The Waste Heat Utilization by an Absorption Heat Transformer

Abstract

The low temperature heat sources such as hot water less than 100 deg C are usually difficult to be utilized because the temperature is too low. An absorption heat transformer was developed to generate 180 deg C steam by utilizing these low temperature heat sources. A single lift absorption heat transformer generates 120 deg C steam in theoretical COP 0.5. A double lift and a triple lift absorption heat transformer generate 180 deg C steam in theoretical COP 0.33 and 0.25, respectively.