Technical and Economic Performance Evaluation Procedures for Space-Conditioning Equipment

摘要

The objective was to develop a set of estimation procedures that would enable GRI's staff to compare the techical and economic performance of gas-fired heat pumps with other competitive space-conditioning equipment. Comprehensive step-by-step manual procedures were developed. The technical performance procedure is based on the ASHRAE Bin method and therefore can be used for estimating peformance at virtually any location for which bin weather data is available (over eighty cities). The procedure is applicable to single-speed, multispeed, and fully modulating compressors, hybrid heat pumps, gas-fired heat pumps gas-fired condensing furnaces, and all conventional heating/cooling equipment. Performance degradation due to cycling, defrosting, and refrigerant characteristics can be determined by these procedures. Annual energy-source type in terms of million Btu per year.