014.
URI: http://hdl.handle.net/10397/28242
ISSN: 0143-6244
EISSN: 1477-0849
DOI: 10.1177/0143624415570342
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