Gradient heat flux measurement in study of heat transfer during steam condensation inside pipes

Abstract

Abstract The article is about the application of the gradient heat flux measurement in the study of heat transfer during steam condensation at the inner surface of the pipe during different directions of water and steam supply. The installed gradient heat flux sensors (GHFS) and thermocouples did not disturb the condensate film flow on the pipe surface. Heat flux per unit areas and temperatures were measured along the length of the pipe. The obtained results confirmed the high informative of gradient heat flux measurement, as well as the capability of GHFS operating under experimental conditions.