Size Matching Consideration During Replacement Of The Condensing Unit
نویسندگان
چکیده
Using a computer simulation this paper presents a few selection implications when the condensing unit of an existing R22 water-cooled chiller is to be replaced by a new unit that is originally sized for a different refrigerant. The selection of a new unit is assumed to be based purely on the information available in typical product catalogues. The performance of the upgraded (or retrofitted) system and changes to charge requirement of the chiller are discussed. The results provide an insight as how to select a suitable unit to deliver the desirable capacity in retrofitting circumstances. Issues related to selection of lubricant and material compatibility etc. are not considered for simplicity. It appears that the displacement rate of the replacing compressor has a noticeable influence on the performance of the upgraded system.
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