AIR-SIDE HEAT TRANSFER AND PRESSURE DROP IN SPIRAL WIRE-ON-TUBE CONDENSERS

被引：0
|
作者：
Sigwalt, R. A. [2 ]
Barbosa Jr, J. R. [1 ]
Melo, C.
机构：
[1] Univ Fed Santa Catarina, Dept Engn Mech, Res Lab Emerging Technol Cooling & Thermophys, Florianopolis 88040, SC, Brazil
[2] Whirlpool SA, Joinville, SC, Brazil
来源：
23RD IIR INTERNATIONAL CONGRESS OF REFRIGERATION | 2011年 / 23卷
关键词：
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The air-side thermal-hydraulic performance of spiral wire-on-tube condensers is investigated experimentally in this paper. Sixteen prototypes were manufactured and tested in an open-loop wind tunnel calorimeter. The influence of the following geometrical parameters was evaluated: the number of tube passes, the radial and longitudinal tube spacings and the wire spacing. Measurements of the air-side thermal conductance and pressure drop were carried out for air flow rates ranging from 70 to 220 m(3)/h. The data were correlated using empirical relationships for the Colburn j-factor and the Darcy friction factor. The agreement with the experimental data presented absolute average deviations of 2.8% for the heat transfer rate and 4.8% for the pressure drop. A quantitative analysis is presented to provide the most viable configuration from the point of view of its application in a domestic refrigerator.
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页码：259 / +
页数：2
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