AH HEYDARI - Assistant Professor Department of Mechanical Engineering Sharif University of Technology Tehran, I.R. Iran

This paper describes method of forecasting the energy efficiency of refrigerator-freezer designs. An engineering computer simulation model for forecasting the impact of incorporating various design options on the energy consumption of refrigerator-freezers is used. Included in the discussion are the design parameters needed to perform the calculations accurately and the variables providing the most significant impacts. An evaluation of the model's sensitivity and accuracy compared to actual performance of models in production is presented, as is a discussion of how the various combinations of improvements predict the efficiency of the refrigerator- freezer design.