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Title: Review of recent research on heat transfer with mixtures. Part 1: Condensation

Abstract

During the past 10 years, interest in heat transfer with mixtures has increased for several reasons. First, the use of zeotropic refrigerant mixtures (ZERMs) as working fluids in heat pump and refrigeration systems indicates potential advantages in efficiency and capacity. Second, ZERMs are prospective substitutes for chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) refrigerants (such as R12, R-11, and R-22). However, before the refrigerant mixtures will be put to use in heat pump, refrigerator, and air conditioning systems, the problem of possibly changed heat transfer performance and pressure drop in condensation processes has to be considered to realize the claimed advantages. Thus, it is necessary to study the mechanisms of condensation with mixtures. In this paper, a companion to one on boiling and evaporation, the recent research on condensation heat transfer with mixtures is reviewed. The main points are the thermal resistance of the vapor diffusion layer affecting the condensation, the influence of the flow direction of vapor on the condensation, the turbulence in the vapor generated by the fins, and the enhancement of the condensation performance of mixtures. This review is mainly concerned with the condensation of miscible mixtures, especially ZERMs. Only a few selected papers related to immiscible mixtures aremore » reviewed here.« less

Authors:
;  [1]
  1. Univ. of Illinois, Urbana, IL (United States)
Publication Date:
OSTI Identifier:
87485
Report Number(s):
CONF-950104-
TRN: IM9535%%116
Resource Type:
Conference
Resource Relation:
Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) winter meeting and exhibition, Chicago, IL (United States), 28 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of ASHRAE transactions 1995. Volume 101, Part 1; PB: 1517 p.
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; CHLOROFLUOROCARBONS; MATERIAL SUBSTITUTION; VAPOR CONDENSATION; REFRIGERANTS; HEAT EXCHANGERS; CONVECTION

Citation Formats

Wang, S P, and Chato, J C. Review of recent research on heat transfer with mixtures. Part 1: Condensation. United States: N. p., 1995. Web.
Wang, S P, & Chato, J C. Review of recent research on heat transfer with mixtures. Part 1: Condensation. United States.
Wang, S P, and Chato, J C. 1995. "Review of recent research on heat transfer with mixtures. Part 1: Condensation". United States.
@article{osti_87485,
title = {Review of recent research on heat transfer with mixtures. Part 1: Condensation},
author = {Wang, S P and Chato, J C},
abstractNote = {During the past 10 years, interest in heat transfer with mixtures has increased for several reasons. First, the use of zeotropic refrigerant mixtures (ZERMs) as working fluids in heat pump and refrigeration systems indicates potential advantages in efficiency and capacity. Second, ZERMs are prospective substitutes for chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) refrigerants (such as R12, R-11, and R-22). However, before the refrigerant mixtures will be put to use in heat pump, refrigerator, and air conditioning systems, the problem of possibly changed heat transfer performance and pressure drop in condensation processes has to be considered to realize the claimed advantages. Thus, it is necessary to study the mechanisms of condensation with mixtures. In this paper, a companion to one on boiling and evaporation, the recent research on condensation heat transfer with mixtures is reviewed. The main points are the thermal resistance of the vapor diffusion layer affecting the condensation, the influence of the flow direction of vapor on the condensation, the turbulence in the vapor generated by the fins, and the enhancement of the condensation performance of mixtures. This review is mainly concerned with the condensation of miscible mixtures, especially ZERMs. Only a few selected papers related to immiscible mixtures are reviewed here.},
doi = {},
url = {https://www.osti.gov/biblio/87485}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1995},
month = {Tue Aug 01 00:00:00 EDT 1995}
}

Conference:
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