Date of Award


Degree Name

Bachelor of Science


The object of this study is to compare the performance of a gas fired dryer and a dryer that utilizes a heat pump for it's source of heat. Since a heat pump was unavailable for testing, ideal models were used to simulate heat pump behavior. Two temperatures and three different humidities were tested. To simulate the different humidity conditions the solvent coater-dryer was used with a water spray device in one of the heating zones. Using a psychometric chart and wet bulb dry bulb measurements the relative humidity was determined. From the data two curves were generated. Using those curves, mass-energy balances, and heat pump literature furnished by Westinghouse the tests show that anywhere from 20% and 50% could be saved on current costs for energy. Though initial installation costs are higher, a payback could be achieved in as little as ten years.