Heat transfer from horizontal tubes in pool boiling: influence of three-dimensional heat conduction in the wall of the evaporator tube—a finite element analysis |
| |
Authors: | C Ranganayakulu Gerhard Herres |
| |
Institution: | 1. Aeronautical Development Agency, P.O. Box No. 1718, Vimanapura Post, Bangalore, 560017, India 2. W?rme- und K?ltetechnik, Universit?t Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany
|
| |
Abstract: | In pool boiling, the electrically heated tube releases the energy non-uniformly to the liquid, due to different surface roughness
and flowing liquid. The heat transfer coefficient therefore varies with axial and azimuthal position on the tube. Hence a
finite element analysis has been carried out on a horizontal 1in. copper tube for evaporation in pool boiling for three-dimensional
conduction heat transfer. A test tube has been made with different surface structures, tested and analysed for heat conduction
effects. It has been observed that significant amount of heat flows in azimuthal and axial directions in addition to the heat
flow in radial direction. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|