Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7052333 | Experimental Thermal and Fluid Science | 2015 | 7 Pages |
Abstract
Experimental investigation on the R134-a spray cooling characteristics is presented in a closed loop system. A full-cone nozzle was applied to spray onto a heated circular copper plate. The characteristics of the R134-a spray cooling under a series of different volumetric flow rate were obtained. The results shown that volumetric flow rate improves the critical heat flux (CHF). And larger volumetric flow rate prevent the dry-out phenomenon under high heat flux. However, volumetric flow rate bring the adverse condition that reduces the system efficiency. The maximum CHF of 117.2Â WÂ cmâ2 was achieved with 319Â K target surface temperature at 0.356Â LÂ minâ1. The results indicate that R134-a owns a great cooling characteristics in spray cooling system.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Yu Hou, Jionghui Liu, Xuemei Su, Yang Qian, Liqiang Liu, Xiufang Liu,