Results 21 to 30 of about 5,770 (266)

Microchannel Heat Exchangers with Carbon Dioxide [PDF]

, 2001
The objective of the present study was to determine the performance of CO{sub 2} microchannel evaporators and gas coolers in operational conditions representing those of residential heat pumps. A set of breadboard prototype microchannel evaporators and gas coolers was developed and tested. The refrigerant in the heat exchangers followed a counter cross-
Y. Zhao, M.M. Ohadi, R. Radermacher
openaire   +1 more source

Experimental Research on Frosting Characteristics and Heat Transfer Performance of Microchannel Heat Exchanger

Zhileng xuebao, 2021
Frosting is one of the main factors restricting the application of microchannel heat exchangers in refrigeration and air conditioning systems. Aiming at the frosting problem of a microchannel heat exchanger, the frosting mechanism was analyzed based on ...
Sheng Wei, Fang Yongqiang, Lan Qingyun, Hao Xiaoru   +3 more
doaj   +2 more sources

A Numerical Study on Heat Transfer Characteristics of a Novel Rectangular Grooved Microchannel with Al₂O₃/Water Nanofluids

Energies, 2022
The microchannel heat exchanger is one of the most compact and effective heat exchangers used for cooling devices in building air conditioning system, while application of nanofluids in microchannel further enhance its thermal performance due to its much
Xiaoxin Zeng, Hao Yu, Tianbiao He, Ning Mao   +3 more
doaj   +1 more source

Heat exchanger/reactors (HEX reactors): Concepts, technologies: State-of-the-art [PDF]

, 2008
Process intensification is a chemical engineering field which has truly emerged in the past few years and is currently rapidly growing. It consists in looking for safer operating conditions, lower waste in terms of costs and energy and higher ...
Bayer, Benaissa, Boomsma, Bouaifi, Brechtelsbauer, C. Gourdon, Commenge, Costello, Dautzenberg, De Mas, Delsman, Drost, Ehrfeld, Ferrouillat, Ferrouillat, Ferrouillat, Fournier, Friedle, Hardt, Harmsen, Harvey, Haugwitz, Hesselv, Hsing, Ismagilov, Jachuck, Janicke, Jensen, Johnston, Jähnisch, Kim, Ladeveze, M. Cabassud, Mackley, Mackley, Oxley, P. Tochon, Pavel, Pereira, Phillips, Phillips, Prat, Rebrov, Rebrov, Seris, Shah, Stankiewicz, Stankiewicz, Stankiewicz, Stonestreet, Tiggelbeck, Tsouris, Watts, Z. Anxionnaz, Zheng Ni   +54 more
core   +2 more sources

Investigating the performance optimization of an outdoor condenser–evaporator for an electric vehicle heat pump system

Energy Reports, 2021
To analyze the dual-use characteristics of outdoor microchannel heat exchangers in electric vehicle heat pump systems, numerical calculation models of the heat transfer and pressure drop under different states were analyzed and selected.
Ni Liu, Qiang Cui, Huan Li, Kang Li, Yidong Fang, Lin Su, Hua Zhang, Xiaofeng Shan, Xiaotang Jin   +8 more
doaj   +1 more source

CFD analysis of hybrid nanofluid-based microchannel heat sink for electronic chips cooling: Applications in nano-energy thermal devices

Case Studies in Thermal Engineering, 2023
The utilize of microchannel in miniature thermal devices and microchannel heat sinks has advanced the scientific method of heat transfer to a new level, and the fields of electronic device cooling, aerospace industries, bioengineering, and materials ...
Yu-Ming Chu, Umar Farooq, Nidhish Kumar Mishra, Zubair Ahmad, Fakhar Zulfiqar, Sumeira Yasmin, Shan Ali Khan   +6 more
doaj   +1 more source

Optimal design of multi-channel microreactor for uniform residence time distribution [PDF]

, 2010
Multi-channel microreactors can be used for various applications that require chemical or electrochemical reactions in either liquid, gaseous or multi phase.
A Ziogas, C Aubert, Cyril Renault, DG Vlachos, ER Delsman, ES Cho, GL Morini, GL Morini, H Löwe, J Pitakarnnop, J-Y Jang, JM Commenge, JM Commenge, K Koura, M Bahrami, M Saber, M Saber, P Gravesen, Patrick Cognet, RB Peterson, RG Deissler, RK Shah, S Colin, S Colin, S Shoji, SG Kandlikar, Stéphane Colin, Stéphane Orieux, Théo Tzédakis, Y Chen   +29 more
core   +3 more sources

Experimental characterization of a hybrid impinging microjet-microchannel heat sink fabricated using high-volume metal additive manufacturing

International Journal of Thermofluids, 2020
A high-performance water-cooled micro heat sink for the thermal management of high heat flux microelectronics was designed, fabricated, and tested. The heat sink design leverages a multi- metal electrodeposition additive manufacturing process to produce ...
R. Kempers, J. Colenbrander, W. Tan, R. Chen, A.J. Robinson   +4 more
doaj   +1 more source

Optimization of porous microchannel heat exchanger

Journal of Physics: Conference Series, 2017
The technical progress in information and communication sphere leads to a sharp increase in the use of radio electronic devices. Functioning of radio electronics is accompanied by release of thermal energy, which must be diverted from the heat-stressed element. Moreover, using of electronics at negative temperatures, on the contrary, requires supply of
N N Kozhukhov, D A Konovalov
openaire   +1 more source

A new microchannel heat exchanger configuration using CNT-nanofluid and allowing uniform temperature on the active wall

Case Studies in Thermal Engineering, 2022
The present study presents a three-dimensional numerical analysis using the finite element method of nanofluid enhanced heat transfer in micro heat exchanger equipped with triangular fins.
Mohamed Omri, Hichem Smaoui, Luc Frechette, Lioua Kolsi   +3 more
doaj   +1 more source