The Application of Field-Synergy Theory in Enhancing Convective Heat Transfer of Solar Wall

摘要

The field-synergy theory has been applied for convective heat transfer analysis of fluid flow inside solar wall, the factors affected convective heat transfer was discussed. The results indicate that increasing the gradient of heat flux along the vertical direction of solar wall-, increasing the ratio of vertical velocity u to horizontal velocity v(u/v>5) ^ and changing the direction of temperature gradient to get access to vertical direction (increasing the angle thetas) can enhance convective heat transfer of solar wall in the actual condition. In order to provide guidance for designer on practical project to improve heat transfer performance of solar wall, this paper give three improved measures based on analysis.