Accession Number : ADA261423


Title :   A Model Action Pla to Reduce the Use and Release of CFCs in Air- Conditioning and Refrigeration Systems


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Andrews, David W ; Ellert-Beck, Daniel P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a261423.pdf


Report Date : Sep 1992


Pagination or Media Count : 90


Abstract : This study investigated methods to reduce the use and release of chlorofluorocarbon (CFC) refrigerants and evaluated alternatives to CFCS in air- conditioning and refrigeration systems. A life cycle cost (LCC) analysis formed the basis for evaluation. A literature review examined applicable CFC directives, containment methods, replacement refrigerants, and alternative processes. The results of the LCC analysis showed that maintaining the existing CFC system was always the least costly alternative. When forced to replace a CFC reciprocating package unit, the best replacement was a non-CFC reciprocating unit. The most practical replacement for reciprocating chillers was a new reciprocating chiller for systems less than 150 tons, and screw chillers for systems 150 tons or larger. Retrofitting a centrifugal chiller was cost- effective if the system had been in service no more than 11 years for a 200-ton unit, 17 years for a 400-ton unit, and 18 years for a 1000-ton unit. otherwise, 200-ton units should be replaced with screw chillers and 400 and 1000-ton units with centrifugal chillers.... Air conditioning equipment, Refrigeration systems, Refrigerants ozone layer, Environmental management, Chlorofluorocarbons(CFCs).


Descriptors :   *ENVIRONMENTAL MANAGEMENT , *REFRIGERANTS , AIR POLLUTION , COST ANALYSIS , THESES , CONTAINMENT(GENERAL) , ENVIRONMENTAL IMPACT , ENVIRONMENTAL PROTECTION , RETROFITTING , REFRIGERATION SYSTEMS , OZONE LAYER , OZONE , RELEASE , REPLACEMENT , LIFE CYCLE COSTS , AIR FORCE FACILITIES , AIR CONDITIONING EQUIPMENT


Subject Categories : Air Pollution and Control


Distribution Statement : APPROVED FOR PUBLIC RELEASE