Title :
Condensation heat transfer regarding hysteretic annular flow in a rotating stepped wall heat pipe
Author :
Lin, Lanchao ; Faghri, Amir
Author_Institution :
Dept. of Mech. Eng., Connecticut Univ., Storrs, CT, USA
fDate :
27 Jul-1 Aug 1997
Abstract :
Hysteresis effects of annular flow in rotating stepped wall heat pipes are addressed based on visualization and systematic experiments. The region of hysteretic annular flow is defined. Experimental data for the annular flow condensation heat transfer in a rotating stepped wall heat pipe are presented. A model for predicting the condensation heat transfer coefficient is proposed. The theoretical results are compared with experimental data. The effect of vapor shear drag on the condensation heat transfer is discussed
Keywords :
condensation; drag; flow visualisation; heat pipes; heat transfer; pipe flow; shear flow; condensation heat transfer; condensation heat transfer coefficient; flow visualization; hysteretic annular flow; rotating stepped wall heat pipe; vapor shear drag; Data visualization; Drag; Heat engines; Heat transfer; Hysteresis; Mechanical engineering; Performance analysis; Predictive models; Stress; Thermal force;
Conference_Titel :
Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-4515-0
DOI :
10.1109/IECEC.1997.661972
