Effects of Incorporated Heat Exchangers on the Thermo Economic Analysis of a Water/LiBr Absorption Refrigeration System Part I: Formulations

Abstract

This paper is the first part of a study on the effects of the incorporation of additional heat exchangers on the performances of a Water/LiBr absorption refrigeration system (ARS). A thermo-economic approach is used to evaluate this effect. This first part presents the formulations developed for such a comprehensive analysis while the second paper deals with the application of the developed formulation to three configurations of an air cooled gas-fired water bromide ARS. In this paper mass, energy, and exergy balances are illustrated and applied to components system. Also, a thermoeconomic methodology is established to evaluate the economic costs of all internal flows and a product of system by formulating thermoeconomic cost balances and variables. The thermoeconomic cost balances and variables formulated here have significant importance to carry out the effects of including of heat exchangers on thermoeconomic analysis of the ARS and to determinate the optimal performances of system accounting economic constraints