Results 181 to 190 of about 5,111 (253)

Condensation Heat Transfer Inside Multi-Port Minichannels

ASME 2nd International Conference on Microchannels and Minichannels, 2004
In this paper the experimental heat transfer coefficients measured during condensation of R134a and R410A inside multiport minichannels are presented. The need for experimental research on condensation inside multiport minichannels comes from the wide use of those channels in automotive air-conditioners.
CAVALLINI, ALBERTO, DEL COL, DAVIDE, DORETTI, LUCA, MATKOVIC, MARKO, ROSSETTO, LUISA, ZILIO, CLAUDIO   +5 more
openaire   +2 more sources

Condensation of propane in vertical minichannels

International Journal of Heat and Mass Transfer, 2019
Abstract Experiments and models for in-tube pressure drop and heat transfer characteristics during condensation of propane at low mass fluxes (G = 75–150 kg m−2 s−1) in vertical minichannels (D = 1.93 mm) for two saturation temperatures (Tsat = 47 °C and 74 °C) are presented. Trends in heat transfer coefficients and frictional pressure gradients with
Daniel L. Murphy, Malcolm P. Macdonald, Allison J. Mahvi, Srinivas Garimella   +3 more
openaire   +1 more source

Rivulet Flows in Microchannels and Minichannels

International Journal of Emerging Multidisciplinary Fluid Sciences, 2010
Thin liquid films or rivulets may provide very high heat transfer intensity, especially in the micro region near contact-line and may be used for cooling of microelectronic equipment or engines. The paper focuses on the recent progress that has been achieved in the understanding of the rivulet flow phenomena in micro/mini-channels through conducting ...
Kabov, Oleg, Bartashevich, Maria, Cheverda, Vyacheslav   +2 more
openaire   +1 more source

Demonstration of CTE-Matched Two-Phase Minichannel Heat Sink

Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, 2023
Pumped two-phase cooling systems have been identified as effective thermal management solutions to remove a large amount of heat, provide excellent temperature uniformity across the device, and operate within low pumping power compared to their single ...
M. Shaeri, C. Chen, R. Bonner, Maksym Demydovych   +3 more
semanticscholar   +1 more source

Evaluation of dynamic correction of turbulence wall boundary conditions to simulate roughness effect in minichannel with rotating walls

International Journal of Numerical Methods for Heat & Fluid Flow, 2023
Purpose The purpose of this study is an assessment of the existing roughness models to simulate the flow in the narrow gap between corotating and rough disks.
Mohammadsadegh Pahlavanzadeh, K. Rusin, W. Wróblewski   +2 more
semanticscholar   +1 more source

Refrigerant Distribution in Minichannel Evaporator Manifolds

HVAC&R Research, 2007
The effects of geometry and operating conditions on the distribution of refrigerant R-410A in heat exchangers with horizontal manifolds and vertically oriented minichannels were experimentally investigated to provide the essential design information for the minichannel evaporators.
Yunho Hwang, Dae-Hyun Jin, Reinhard Radermacher   +2 more
openaire   +1 more source

Investigation of an improved cold plate design with circuitous minichannel: a computational study involving the effect of conjugate heat transfer

International Journal of Numerical Methods for Heat & Fluid Flow, 2023
Purpose This study aims to investigate a new circuitous minichannel cold plate (MCP) design involving flow fragmentation. The overall thermal performance and the temperature uniformity analysis are performed and compared with the traditional serpentine ...
J. Mohapatra, M. Moharana
semanticscholar   +1 more source

Boiling Heat Transfer in Minichannels

2006
the capillary forces predominate, and they determine flow pattern and boiling heat transfer. The interest for study of boiling heat transfer in minichannels increases at last decade due to obtained possibility to makes the channels of millimeter’s and micron’s size for application in wide range of industrial devices for enhancement of heat and mass ...
V.V. Kuznetsov, O.V. Vitovsky, A.S. Shamirzaev   +2 more
openaire   +1 more source

Application of roughness models to stationary and rotating minichannel flows

International Journal of Numerical Methods for Heat & Fluid Flow
Purpose The performance of a bladeless Tesla turbine is closely tied to momentum diffusion, kinetic energy transfer and wall shear stress generation on its rotating disks. The surface roughness adds complexity of flow analysis in such a domain.
Mohammadsadegh Pahlavanzadeh, S. Rulik, W. Wróblewski, K. Rusin   +3 more
semanticscholar   +1 more source

Cylindrical Oblique Fin Minichannel Structure

2014
A novel cylindrical oblique fin minichannel heat sink, in the form of an enveloping jacket, is proposed to be fitted over cylindrical heat sources. This chapter provides a description on the numerical simulation and experimental investigation for both conventional and cylindrical oblique fin minichannel, a similarity analysis and parametric study for ...
Yan Fan, Poh Seng Lee, Pawan Kumar Singh, Yong Jiun Lee   +3 more
openaire   +1 more source