Open AccessA practical calibration method of the room type calorimeter for testing the energy efficiency of room air conditioner
Author(s) -
Haiyun Zhang,
Chenzhe Hang,
WU Zong-hua,
Dinghua Xu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/721/1/012038
Subject(s) - calorimeter (particle physics) , calibration , air conditioning , nuclear engineering , range (aeronautics) , energy balance , energy (signal processing) , environmental science , automotive engineering , materials science , engineering , mechanical engineering , mathematics , thermodynamics , physics , electrical engineering , statistics , detector , composite material
The room type calorimeter is generally used as the energy efficiency measurement standard equipment in the air conditioner industry. However, the calibration procedure is not investigated. In this study, based on the empty-load situation of calorimeter, the calibration model is proposed in order to restrain the error of heat balance caused by long-term use. Besides, two new parameters, which are background value of indoor-side and outdoor-side, are presented in accordance with the calibration model. Experiments are designed to obtain these two parameters and three heat leakage coefficients of partition wall, as well as the calibration procedure and application method of the parameters are illustrated. The corrected calorimeter measures ten different window type air conditioners in one year. The results show that the absolute value of heat balance is less than 2% in the cooling capacity range of 2000W∼4500W and 1% in the range of 4500W∼7000W.