Condensers
DOI 10.1615/hedhme.a.000401
3.26.5 Condensers
Jader R. Barbosa Jr. a and Christian J. L. Hermes b
a POLO – Research Laboratories for Emerging Technologies in Cooling and Thermophysics, Department of Mechanical Engineering, Federal University of Santa Catarina, Florianopolis – SC – 88040900, Brazil; Tel./Fax: + 55 48 3234 5166;
b Centerfor AppliedThermodynamics, Department of Mechanical Engineering, Federal University of Parana, Curitiba – PR – 81531990, Brazil; Tel.: +55 41 3361 3239; Fax: +55 41 3361 3123;
A. Types of Condensers
A condenser is a heat transfer device in which refrigerant vapor discharged by the compressor is de-superheated and recondensed to generate liquid refrigerant that will be reused in the evaporator for producing a cooling effect. The process of refrigerant condensation rejects heat to the condensing medium, which is usually air or water, or a combination of both (Dossat, 1997). Due to this fact, the most common classification of condensing equipment is related to the condensing medium.
Air-cooled condensers (predominantly of the fin-tube type — see Section 289) are widely used in air-conditioning and commercial refrigeration applications. Like tube-fin evaporators, the refrigerant flows inside the tubes, whereas air flow is forced by a fan through the finned-tube array. Natural draft condensers, also called “static” condensers (Gosney, 1982) such as wire-and-tube and “skin” condensers, are also adopted in small capacity applications, such as household refrigerators and freezers.
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