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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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Patent•
18 Sep 1978
TL;DR: A compression-type refrigeration system which utilizes the conventional suction line of such a system as a defrost conduit at periodic intervals and which incorporates an auxiliary heat exchanger which can act to subcool the condensed refrigerant during a refrigeration cycle and heat the refrigerant coming from the receiver of the system during defrost cycle is described in this article.
Abstract: A compression-type refrigeration system which utilizes the conventional suction line of such a system as a defrost conduit at periodic intervals and which incorporates an auxiliary heat exchanger which (1) can act to subcool the condensed refrigerant during a refrigeration cycle and (2) acts to heat the refrigerant coming from the receiver of the system during a defrost cycle
37 citations
TL;DR: In this article, the authors measured liquid vapor behavior close to a heating surface using two conductance probes with tip diameters smaller than 5μm, and found that the thickness of the macrolayer formed in sub-cooled boiling is comparable to or thicker than those near the CHF in saturated boiling.
37 citations
TL;DR: In this paper, the classic nucleation theory is used to predict the range of temperatures and pressures for which a subcooled solution of sodium acetate trihydrate solidifies spontaneously.
Abstract: The solidification of sodium acetate trihydrate in a commercial heat pack is investigated in a series of three articles. In the first work, the classic nucleation theory is used to predict the range of temperatures and pressures for which a subcooled solution of sodium acetate solidifies spontaneously. The nucleation temperature was determined experimentally and it was shown that it is insensitive to concentration, at atmospheric pressure. Using the theoretical results for high pressure and the experimental measurements at atmospheric pressure, an equation for the nucleation temperature was derived as a function of pressure. This relation takes into account heterogeneous nucleation on ever-present impurities suspended in the solution.
37 citations
12 Jul 2010
TL;DR: In this paper, the authors have carried out the drop-in experiments of R410A, HFO-1234ze(E) and the mixture of 50mass%HFO 1234ze (E)/50mass% HFC-32 at the same heating load of 2.8 kW.
Abstract: In the present study we have carried out the drop-in experiments of R410A, HFO-1234ze(E) and the mixture of 50mass%HFO-1234ze(E)/50mass%HFC-32 at heating mode, using a vapor compression heat pump system developed for R410A. It has found that in the case of mixture of 50mass%HFO-1234ze(E)/50mass%HFC-32 the COP value is little affected by the degree of subcooling at the condenser outlet and it is only about 7.5% lower than that of R410A at the same heating load of 2.8 kW. This reveals that mixtures of HFO-1234ze(E)/HFC-32 are considered to be applicable as low-GWP alternatives for R410A by adjusting the composition of the mixture and by reconsidering the design parameters of components of room air-conditioning system.
37 citations
TL;DR: In this article, the authors presented a novel combination of transcritical carbon dioxide refrigeration with Boosted-MED (Multi-Effect-Desalination) system to provide cooling and fresh water simultaneously.
37 citations