Psychrometric Calorimeter의 성능 측정과 평가 방법에 관한 실험적 연구

Psychrometric calorimeters are the most common measurement facilities to evaluate basic performance(cooling/heating capacity. power consumption, and air flowrate) of room air-conditioners. Therefore, it is necessary to investigate major characteristics of the calorimeters and to discuss how to calibrate their sensors and control devices. In this work, a parametric study was first conducted to examine the effect of slight changes in the input variables(due to the lack of proper calibration involved in the dry bulb and wet bulb temperatures at the nozzle and chamber) on the capacity calculation. Secondly, a detailed and organized calibration process to satisfy the related measurement standards and guidelines for the testing and evaluation of the Energy Saving Grade was recommended for the accurate estimation of cooling/heating performance.