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, the authors provide a complete set of models/correlations that are required for designing an optimum spray cooling system and a new user-friendly CHF correlation is recommended which shows excellent predictive capability for the entire database.
Abstract: Recent studies provide ample evidence of the effectiveness of two-phase spray cooling at dissipating large heat fluxes from electronic devices. However, those same studies point to the difficulty predicting spray performance, given the large number of parameters that influence spray behavior. This paper provides a complete set of models/correlations that are required for designing an optimum spray cooling system. Several coolants (water, FC-72, FC-77, FC-87 and PF-5052) are used to generate a comprehensive spray-cooling database for different nozzles, flow rates, subcoolings, and orientations. High-speed video motion analysis is used to enhance the understanding of droplet formation and impact on the device's surface, especially near the critical heat flux (CHF) point. A previous CHF correlation for normal sprays is modified for both inclination and subcooling effects. A new user-friendly CHF correlation is recommended which shows excellent predictive capability for the entire database. Also discussed in this paper is a new theoretical scheme for assessing the influence of spray overlap on cooling performance.
111 citations
TL;DR: In this article, a combined power and ejector refrigeration cycle for low temperature heat sources is proposed, where the ejector is driven by the exhausts from the turbine to produce power and refrigeration simultaneously, and a simulation was carried out to analyze the cycle performance using R245fa as the working fluid.
110 citations
TL;DR: In this paper, the forced convective and subcooled flow-boiling heat transfer of CuO/water nanofluid as well as fouling rate were experimentally quantified for different dilute concentrations of CUO nanoparticles in water over a range of mass flux.
110 citations
TL;DR: In this article, the effects of mass flux, spray droplet velocity, droplet diameter, and distance between nozzle and heat source were investigated for horizontal spray cooling on vertical constant heat flux surfaces with subcooled Freon-113.
110 citations
TL;DR: In this paper, a thermodynamic model for cascaded vapor compression-absorption system (CVCAS) has been developed which consists of a vapor compression refrigeration system (VCRS) coupled with single effect vapor absorption refrigeration (VARS) Based on first and second laws, a comparative performance analysis of CVCAS and an independent VCRS has been carried out for a design capacity of 6667kW.
108 citations