The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회지:설비저널)
- Volume 5 Issue 3
- /
- Pages.169-177
- /
- 1976
- /
- 1229-6430(pISSN)
'The Effect of Heating Surface Conditions on the Nucleate Boiling Heat Transfer'
핵비등열전달에 미치는 전열면표면조건의 영향
Abstract
The importance of surface conditions of nucleate boiling is well recognized and it has been known that the heat transfer to boiling liquid is closely related to the bubble population density. The bubble population density should depend on various factors such as heat flux, surface roughness, surface contamination, properties of liquid, etc. In this paper the effect of surface conditions on heat transfer in nucleate boiling is treated. The experiments were carried out with distilled water boiler, on the horizontal heating surfaces, sintered with various bronze particle, under atmospheric pressure. In addition, experimental investigation for the polished bronze surface was performed. By studing a coefficient Xb defined by eq. (9), which represents the bubble foaming ability of heating surface, generalized fomula on the heat transfer in the nucleate toiling were expressed. The coefficient
Keywords