[Retracted] On the Performance and Efficiency of Surface Air Cooler Working under High Temperature and High Humidity Condition

Table 3

Comparison of surface coolers in different applications.

Types of surface cooler application	The head-on wind speed (m/s)	Air humidity ratio after dehumidification by surface cooler (g/kg dry air)	The heat exchanger efficiency of the cooler ηao
Surface cooler for chiller units used in conventional air-conditioning [3]	1.8	9.5	0.694
Surface cooler for evaporative chiller units used in hot and humid areas [5]	1.8	12.7	0.617
Surface cooler for dehumidifying high temperature and high humidity air in wastewater recovery treatment [16]	2.0	16.44	0.525
Surface air cooler in this paper	1.8	12.68	0.621
	0.5	7.45	0.867