EXPERIENCES OF FIELD METHOD FOR 'REFRIGERATION PERFORMANCE ANALYSING' AND POTENTIAL FOR PERFORMANCE AND FUNCTIONALITY IMPROVEMENTS ON REFRIGERATION AND AIR-CONDITIONING SYSTEMS

摘要

The paper presents a method for "Refrigeration Performance Analyzing" that based on measurements in the refrigerant circuit (and for reference on the secondary sides) through calculation with refrigerant properties and an energy balance over the compressor calculate the process including COP, capacity and all relevant parameters for evaluation of performance and optimization. The method has been used with good results in Sweden and some other markets for almost 20 years. New development of hard- and software has increased the flexibility and decreased the price for equipment and also make integration in Building management Systems possible. The method is presented together with experiences in general and some specific case studies.