A High Temperature Heat Pump With Methanol/Water Absorption (original) (raw)

Advanced Energy Systems

Abstract

The high temperature lift heat pumps required in many technical applications can not be achieved by conventional single stage absorption units. In recent years as solution of this problem have been proposed the multistage absorption cycles with many heat exchange units, control devices and a higher capital expenditure. The purpose of this work is to investigate the posibility of a design of a methanol/water single stage AHP, capable to meet the high temperature lift heating requirements. The lacking thermodynamic properties of the working medium are estimated at modest and higher pressures. The results are given in correlations suitable for computer use as well as in diagrams. A parametric study is conducted for the proposed unit in order to reveal the influence of the varius parameters on the performance of the cycle.

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