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International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

THE EXPERIMENTAL INVESTIGATION OF A DOUBLE PIPE HEAT EXCHANGER INSTALLED INSIDE A SPLIT-TYPE AIR-CONDITIONING SYSTEM

Anchasa Pramuanjaroenkij
Faculty of Science and Engineering, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000 Thailand

Siriporn Phankhoksoong
Faculty of Science and Engineering, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000 Thailand

Amarin Tongkratoke
Faculty of Science and Engineering, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000 Thailand

Sadik Kakac
Department of Mechanical Engineering,TOBB University of Economics and Technology, Ankara-Turkey; and LIPING CAO, Westinghouse Electric Company, LLC, PA; and Department of Mechanical Engineering, University of Miami, Florida - USA

DOI: 10.1615/IHTC16.her.023628
pages 4823-4832


KEY WORDS: Heat exchanger, Air conditioning and refrigeration, Double-pipe Heat Exchanger

Abstract

This research aimed to study effects of a double-pipe heat exchanger which installed inside a 24000-BTUh split-type air-conditioning (A/C) system. The heat exchanger was used to exchange heat between low temperature refrigerant inside the suction line (the refrigerant tube between the evaporator and the compressor) and high temperature refrigerant inside the liquid line (the refrigerant tube between the receiver tank and the refrigerant flow control valve). The A/C power consumptions with and without the heat exchanger installed were measured. This study also investigated the A/C power consumptions when the A/C system was applied with the heat exchanger coupled with fabric drying application which induced the evaporative heat transfer effect at the condensing unit in 4 different weather conditions; the normal and rainy daytime and nighttime. From the experimental results, the A/C system with the heat exchanger consumed power less than the system without the heat exchanger in all weather conditions. Remarkably, during the nighttime, the A/C system with the heat exchanger consumed power notably less than that of the system without the heat exchanger. The A/C system with the heat exchanger coupled with the drying application consumed power less than that of the system without the heat exchanger but with the drying application in all weather conditions.

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