RT Journal Article ID 52b7c4066c3254bb A1 Bartuli, E. A1 Chernysheva, M. A1 Vershinin, S. A1 Maydanik, Yury F. T1 INVESTIGATION OF THE GUIDE INSERTIONS INFLUENCE ON THE CONDENSATION OF WATER IN A NARROW GAP CONDENSER OF A LOOP HEAT PIPE JF Heat Pipe Science and Technology, An International Journal JO HPST YR 2011 FD 2011-12-01 VO 2 IS 1-4 SP 79 OP 87 K1 loop heat pipe K1 gap condenser K1 condensation K1 heat transfer K1 thermal resistance AB This paper presents the results of an investigation of heat transfer and hydrodynamics during the condensation of water vapor in a narrow gap condenser of a loop heat pipe. The length of the condenser was 80 mm. The cross section measured 40 × 1.1 mm. Instrumental investigations and visual observations of the condensation process in the condenser with and without longitudinal guide insertions were carried out. The investigations were conducted at a condenser cooling temperature from 60 to 95° C. During all operating parameters a stratified two-phase flow and film condensation were observed. The temperature field in the condenser and the heat-transfer coefficients were measured. The heat-transfer coefficients in the condenser without the insertions were in the range from 21 to 46 kW/(K·m2), with the insertions from 42 to 88 kW/(K·m2). PB Begell House LK https://www.dl.begellhouse.com/journals/4b0844fc3a2ef17f,281a8ea578f5d779,52b7c4066c3254bb.html