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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-483-0

ISBN Online: 978-1-56700-482-3

4th Thermal and Fluids Engineering Conference
April, 14–17, 2019 , Las Vegas, NV, USA

COMPARISON TECHNIQUE FOR THERMODYNAMIC PERFORMANCE OF HEAT ACTIVATED COOLING SYSTEMS

Get access (open in a dialog) pages 33-36
DOI: 10.1615/TFEC2019.aes.027594

Abstract

Heat activated cooling systems are prevalent in many industrial or power production facilities to increase the overall process efficiency. There are several types of waste heat activated cooling technologies including absorption, adsorption, organic-Rankine vapor-compression, and ejector. These systems operate over a range of conditions and coefficient of performance values which can make it challenging to compare systems based on pure thermodynamic performance. This study presents a new comparison technique which utilizes the maximum Carnot COP of a three reservoir system and the COP fraction to eliminate temperature dependence from the reported COP. A range of literature was surveyed to make direct comparisons between systems of various types, reservoir temperatures, and capacities. Trends were developed for each system type to help future researchers determine expected performance for typical heat activated cooling systems based on reservoir temperatures. These trends can inform decisions for system type based on available heat source, typical ambient temperatures, and required cooling load. In addition, a recently tested turbo-compression cooling system was compared with the state-of-the-art technologies using the new method. The results of the comparison showed superior performance to many systems and equal performance to double effect LiBr-water absorption systems.