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A STUDY ON AN EVAPORATOR-CONDENSER COMBINATION FOR HUMIDITY CONTROL IN AN AIR-CONDITIONING SYSTEM

KAR FYE, CHAN (2012) A STUDY ON AN EVAPORATOR-CONDENSER COMBINATION FOR HUMIDITY CONTROL IN AN AIR-CONDITIONING SYSTEM. Masters thesis, Universiti Teknologi Petronas.

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Abstract

An experimental study has been perfi)rmed on an evaporator-condenser system for humidity control using a constant speed compressor and fixed air volume. The evaporator-condenser system requires an addition of a reheat coil to the conventional unit. The reheat coil serves to reheat the cooled air leaving the cooling coils, thereby controlling the relative humidity. Preliminary simulations using the software Vapcyc and CoilDesigner show an improvement in the cooling performance and also an improvement in the dehumidification capability of the air conditioning system. Thereafter, an experimental study was performed using a modified commercial ceiling concealed air conditioning unit. Results from the experiments show that the dehumidification capability in terms of absolute humidity and relative humidity had improved, while the cooling performance had declined. Vapcyc and Coi!Designer are not suitable to simulate evaporator-condenser systems as they were only originally designed for conventional cooling systems. A comparison between the evaporator-condenser, desiccant wheel and loop heat pipe systems has been shown. While all systems are able to enhance moisture removal, the evaporator-condenser system is advantageous in simplicity, floor space and method of controlling the moisture removal rate. The concomitant benefits are a more comfortable environment, better productivity and more healthy conditions.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Mechanical Engineering - Energy - Air conditioning - Compression
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 22 Oct 2013 09:22
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/8951

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