Thermoeconomic otimization of a single effect water/LiBr vapour absorption refrigeration system
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Subtitle: Thermoeconomic otimization of a single effect water/LiBr vapour absorption refrigeration system
Publisher: Elsevier
Publication year: 2003
Journal: International Journal of Refrigeration (0140-7007)
Volume number: 26
Issue number: 2
Start page: 158
End page: 169
Number of pages: 12
ISSN: 0140-7007
URL: https://www.sciencedirect.com/science/article/pii/S0140700702000865
Abstract
In this paper, the thermoeconomic theory is applied to the economic optimization of a single effect water/LiBr vapour absorption refrigeration system for air-conditioning application, aimed at minimizing its overall operation and amortization cost. The mathematical and numerical techniques based optimization of thermal system is not always possible due to plant complexities. Therefore, a simplified cost minimization methodology is applied to evaluate the economic costs of all the internal flows and products of the system by formulating exergoeconomic cost equations. Once these costs are determined, the system is thermoeconomically evaluated to identify the effects of design variables on costs and enables to suggest values of design variables that would make the overall system cost effective. Finally, an approximate optimum design configuration is obtained by means of sequential local optimization of the system, carried out unit by unit. The result compares this optimum with the base case and shows percentage variations in the system's operation and amortization cost.
Keywords
Refrigerating systemAbsorption systemWater/lithium bromideOperatingOptimizationThermodynamicsEconomics
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