Effects of thermal masses on heat loads of high-pressure components in an absorption chiller

This paper deals with transient analysis of a singleeffect absorption chiller considering the effects of thermal masses of structures on the heat transfer rates of high-pressure components and coefficient of performance of the system collectively and separately. The continuity of species constituting the LiBr-H۲O solution, momentum equations and energy balances are solved simultaneously. Six different cases are determined to study the effects of thermal masses. Thermodynamic properties of LiBr-H۲O solution aretaken from EES software and the simultaneous differential equations are solved in MATLAB environment using Runge-Kutta method. The results show the heat transfer rates of high-pressure components and COP are mostly affected by thermal masses whereas thermal mass of the condenser has the most significant effect on evaluating these parameters.

کلیدواژه ها:

Absorption chiller ، Dynamic simulation ، LiBr-H۲O ، Thermal mass