Modeling and Main Parameters Identification of an Absorption Chiller, Experimental Validation
Abstract
The liquid absorption tri-thermal refrigeration systems are particularly promising for solar cooling. Designed and sized in order to reply to nominal conditions, these machines are often submitted to varying operating conditions (cooling load, temperature and flow). The influence of these changes on the machine behavior and the associated energy performance are rather tricky to predict. The numerical simulation of the system is an alternative to experimentation and systematic analysis on pilot. But a good knowledge of the main parameters which characterize the simulated machine is necessary. As the performances are directly related to temperature levels, various experimental conditions were applied to a particular solar absorption chiller: a SCHÜCO LB of 15 kW.