Topic
Subcooling
About: Subcooling is a research topic. Over the lifetime, 6150 publications have been published within this topic receiving 99125 citations.
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TL;DR: In this paper, a general model of two-stage vapor compression technology was derived from a subcooler cycle and then extended to evaluate many other inter-stage configurations by employing an "input domain".
Abstract: Two-stage vapor compression technology has high potential of performance improvement for cold climate heat pumps, and there are several types of inter-stage configurations that need to be evaluated before making a choice. A general model of these configurations is first derived from a subcooler cycle and then is extended to be capable of evaluating many other inter-stage configurations by employing an “input domain”. The model is solved with a sequential algorithm and an analytical initial solution of the intermediate pressure is presented. After an experimentally validation with additional calculations of the subcooling parameter, the evaporating and condensing pressure, this general model is then used in the performance comparison and analysis of eight different inter-stage configurations. At last, case studies show that, this general model is capable of performing performance comparison among cycles with different types of inter-stage configurations, as well as refrigerant selection and operational analysis.
41 citations
TL;DR: In this paper, the authors proposed a new configuration of transcritical CO2 refrigeration cycle combined with a thermoelectric subcooler and an ejector (TES+EJE) is proposed.
41 citations
TL;DR: In this paper, the authors used oleic acid as the promoter of drop-wise condensation of steam at 1 atm on a horizontal surface facing down, and measured the heat-transfer coefficient of the condensation.
41 citations
TL;DR: In this article, the authors present the results of an experimental and theoretical study of heat transfer during film and transition boiling on vertical surfaces, where the theoretical analysis is confined to natural convection saturated film boiling, while the experimental work shows the effect of bulk liquid velocity with saturated and with subcooled methanol.
41 citations
TL;DR: In this paper, a honeycomb-like microporous super-hydrophobic surface was studied with non-condensable gases (NCG) concentrations up to 28% for stable coalescence-induced droplet jumping with high heat flux.
41 citations