Results 11 to 20 of about 149,415 (317)

Study of a laminar falling film flowing over a wavy wall column: Part I. Numerical investigation of the flow pattern and the coupled heat and mass transfer [PDF]

, 2001
Flow pattern and heat and mass transfer characteristics for a film flowing over a vertical wavy column are numerically investigated in a laminar flow regime.
Prevost, Michel, Negny, Stéphane, S Negny, M Prevost, Meyer, Michel, M Meyer   +5 more
core   +1 more source

Refrigerant forced-convection condensation inside horizontal tubes [PDF]

, 1968
High vapor velocity condensation inside a tube was studied theoretically. The heat transfer coefficients were calculated by the momentum and heat transfer analogy.
Bae, S., Bae, Soonhoon, J.S. Maulbetsch, Maulbetsch, John S., S. Bae, Maulbetsch, J.S., W.M. Rohsenow, Rohsenow, Warren M., Rohsenow, W.M.   +8 more
core   +1 more source

Flow Boiling Heat Transfer of R134a in a Horizontal Smooth Tube: Experimental Results, Flow Patterns, and Assessment of Correlations

Energies, 2022
This study presents an extensive evaluation of heat transfer characteristics, flow patterns, and pressure drop for saturation pressures ranging from 460–660 kPa in a horizontal smooth tube of 5 mm internal diameter using R134a as the working fluid.
Ernest Gyan Bediako, Petra Dančová, Tomáš Vít   +2 more
doaj   +1 more source

Flow condensation heat transfer coefficient and pressure drop data for R134a alternative refrigerants R513A and R450A in a 0.95-mm-diameter minichannel

Data in Brief, 2022
Flow condensation heat transfer coefficients and pressure drop data were collected in a small-scale vapor compression cycle. The test section consisted of seven parallel, 0.95-mm-diameter square channels which utilized a heat flux block to measure the ...
Jordan A. Morrow, Melanie M. Derby
doaj   +1 more source

The design of mini/micro heat exchangers: A world of opportunities and constraints [PDF]

, 2018
Micro heat exchangers and heat sinks broadened their use in many technological fields during the last two decades. The reduction of the dimensions of the channels allows to obtain ultra-compact heat exchangers characterized by higher surface-to-volume ...
Gian Luca Morini, Morini, G. L., Brandner, J. J., Morini, Gian Luca, Juergen J. Brandner, Brandner, Juergen J.   +5 more
core   +1 more source

The impact of separated flow on heat and mass transfer [PDF]

, 1990
An investigation of the effect of flow separation on heat (or mass) transfer is underway. This research, sponsored by the Department of Energy (Contract No. FG02-87ER13800), is planned to enhance our understanding of the fundamental mechanisms governing the process. This report summarizes previous accomplishments and briefly describes works done during
Goldstein, R.J., Jabbari, M.Y.
openaire   +2 more sources

Visualization of R1233zd(E) Flow Boiling in Parallel Mini-channels

Zhileng xuebao, 2023
This study conducts a visual experimental investigation on low-pressure refrigerant R1233zd(E) in a parallel mini-channel heat sink. The evolution and distribution of flow patterns in parallel channels and the influence of flow patterns on heat-transfer ...
Zhang Zhao, Fang Yidong, Xu Dan, Hu Lingren, Wang Yuchen, Huang Yuqi   +5 more
doaj   +2 more sources

Co-Combustion of Coal and Biomass: Heating Surface Slagging and Flue Gases

Fire
An experimental study was carried out on the ignition and combustion processes of particles (100–200 µm in size) of coals of different degrees of metamorphism and biomass, as well as mixtures based on them, under conditions of conductive and convective ...
Andrey Zhuikov, Dmitrii Glushkov, Andrey Pleshko, Irina Grishina, Stanislav Chicherin   +4 more
doaj   +1 more source

Experimental Study of Horizontal Flow Boiling Heat Transfer Coefficient and Pressure Drop of R134a from Subcooled Liquid Region to Superheated Vapor Region

Energies, 2022
For the past few years, research in the field of flow boiling heat transfer has gained immense popularity for unravelling the dominant mechanism responsible for controlling heat transfer and identifying a parametric trend for understanding the ...
Ernest Gyan Bediako, Petra Dančová, Tomáš Vít   +2 more
doaj   +1 more source

Experimental determination of natural convection heat transfer coefficients in an attic shaped enclosure

, 2010
Heat transfer by natural convection in triangular enclosures is an area of significant importance in applications such as the design of greenhouses, attics and solar water heaters.
Carson, James K., Duke, Mike, Anderson, Timothy Nicholas   +2 more
core   +1 more source