摘要
The bubble behavior of subcooled R-12 flow boiling in the narrow channels with both double-side and single-side heating was studied experimentally.Experimental settings are: a test-section heating length of 400 mm,a cross-section of 35 mm in width and 2 mm in gap size,a mass flux of 700～1500 kg·m -2 ·s -1 ,a heat flux of 25～70 kW·m -2 and a pressure of 1.3～2.0 MPa.A comparison was made in terms of the onset of nucleate boiling(ONB)point and bubble characters with other flow pattern. The study found that with some appropriate modifications, the characteristics of double-side heating and single-side heating showed a better similarity.
The bubble behavior of subcooled R-12 flow boiling in the narrow channels with both double-side and single-side heating was studied experimentally. Experimental settings were: a test-section heating length of 400 mm, a cross-section of 35 mm in width and 2 mm in gap size, a mass flux of 700-1500 kg·m-2·s-1, a heat flux of 25-70 kW·m-2 and a pressure of 1.3-2.0 MPa. A comparison was made in terms if the onset of nucleate boiling (ONB) point and bubble characters with other flow pattern. The study found that with some appropriate modifications, the characteristics of double-side heating and single-side heating showed a better similarity.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2004年第9期1519-1522,共4页
CIESC Journal
基金
国家重点基础研究发展规划项目 (No G2 0 0 0 0 2 63 0 5 )
空泡物理和自然循环重点实验室开放基金资助 ~~
关键词
过冷流动沸腾
气泡行为
单面加热
双面加热
窄缝流道
Boiling liquids
Experiments
Heat flux
Heating
Morphology
Nucleate boiling
Pressurization
Schematic diagrams
