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Keywords: condensation
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2020, 142(8): 081601.
Paper No: HT-19-1620
Published Online: June 10, 2020
...Hong-Qing Jin; Sophie Wang Condensation of refrigerant R-134a is experimentally investigated on a paraffin-coated copper surface and compared to condensation on a plain copper surface. Heat transfer and visualization experiments are conducted for vertical-plate samples and for two different fin...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2020, 142(7): 071603.
Paper No: HT-19-1597
Published Online: May 29, 2020
...Wei Li; Yu Guo; Zong-Bao Gu; Xiang Ma; Zahid Ayub; Yan He; David J. Kukulka In this paper, the condensation heat transfer characteristics of R134a inside enhanced tubes using two types of surface structures with different materials were investigated, which were then compared with plain tubes under...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2020, 142(4): 041602.
Paper No: HT-18-1838
Published Online: February 27, 2020
...Mete Budakli; Thamer Khalif Salem; Mehmet Arik; Barca Donmez; Yusuf Menceloglu Condensation heat transfer coefficients (HTCs) are rather low compared to thin film evaporation. Therefore, it can be a limiting factor for designing heat transfer equipment. In this work, heat transfer characteristics...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2020, 142(4): 042101.
Paper No: HT-19-1120
Published Online: February 20, 2020
...Steve Q. Cai In an oscillation heat pipe (OHP), when two-phase flow oscillates to the condensation region, saturated vapor bubbles/slugs are subjected to a sudden temperature reduction or immediate subcooling. Rapid condensation ruptures vapor bubbles and generates cavitation erosions on the tube...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. January 2020, 142(1): 014502.
Paper No: HT-19-1330
Published Online: November 8, 2019
...Wen-Tao Ji; Shuai-Feng Mao; Guo-Hun Chong; Chuang-Yao Zhao; Hu Zhang; Wen-Quan Tao In order to test the effect of fin structure on the condensing heat transfer of refrigerants outside the low thermal conductivity tubes, condensation of R-134a, R-1234ze(E), and R-1233zd(E) on two enhanced titanium...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2019, 141(11): 111501.
Paper No: HT-19-1194
Published Online: September 16, 2019
...Run Yan; Chung-Lung Chen This paper presents a visualization of condensation droplet distribution affected by the electrowetting-on-dielectric (EWOD) approach. A single-side double-layer-electrode design (grid wire, thin wire, and thick wire) and coplanar-electrode design (zigzag) are discussed...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2019, 141(6): 061501.
Paper No: HT-17-1668
Published Online: April 16, 2019
...Hongguang Sun; Chih-Cheng Hsu The analytical solutions for condensation (and evaporation) rates of laminar humid air flow in the channels of a battery pack at both entrance and downstream regions are obtained/modeled. The effects of the entrance fluid velocity profile and the aspect ratio of the...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. December 2018, 140(12): 121504.
Paper No: HT-18-1133
Published Online: September 25, 2018
.... The condensation/frosting limit, that is, the lowest air humidity ratio, W air , at a constant liquid temperature, T liq , or the highest T liq at a constant W air that leads to condensation/frosting, is determined for each surface. The main aim of this study is to find the effect of moisture transfer...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. December 2018, 140(12): 121503.
Paper No: HT-17-1741
Published Online: September 5, 2018
... Evaporation Two-phase flow Boiling Condensation Heat transfer Fig. 1 Schematic of the computational domain Fig. 2 A two-phase computational cell Fig. 3 Microlayer behavior during bubble lifecycle Fig. 4 Microlayer geometry during the bubble-growth Fig. 5...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2018, 140(11): 112402.
Paper No: HT-17-1615
Published Online: July 23, 2018
... Microchannels ,” ASME Paper No. FEDSM2009-78438. 10.1115/FEDSM2009-78438 [21] Winkler , J. , Killion , J. , and Garimella , S. , 2012 , “ Void Fractions for Condensing Refrigerant Flow in Small Channels. Part Ii: Void Fraction Measurement and Modeling ,” Int. J. Refrig. , 35 ( 2 ), pp...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2018, 140(11): 112403.
Paper No: HT-17-1654
Published Online: July 23, 2018
... Condensation in Horizontal Microfin Tubes ,” Numer. Heat Transfer, Part B , 71 ( 4 ), pp. 361 – 376 . 10.1080/10407782.2016.1243934 [18] Zhang , J. , Li , W. , and Sherif , S. A. , 2016 , “ A Numerical Study of Condensation Heat Transfer and Pressure Drop in Horizontal Round and Flattened...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2018, 140(11): 112401.
Paper No: HT-17-1335
Published Online: July 23, 2018
... ( 12 ), pp. 1335 – 1342 . 10.1115/1.2349511 Electronic cooling Evaporation Heat transfer enhancement Micro heat transfer Two-phase flow Boiling Condensation Nanoscale heat transfer Heat transfer Fig. 7 Detailed schematic of the test sample package component ( a ) test chip...
Journal Articles
Article Type: Photo Gallery
J. Heat Transfer. August 2018, 140(8): 080904.
Paper No: HT-18-1283
Published Online: July 2, 2018
... Evaporation Heat transfer enhancement Porous media Boiling Condensation Copyright © 2018 by ASME 2018 0022-1481/2018/140(8)/080904/1/ $25.00 ...
Journal Articles
Article Type: Photo Gallery
J. Heat Transfer. August 2018, 140(8): 080903.
Paper No: HT-18-1279
Published Online: July 2, 2018
...Jin Sub Kim; Dong Hwan Shin; Wooyong Moon; Jaehun Heo; Jungho Lee Condensation behavior on a superhydrophobic microporous surface was visually compared with that on a plain surface in the water saturated at the pressures of 101.3 kPa (Tsat = 100 °C) and 3.2 kPa (Tsat = 25 °C). The microporous...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 092502.
Paper No: HT-17-1448
Published Online: May 25, 2018
... Laboratory , East Kilbride, UK . Computational fluid dynamics Evaporation Experimental techniques Heat transfer enhancement Nuclear heat transfer Thermophysical properties Boiling Condensation Boiling Condensation Fig. 1 Phase diagram Fig. 2 Geometry and coordinate system...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 091503.
Paper No: HT-17-1281
Published Online: May 25, 2018
...Wen-Tao Ji; Chuang-Yao Zhao; Jessica Lofton; Zeng-Yao Li; Ding-Cai Zhang; Ya-Ling He; Wen-Quan Tao In this work, the condensation of refrigerants on a single, high-density, low-fin tube and full-sized shell and tube condensers were investigated experimentally. The low-fin tube had an external fin...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2018, 140(10): 102401.
Paper No: HT-17-1447
Published Online: May 25, 2018
...Claire K. Wemp; Van P. Carey Spraying water droplets on air fin surfaces is often used to augment the performance of air-cooled Rankine power plant condensers and wet cooling tower heat exchangers for building air-conditioning systems. To get the best performance in such processes, the water...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 091502.
Paper No: HT-17-1619
Published Online: May 22, 2018
... Barletta. 1 Corresponding author. Evaporation Heat and mass transfer Two-phase flow Boiling Condensation Heat transfer Fig. 1 The geometry of the undisturbed interface in ( a ) Kelvin–Helmholtz (KH) instability theory used in typical hydrodynamic CHF models, ( b ) hydrodynamic CHF...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2018, 140(9): 091501.
Paper No: HT-17-1533
Published Online: May 7, 2018
... Forced convection Heat exchangers Micro heat transfer Two-phase flow Particles Droplets Boiling Condensation Nanoscale heat transfer Heat transfer Fig. 1 Schematic of the experimental setup Fig. 2 Schematic of BPHE Fig. 3 Heat transfer coefficient variations with the...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2018, 140(7): 071501.
Paper No: HT-17-1238
Published Online: April 6, 2018
...Sean H. Hoenig; Richard W. Bonner, III Previous research in dropwise condensation (DWC) on rough microtextured superhydrophobic surfaces has demonstrated evidence of high heat transfer enhancement compared to smooth hydrophobic surfaces. In this study, we experimentally investigate the use of...