engleski

PC Data Acquisition for Refrigeration Systems

Data acquisition for refrigeration systems is presented. The data transmission between personal computer and data acquisition system was established, and the program package LabVIEW 4.0 was used for the programming of data acquisition and transfer to the computer memory. All measured data were stored in text file convenient for postprocessing. Measurements of refrigerant pressures, temperatures and mass flow, water temperatures and mass flows and compressor electric power consumption were performed. Simple organization and control of the data acquisition process was enabled. Graphic interface and fast system response enabled measurements at working conditions close to the security limits. Measured values were compared with results of a newly developped dynamic model of the heat pump.

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