MODELING AND ANALYSIS OF THE COOLING SYSTEM OF AN AMMONIA COMPRESSOR
A simplified model for a water-cooled ammonia compressor was developed. This model is based on a discretized description of the compression and heat transfer processes. The compressor is hence viewed as a heat exchanging device including a heat source. The model is used to highlight some features of cooling circuits. First, such a circuit cannot be designed using conventional heat exchanger theories (e.g. LMTD method), because the fluids temperature profiles usually cross-over each other, and because their shape is clearly different from usual heat exchangers temperature profiles: depending on the conditions, the coolant temperature exhibit a maximum or minimum along its path. An analysis of the cooling efficiency to various parameters is provided: the effect of co-current or counter flow on the discharge temperature, the effect of coolant mass flow rate, etc. will be particularly pointed out.
J.BONJOUR M.CLAUSSE
CETHIL UMR 5008 CNRS INSA Univ. Lyon1 INSA-Lyon ; Bat. Sadi Carnot F-69621 VILLEURBANNE Cedex - FRAN Laboratoire du Froid (E.A. 21) - Case I331 CNAM-IFFI - 292 rue St Martin 75141 PARIS Cedex 3 - FRANC
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）