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Keywords: water
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2012, 134(11): 112902.
Published Online: September 28, 2012
... 09 2010 03 12 2011 Subcooled flow boiling experiments with water at 0.2-atm pressure assess the utility of fine filament screen laminate enhanced surfaces as high-performance boiling surfaces. Experiments are conducted on vertically oriented, multilayer copper laminates in distilled...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031004.
Published Online: January 11, 2012
...Chul-Hwa Song; Seok Cho; Hyung-Seok Kang The phenomena of direct contact condensation (DCC) of a steam jet submerged in a water pool occur because of the actuation of steam discharging devices in many industrial processes. There are practically two kinds of technical concerns to consider. The first...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020909.
Published Online: December 19, 2011
...Ruander Cardenas; Vinod Narayanan An experimental study of jet impingement boiling is presented for water under saturated and subcooled conditions. Unique to this study is the documentation of boiling curves of a submerged water jet under subatmospheric conditions. Data are reported at a fixed...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020901.
Published Online: December 13, 2011
...Hai Trieu Phan; Nadia Caney; Philippe Marty; Stéphane Colasson; Jérôme Gavillet The experiments were performed to study the effects of surface wettability on flow boiling of water at atmospheric pressure. The test channel is a single rectangular channel 0.5 mm high, 5 mm wide and 180 mm long...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020905.
Published Online: December 13, 2011
... convection heat transfer of water in an inclined upward tube with an inclination angle of 20 deg and an inner diameter of 26 mm. According to the experimental data, the effects of pressure and heat flux on heat transfer of water were analyzed in detail. In the subcritical pressure region, it was found...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2012, 134(2): 021502.
Published Online: December 13, 2011
...) on the outside surface of a smooth copper tube were measured at the saturation temperature of 6.7 °C; water flows inside the tube and provides heat to the refrigerants to boil (thus, water-heated boiling). Measurements showed that the refrigerant of a higher vapor pressure has a higher heat transfer coefficient...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. January 2012, 134(1): 014502.
Published Online: November 8, 2011
...] ionic liquid in water is 30%. The two streams contract intensely with the increasing of wall-liquid temperature differential and the reducing of flow rate. It can be concluded that this novel flow pattern may affect the heat- and mass-transfer in the chemical processes. Further investigations...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2011, 133(12): 121502.
Published Online: October 6, 2011
...). The main difference between them lies in the condenser section. In the laboratory, cooling water was used to remove heat from the mini heat pipe, while at the ISS, fins and air fan were employed. In gravity, three different working fluids were tested: water, acetone, and methanol, while...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2011, 133(11): 111501.
Published Online: August 31, 2011
... trend has been observed with variation in the surface roughness of the heater as well. boiling copper evaporation heat transfer nanoparticles nucleation sorption surface roughness suspensions thermal conductivity two-phase flow water metallic nanofluids pool boiling nucleation site...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 101506.
Published Online: August 23, 2011
...A. Sathyabhama; T. P. Ashok Babu Visualization of bubble nucleation during nucleate pool boiling outside a vertical cylindrical heated surface was done for ammonia-water binary mixture in order to obtain a descriptive behavior of the boiling, which was directly compared with the measured heat...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 102301.
Published Online: August 19, 2011
...Mehmet Akif Ezan; Aytunc Erek; Ibrahim Dincer In this study, solidification process inside a water filled rectangular cavity is numerically investigated. The mathematical model is validated by comparing the current numerical predictions with the available analytical, numerical, and experimental...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 101505.
Published Online: August 15, 2011
... in the formation of the bands is examined using a simple two-dimensional force balance. The success of this examination provides an insight to the mechanisms employed in the formation of banded films. The authors would like to recognize the assistance of Christian Korte in conducting some of the ammonia water...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 102901.
Published Online: August 15, 2011
... and water were used as the test fluids. Results were presented for the Nusselt number and the pressure drop over a wide range of gas superficial velocity (1.24–40.1 m/s), liquid superficial velocity (0.57–2.13 m/s), and wall heat flux (0.34–0.95 MW/m 2 ). The results showed that the Nusselt number increased...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 081801.
Published Online: May 2, 2011
... is used for the nanofluid modeling. The base fluid used in the analyses as a basis for comparison was pure water. Two types of nanofluids, namely, water- Al 2 O 3 with a mean diameter of 47 nm and water-CuO with a mean diameter of 29 nm, each one with three different volume fractions, are utilized...
Journal Articles
Article Type: Photo Gallery
J. Heat Transfer. August 2011, 133(8): 080905.
Published Online: April 27, 2011
... texture water wetting 2011 American Society of Mechanical Engineers ...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 082401.
Published Online: April 26, 2011
... terminated headgroups and self-assembled monolayers (SAMs) with different chain lengths are used to recondition and modify the hydrophilicity of silica surface, and vibrational matching between crystalline silica and liquid water, where three-dimensional nanopillars are grown at the interface...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2011, 133(7): 071201.
Published Online: March 30, 2011
...Stephen M. Zielinski; Anthony A. Sansone; Matthew Ziolkowski; Rusi P. Taleyarkhan The combination of a hot fluid (e.g., molten metals) and a cold vaporizing fluid (e.g., water) can undergo spontaneous or externally assisted explosive interactions. Such explosions are a well-established contributor...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2011, 133(6): 061502.
Published Online: March 8, 2011
... transfer performance in an OHP. These four OHPs consist of an open loop water OHP, an open loop acetone OHP, a closed loop water OHP, and a closed loop acetone OHP. These copper OHPs were constructed identically with all six turns in the same plane. They were constructed out of 1.65 mm inner diameter...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2011, 133(6): 061501.
Published Online: March 2, 2011
.... This model was applied to the condensation of the saturated binary vapor of ethanol and water, and was examined using experimental data at vapor pressure values of 101.33 kPa (provided by Utaka and Wang, 2004, “Characteristic Curves and the Promotion Effect of Ethanol Addition on Steam Condensation Heat...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2011, 133(5): 052401.
Published Online: February 1, 2011
... with the experimental data of CuO/water, Al 2 O 3 /water, TiO 2 /water, Cu/water, Au/water, Ni/water, TiO 2 /ethylene glycol, and Al/ethylene glycol (EG) nanofluids and a good agreement between the theory and the experimental data is observed. The absolute average deviation of the model for thermal conductivity...