Analytic modelling of steady state single-effect absorption cycles

Single-effect absorption cycles with and without refrigerant circulation are analytically modelled. Using heat exchanger effectiveness and the Duhring equation, the governing equations of the absorption cycles are reduced to cubic and quadratic equations, whose solution allows quick analytic simulation of absorption systems with minimal information on working fluids. The models are valid for chillers, heat pumps and heat transformers and are useful for evaluation of working fluids and quick simulation of absorption cycles. (C) 2008 Elsevier Ltd and IIR. All rights reserved.