Study of a high efficiency residential split water-cooled air conditioner
Journal
Applied Thermal Engineering
Journal Volume
25
Journal Issue
11-12
Pages
1599-1613
Date Issued
2005
Author(s)
Hu S.S.
Abstract
This paper presents an experimental investigation of a high-efficiency split residential water-cooled air conditioner that utilizes cellulose pad as the filling material of the cooling tower. The cooling tower performance is improved due to good water wettability of the cellulose pad that causes a uniform water film over the entire surface of the pads and a perfect contact between water and cooling air. The cooling tower is integrated with the condensing unit of the Rankine-cycle in structure design to form an integral-type outdoor unit. The heat and mass transfer characteristics of the cellulose pads is first studied and the results are used for the design of the cooling tower. A prototype with 3.52 kW cooling capacity was constructed and tested in the present study. The experimental results show the coefficient of performance (COP) reaches 3.45 at wet-bulb temperature 27 °C, dry-bulb temperature 35 °C, air velocity 1.7 m/s, water flow rate 5.1 l/min, and that is higher than the standard value (2.96) of those conventional residential split air conditioners. © 2004 Elsevier Ltd. All rights reserved.
SDGs
Other Subjects
Atmospheric humidity; Cellulose; Cooling; Energy utilization; Enthalpy; Gas emissions; Heat transfer; Mass transfer; Air conditioners; Cellulose pads; Energy savings; Filling materials; Air conditioning; Air Conditioning; Cellulose; Cooling; Energy Consumption; Enthalpy; Heat Transfer; Humidity; Wettability
Type
journal article