Abstract

The study presents a numerical investigation on operating conditions and performances of a solar absorption chiller with LiBr-H2O. The working cycle of the investigated solar cooling equipment was modelled based on thermodynamic principles by the use of the software platform Engineering Equation Solver and was validated based on similar studies reported in literature. Further it was investigated the influence of the operating conditions like solar hot water temperature, cooling water temperature and cold water temperature, on the coefficient of performance of the solar absorption chiller and on the conditions of crystallisation. The numerical model of the solar absorption chiller working cycle proved to be capable to describe the behaviour of the equipment and to evaluate the safe operating conditions from the crystallisation point of view and from degassing point of view.

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