Journal
APPLIED THERMAL ENGINEERING
Volume 50, Issue 1, Pages 63-70Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2012.05.032
Keywords
Automotive air-conditioning (AAC); Artificial neural network (ANN); Mathematical modeling; Coefficient of performance (COP)
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In this study, ANN model for a standard air-conditioning system for a passenger car was developed to predict the cooling capacity, compressor power input and the coefficient of performance (COP) of the automotive air-conditioning (AAC) system. This paper describes the development of an experimental rig for generating the required data. The experimental rig was operated at steady-state conditions while varying the compressor speed, air temperature at evaporator inlet, air temperature at condenser inlet and air velocity at evaporator inlet. Using these data, the network using Lavenberg-Marquardt (LM) variant was optimized for 4-3-3 (neurons in input-hidden-output layers) configuration. The developed ANN model for the AAC system shows good performance with an error index in the range of 0.65-1.65%, mean square error (MSE) between 1.09 x 10(-5) and 9.05 x 10(-5) and the root mean square error (RMSE) in the range of 0.33-0.95%. Moreover, the correlation which relates the predicted outputs of the ANN model to the experimental results has a high coefficient in predicting the AAC system performance. (c) 2012 Elsevier Ltd. All rights reserved.
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