Experimental Investigation of Solar Cooling and Heating Systems : 3rd Report, Characteristics of Refrigerating Absorption Machine

Abstract

This paper presents the steady characteristics of a water-cooled lithium-bromide/water absorption chiller used for the solar cooling system installed in the Co-operative Research Center of the Yatsushiro National College of Technology. From the analysis of experimental results, the empirical equations of the heat transfer rates from the hot water, cooling water, and the chilled water are obtained by multiple regression analysis for the purposes of convenience for computer simulation of a solar cooling system. Further, it is shown that their heat transfer rates can be calculated by making use of the concentration-enthalpy diagram of a lithium bromide water solution, if the volumetric flow rates and the inlet temperatures of the hot water, cooling water, and the chilled water are given.