Replacement Refrigerant and System Evaluation

Period of Performance: 04/01/1994 - 07/01/1995


Phase 2 SBIR

Recipient Firm

Applied Technology Assoc., Inc.
411 NW 97th LANE
Coral Springs, FL 33071
Principal Investigator

Research Topics


The current CFC refrigerants used in vapor cycle systems are scheduled to be phased out and replaced with refrigerants that are environmentally less hazardous. These new refrigerants are typically HFC's and HCFC's. These replacement refrigerants have little or no deleterious effect on ozone depletion. There is a requirement for military applications to replace the CFC refrigerants with these alternate refrigerants. During the switchover process, the oil and some of the cooling system components will require replacement or modification. A major component of any vapor cycle system is the compressor. A combined analytical and experimental effort will be conducted to develop a high performance integral compressor/electric motor unit that is not oriented to any of the existing CFC's and is versatile enough to be used with new refrigerants. Preliminary Phase I testing demonstrated that the compressor with either the alternate HFC-134a refrigerant or a perfluorocarbon is a viable system component that can be used to replace the current CFC based systems. This integral compressor unit is estimated to be one third the size and weight of a reciprocating compressor/motor unit. The development of this high performance integral compressor/motor unit technology will have very favorable impact on reducing the size and weight of both military and commercial environmental control equipment.