Chapter 12 Radiation Heat Transfer12-17 The view factor between the two infinitely long parallel cylinders located a distance sapart from each other is to be determined. AssumptionsThe surfaces are diffuse emitters and reflectors.AnalysisUsing the crossed-strings method, the view factor between two cylinders facing each other for s/D> 3is determined to be DD(2) (1) sFsD sD12222−=−×=+−∑∑Crossed stringsUncrossed stringsString on surface 1(/)πor DsDsF⎟⎠⎞⎜⎝⎛−+=−2221212-18 Three infinitely long cylinders are located parallel to each other. The view factor between the cylinder in the middle and the surroundings is to be determined.
This is the end of the preview. Sign up
access the rest of the document.