A test procedure for energetic and performance analysis of cold appliances for the food industry

2013 Joint IMEKO (International Measurement Confederation) TC1-TC7-TC13 Symposium: Measurement Across Physical and Behavioural Sciences

Armani, F.^1 ; Boscolo, A.^1

APL, Engineering and Architecture Dept., University of Trieste, via Valerio 10, Trieste, Italy^1

关键词: Device under test;    Electric power consumption;    Energetic balance;    Estimation of parameters;    Performance analysis;    Semi-empirical modeling;    Vapour compression cycles;    Virtual instrument;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/459/1/012047/pdf
DOI  :  10.1088/1742-6596/459/1/012047

来源: IOP

【 摘 要 】

In this article we present a novel approach for the characterization of cold appliances and in particular of refrigerators based on the standard vapour compression cycle with a reciprocating on/off compressor. The test procedure is based on a virtual instrument that perform both the stimulus and the data acquisition on the device under test. Acquired data is elaborated to fit a semi-empirical model based on the energetic balances between thermal and electrical sub systems and the heat exchanged with the environment. This approach results in a simple method to calculate useful parameters of the refrigerator, such as energetic performance, cooling effect and limit values of thermal loads. The test procedure requires only a few temperatures and the electric power consumption to be monitored, resulting in a low impact on the refrigerator. Preliminary tests showed a good estimation of parameters and prediction of energy consumption and heat extraction capacity of the refrigerator under test.