Abo Bibliothek: Guest

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

International Heat Transfer Conference 13
August, 13-18, 2006, Sydney, Australia

PERFORMANCE COMPARISON OF ALUMINUM AND COPPER FINNED TUBE EVAPORATORS USED IN A RESIDENTIAL AIR-CONDITIONER

Get access (open in a dialog) DOI: 10.1615/IHTC13.p18.360
8 pages

Abstrakt

Performance tests were conducted on three (3) finned tube evaporators (coils), which included an untreated aluminum fin evaporator, an untreated copper fin evaporator, and a hydrophilic treated copper fin evaporator. The hydrophilic treatment was done by immersing the evaporator in a chemical solution for a certain length of time. Each evaporator was tested with it being installed in the indoor unit of a cabinet-type air conditioner, which was used as the platform of the performance tests. Tests were conducted using the calorimeter method under the standard air condition (27°/19° indoor air state and 35° outdoor air temperature). The test results suggest that, 1) the surface-treating method developed in this research is an effective means to improve the surface wettability of a copper finned tube evaporator, 2) the evaporator surface wettability has unnoticeable effect on the total cooling capacity, this may be partially attributed to the limited amount of the condensate retained on the fin surface of the evaporator, and 3) the copper fin evaporator yields a 6% greater total cooling capacity than the aluminum fin evaporator of the same dimension.