Results 231 to 240 of about 5,770 (266)
Some of the next articles are maybe not open access.
Advanced Microchannel Heat Exchangers: Structural Analysis
Heat Transfer, Volume 2, 2004Since conventional refrigerants have considerable ozone depleting and global warming effects (CFC/HCFC; HFC), Carbon Dioxide (CO2) is being investigated as an alternative refrigerant in vapor compression systems. Due to favorable thermo-physical properties, CO2 when utilized in microchannel heat exchangers (HXs), can result in heat exchangers that have
G. Kuang +3 more
openaire +1 more source
A Microchannel Heat Exchanger for Electronics Cooling Applications
ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels, 2008The power consumption of electronic devices, such as semiconductor diode laser bars, has continually increased in recent years while the heat transfer area for rejecting the associated thermal energy has decreased. As a result, the generated heat fluxes have become more intense making the thermal management of thes systems more complicated. Air cooling
Joseph Dix, Amir Jokar, Robert Martinsen
openaire +1 more source
Impact of airside fouling on microchannel heat exchangers
Applied Thermal Engineering, 2018Abstract In this study, the performance of the microchannel heat exchanger (MCHX) in domestic refrigerators was tested before and after fouling. The louvre-fin and plain-fin heat exchanger (HX) with fin pitches from 1.5 mm to 3 mm were tested.
Chengquan Zhang +5 more
openaire +1 more source
Heat Transfer in Microchannel Heat Exchanger With Enhanced Surface Structure
Volume 8: Fluids Engineering; Heat Transfer and Thermal Engineering, 2022Abstract A simulation-based study is carried out on a counter-flow minichannel heat exchangers with smooth and staggered pinfins. The heat exchangers consist of two layers of hot and cold fluids. Each layer contained 10 minichannels with width of 2 mm and length of 100 mm; the height of the minichannel is 2 mm and the spacing between ...
Fadi Alnaimat +2 more
openaire +1 more source
Thermal Performance of Crossflow Microchannel Heat Exchangers
Industrial & Engineering Chemistry Research, 2010Forced-convection heat transfer in a crossflow microchannel heat exchanger (MCHE) was investigated via experiment. The microchannels on the plates of the MCHE were machined using a chemical etching method from 0.4-mm-thick stainless steel plates, and the plates were bonded together by vacuum diffusion bonding.
Haishan Cao, Guangwen Chen, Quan Yuan
openaire +1 more source
The Flow Characteristics of a New Microchannel Heat Exchanger
ASME 2014 Small Modular Reactors Symposium, 2014Cooling technology is very important for the safe operation of nuclear power plant. Microchannel heat exchangers have been treated as one of the most potential cooling technologies. Flow characteristics of microchannels (hydraulic diameter is 100 μm) with a new structure, with which obstructions were placed along channels walls, have been investigated ...
Tiantian Zhang, Jing Li
openaire +1 more source
Analysis of microchannel heat exchangers using FEM
International Journal of Numerical Methods for Heat & Fluid Flow, 2001A finite element method is applied to evaluate the performance of microchannel heat exchangers that are used in electronic packaging. The present approach is validated against the CFD data available in the literature. A comparison of the predicted results with other available results obtained from different concepts shows that the present method is ...
Quadir, G. A. +2 more
openaire +1 more source
Optimization of Heat Exchange in Manifold-Microchannel Grooves
Journal of Heat Transfer, 2018Manifold-microchannel (MM) combinations used on heat transfer surfaces have shown the potential for superior heat transfer performance to pressure drop ratio when compared with chevron-type corrugations for plate (frame) heat exchangers (PHEs). This paper presents an advanced genetic algorithm (GA)-based procedure for analyzing and optimizing the MM ...
Foluso Ladeinde +2 more
openaire +1 more source
Parametric Study of Pin-Fins Microchannel Heat Exchanger
2019MEMS heat exchangers use microchannels to increase the surface area of contact between the moving fluids. MEMS heat exchangers are typically utilized for processor chip cooling applications. This study investigates the influence of geometric and operating parameters on performance of a pin-fins microchannel heat exchangers.
Mohammed Ziauddin +2 more
openaire +1 more source
Exergy analysis of microchannel heat exchangers
2022This study investigates the exergetic efficiencies of four plain microchannel heat exchangers under single-phase and two-phase flow conditions using de-ionised water as the working fluid. The friction factor and heat transfer coefficient data of microchannels are obtained using experimental studies from the literature.
openaire +1 more source