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Keywords: pressure drop
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2023, 145(11): 113801.
Paper No: HT-23-1014
Published Online: September 4, 2023
.... Turbomach. , 136 ( 5 ), p. 051013 . 10.1115/1.40252 09 01 2023 18 07 2023 04 09 2023 jet impingement cooling liquid crystal transient heat transfer pressure drop combustion Optimized cooling is a necessity in modern day gas turbines, which operate at thermal...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2023, 145(4): 041802.
Paper No: HT-22-1400
Published Online: January 23, 2023
... of experiments on total heat transfer and short-circuit heat transfer, the Nusselt number can be calculated. The pressure drop across a bayonet tube determined the friction factor. In examining a range of Reynolds numbers, Effectiveness and figure of merit have been resolved. It has been observed...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. August 2021, 143(8): 082501.
Paper No: HT-21-1132
Published Online: June 28, 2021
.../s and 5 m/s air velocity [ 11 , 12 ]. Further, the mass flow rate has more effect on the pressure drop of the nanofluid rather than the nanoparticle loading. Contradicting this, an increase in the concentration of multiwalled carbon nanotubes dispersed in water results in a reduction of heat...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2021, 143(4): 042501.
Paper No: HT-19-1251
Published Online: February 23, 2021
... in the condition range (10 – 30 °C). Under the test range, the accelerating pressure drop is insignificant compared to friction. Comparing to the results, Mishima, K., and Hibiki, T. (1996, “Some Characteristics of Air-Water Two-Phase Flow in Small Diameter Vertical Tubes,” Int. J. Multiph. Flow, 22(4), pp. 703...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2020, 142(12): 121601.
Paper No: HT-19-1673
Published Online: September 18, 2020
... have been measured under the uniform and nonuniform heat flux conditions. In addition, the pressure drops inside the heat sink are also obtained. A minichannel heat sink (MCHS) with the same channel dimensions and inlet/outlet configuration is tested too. A comparison between MCHS and PSFHS...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2020, 142(7): 071603.
Paper No: HT-19-1597
Published Online: May 29, 2020
... that of the smooth tube. Heat transfer enhancement of the 1EHTa and 1EHTb tube was mainly due to the complex roughness surface structures that created swirling and increased the interface turbulence. The condensation heat transfer coefficient increased slightly with increasing mass flux. The pressure drop penalty...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2016, 138(2): 022901.
Paper No: HT-15-1020
Published Online: September 2, 2015
...Zan Wu; Bengt Sundén Experimental single-phase, condensation, and evaporation (flow boiling) pressure drop data from the literature and our previous studies were collected to evaluate previous frictional pressure drop correlations for horizontal microfin tubes of different geometries. The modified...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. January 2015, 137(1): 012601.
Paper No: HT-13-1619
Published Online: October 28, 2014
... fiber suspension flows in a pipe, the fiber suspension network can behave either as a plug or be disrupted if the shear rate is high enough. The change in behavior with increasing velocity produces different flow regimes which are responsible for the variations in the pressure drop characteristics...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2014, 136(6): 061704.
Paper No: HT-13-1298
Published Online: March 13, 2014
... at different temperatures close to the melting point of the material (20–30 °C). Pressure drop measurements under turbulent flow conditions were recorded for 6 MPCM samples at various concentrations. The pressure drop of the MPCM slurry was comparable to that of water despite the higher viscosity of the slurry...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. September 2013, 135(9): 091602.
Paper No: HT-12-1312
Published Online: July 26, 2013
... not prevail in the experiments. Moreover, experimental determination of friction pressure drop involves additional uncertainty owing to the necessity to estimate the momentum or acceleration pressure gradient. These methods involve gross approximations and, in addition, require further approximate methods...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. August 2013, 135(8): 081502.
Paper No: HT-11-1080
Published Online: July 11, 2013
... as the test fluid were performed under high pressure conditions at the Japan Atomic Energy Agency (JAEA) by using a circular tube. Void fraction, pressure drop, and heat transfer coefficient data were obtained under 15, 17, and 18 MPa. This paper discusses the steam-water pressure drop and void fraction...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. March 2013, 135(3): 031503.
Paper No: HT-12-1273
Published Online: February 11, 2013
... L ) = ρ l ∫ 0 δ u l dy = ρ l [ δ 2 τ δ 2 μ l - δ 3 3 μ l ( dP l dx ) ] Based on the momentum conservation, the pressure drop in the vapor zone can be expressed...
Journal Articles
Publisher: ASME
Article Type: Evaporation, Boiling, and Condensation
J. Heat Mass Transfer. August 2012, 134(8): 081501.
Published Online: June 5, 2012
... significant pressure drop at the same operating condition as the microtube without orifice. The 20% area ratio orifice shows better performance at low mass fluxes (<1000 kg/m 2 · s). Whereas, at high mass fluxes (>2000 kg/m 2 · s), 50% and 35% area ratio orifices are efficient in stabilizing the flow...
Journal Articles
Publisher: ASME
Article Type: Heat Exchangers
J. Heat Mass Transfer. July 2012, 134(7): 071801.
Published Online: May 24, 2012
...Xinyu Wei; Chunhui Dai; Yun Tai; Fuyu Zhao This paper presents a double-tube once-through steam generator (DOTSG) consisting of the outer straight tube and the inner helical tube. The tube length and pressure drop of are important parameters in optimal design of DOTSG. For optimal design...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2011, 133(10): 101802.
Published Online: August 11, 2011
...Hie Chan Kang; Gil Woong Jun The present work was conducted to investigate the air-side pressure drop and heat transfer performance of the louver fin-tube heat exchanger for automobile applications. Fourteen kinds of louver fin geometries with different louver pitches and angles were tested...
Journal Articles
Publisher: ASME
Article Type: Thermal Issues In Emerging Technologies
J. Heat Mass Transfer. June 2011, 133(6): 060904.
Published Online: March 4, 2011
... behavior of these new enhanced surfaces, which present high heat transfer area per unit of volume at the expense of high pressure drop. The paper presents the experimental heat transfer and pressure drop measurements relative to air flowing in forced convection through four different aluminum foams, when...