Analysis and Verification of High Temperature Heat Pump Dryer using Waste Heat Recovery Type for R245fa Refrigerant

Title & Authors
Analysis and Verification of High Temperature Heat Pump Dryer using Waste Heat Recovery Type for R245fa Refrigerant
Bae, Kyung-Jin; Cha, Dong-An; Kwon, Oh-Kyung;

Abstract
In this study, the performance characteristics of a high temperature heat pump dryer that is able to raise the air temperature up to $\small{80^{\circ}C}$ by using waste heat as heat source were investigated numerically. The main components of the heat pump dryer were modeling as a compressor, condenser, evaporator and expansion device, and R245fa was selected as refrigerant. Experiments were also conducted to validate the numerical data. As a result, when the evaporator air inlet temperature increased from $\small{50^{\circ}C}$ to $\small{65^{\circ}C}$, the numerical results of the hot air temperature at outlet and heat pump COP were about 8~11% and 5~8% higher than that of experimental ones, respectively.
Keywords
Dryer;Heat Pump;R245fa;Waste Heat Recovery;
Language
Korean
Cited by
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