Commercial Unitary Heat Pumps:An Assessment Study

摘要

A state-of-the-art assessment of commercial unitary heat pumps (CUHPs) is presented. Commercial heating, ventilating and air conditioning (HVAC) market trends are reviewed as is the position of CUHPs in the commercial market. The features and operating characteristics of CUHPs are examined. Installed costs and annual energy costs of CUHPs are developed and compared to other unitary products. A need for improving the low temperature performance of CUHPs is identified and concepts are advanced for improvements in that area. The potential of dual-fuel heat pumps is explored. Finally, research recommendations for enhancing CUHP performance are outlined.