Impacts of room temperature on the performance of a portable propane air conditioner

Article

Sharifian, Ahmad and Tangalajuk Siang, Jeri. 2015. "Impacts of room temperature on the performance of a portable propane air conditioner." International Journal of Air-Conditioning and Refrigeration. 23 (2), pp. 1550015-1. https://doi.org/10.1142/S2010132515500157
Article Title

Impacts of room temperature on the performance of a portable propane air conditioner

ERA Journal ID212866
Article CategoryArticle
AuthorsSharifian, Ahmad (Author) and Tangalajuk Siang, Jeri (Author)
Journal TitleInternational Journal of Air-Conditioning and Refrigeration
Journal Citation23 (2), pp. 1550015-1
Number of Pages13
Year2015
PublisherWorld Scientific Publishing
Place of PublicationSingapore
ISSN2010-1325
2010-1333
Digital Object Identifier (DOI)https://doi.org/10.1142/S2010132515500157
Web Address (URL)http://www.worldscientific.com/doi/abs/10.1142/S2010132515500157
Abstract

The performance of a portable propane air conditioner system, in which the temperatures of the air passing over the condenser and evaporator are equal, has been experimentally investigated under different room temperatures and refrigerant charge levels. The research has been carried out in a range of room temperatures from 20°C to 35°C and in undercharge, standard charge and overcharge conditions. The results show that, at higher room temperatures, the refrigerant temperature in all parts of the system, the density of the refrigerant at the inlet and outlet of the condenser, mass of the refrigerant in the compressor, the mass flow rate of the refrigerant and the cooling capacity of the system in either the undercharge or full charge condition, the specific cooling capacity of the undercharge system, the useful work of the compressor, and the maximum pressure of the refrigerant increase. The increase in room temperature decreases the density of the refrigerant at the inlet and outlet of the capillary tube, the mass of the refrigerant in the capillary tube, the refrigerant subcooling at the inlet of the capillary tube, the maximum velocity of the refrigerant and the coefficient of performance. In addition, the increase in room temperature at overcharge condition causes an increase in the mass flow rate, cooling capacity and specific cooling capacity to a maximum value followed by their decrease. The most important difference between a portable air-conditioner and a non-portable system is the increase in cooling capacity with an increase in room temperature in full charge condition.

Keywordsroom temperature; performance; portable
ANZSRC Field of Research 2020401799. Mechanical engineering not elsewhere classified
401205. Experimental methods in fluid flow, heat and mass transfer
401299. Fluid mechanics and thermal engineering not elsewhere classified
310699. Industrial biotechnology not elsewhere classified
401411. Packaging, storage and transportation (excl. food and agricultural products)
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Byline AffiliationsComputational Engineering and Science Research Centre
Institution of OriginUniversity of Southern Queensland
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