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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-518-9

5th Thermal and Fluids Engineering Conference (TFEC)
April, 5-8, 2020, New Orleans, LA, USA

EXPERIMENTAL PERFORMANCE OF A TURBO-COMPRESSION COOLING SYSTEM OPERATING UNDER POWER PLANT CONDITIONS

Get access (open in a new tab) pages 243-246
DOI: 10.1615/TFEC2020.env.032367

Resumo

Power generation assets consume tremendous amounts of water in the United States, using 40% of all freshwater withdrawals. Although most of this water is recycled within the plants, approximately 4% leaves the site via evaporative cooling towers. This evaporating water represents a strong opportunity to provide substantial water savings, especially for water constrained regions such as the desert southwest. A common water reduction option is to replace the evaporative cooling towers with air coupled condensers, but the size and cost of the air-coupled heat exchangers often makes this option prohibitive. One method to enable air-coupled heat exchange is to offset a portion of the condenser cooling load with a waste heat activated cooling system. The team at Colorado State University has recently developed an experimental Turbo-Compression Cooling System (TCCS) at 250 kWth cooling scale which can operate under unique power plant operating conditions (i.e., Twaste=106°C, Tamb=15°C, and Tcool=17.2°C). The present study provides experimental results for the TCCS over a range of cooling water temperatures and ambient temperatures to fully characterize system performance. The highest COP obtained for the system was 2.07 and occurred with ambient temperature of 21.4°C and ambient to cooling water temperature difference of 1.4°C.