Open-Cycle Absorption Solar Cooling. Part 3. Evaluation of Air-Conditioning Systems Utilizing Liquid Absorbents Regenerated by Solar Energy. Final Report

摘要

Previous open-cycle absorption modeling studies have been very limited and included only the solar collection part of the system. The purpose of this study was to evaluate the critical parameters necessary in order to have a viable system and to evaluate the potential for use of this type of system in various climatic regions of the United States. Thermodynamic property data were reviewed for several possible working solutions, analyzed to give predictive equations, and compiled into subprograms suited to system simulation work. The exergy concept was used to analyze the sources driving cooling systems. It was shown that an effectiveness based on exergy could be used as a thermodynamic common denominator to compare cooling systems using different driving sources, including those that utilize the evaporation of water to the atmosphere. Modeling of the absorber was used to show how an absorber, working with lithium chloride solution, would have to differ from an absorber, working with the lithium bromide solution used in conventional closed absorption-refrigeration equipment. System simulations were done for five system design concepts. (ERA citation 11:047420)