Abstract:
This research is aimed at studying the two-phase flow pattern of a top heat mode closed loop oscillating heat pipe with check valves. The working fluids used are ethanol and R141b and R11 coolants with a filling ratio of 50% of the total volume. It is found that the maximum heat flux occurs for the R11 coolant used as the working fluid in the case with the inner diameter of 1.8 mm, inclination angle of -90∘, evaporator temperature of 125∘C, and evaporator length of 50 mm. The internal flow patterns are found to be slug flow/disperse bubble flow/annular flow, slug flow/disperse bubble flow/churn flow, slug flow/bubble flow/annular flow, slug flow/disperse bubble flow, bubble flow/annular flow, and slug flow/annular flow.
Citation:
S. Thongdaeng, B. Bubphachot, S. Rittidech, “Two-phase flow patterns of a top heat mode closed loop oscillating heat pipe with check valves (THMCLOHP/CV)”, Prikl. Mekh. Tekh. Fiz., 57:6 (2016), 160–167; J. Appl. Mech. Tech. Phys., 57:6 (2016), 1101–1107
This publication is cited in the following 5 articles:
Ali Ahmed Alqahtani, Volfango Bertola, “Ex Ante Construction of Flow Pattern Maps for Pulsating Heat Pipes”, Processes, 12:11 (2024), 2585
M. S. Elmosbahi, M. Hamdi, M. Hazami, “Design and experimental analysis of heat transfer performance of a two-phase closed thermosyphon system”, J. Appl. Mech. Tech. Phys., 64:5 (2024), 858–870
Bancha Lamlerd, Bopit Bubphachot, Teerapat Chompookham, “Experimental investigation of heat transfer characteristics of steam generator with circular-ring turbulators”, Case Studies in Thermal Engineering, 41 (2023), 102549
Zhenping Wan, Xiaowu Wang, Chen Feng, “Heat transfer performances of the capillary loop pulsating heat pipes with spring-loaded check valve”, Applied Thermal Engineering, 167 (2020), 114803
Chen Feng, Zhenping Wan, Haijun Mo, Heng Tang, Longsheng Lu, Yong Tang, “Heat transfer characteristics of a novel closed-loop pulsating heat pipe with a check valve”, Applied Thermal Engineering, 141 (2018), 558