Results 51 to 60 of about 1,328 (246)

Refrigerant Distribution Effects on the Performance of Microchannel Evaporators [PDF]

, 2012
The performance of air to refrigerant heat exchangers can be affected greatly by both refrigerant and air flow distribution. Maldistribution of either fluid stream can lead to reduced heat transfer effectiveness of the heat exchanger and thus lower ...
Elbel, Stefan, Bowers, Chad D., Hrnjak, Predrag S., Mai, Helena   +3 more
core   +1 more source

Study of two-phase flow distribution in microchannel heat exchanger header - A numerical simulation

International Journal of Thermofluids, 2022
In the present paper, the two-phase flow distribution in the microchannel heat exchanger (MCHE) header is numerically studied, and the proper void fraction model, two-phase flow and turbulence models are obtained by comparing simulation results with the ...
Wei-Dong Xu, Zhao-Gang Qi, Li-Zhi Wang, Xiao-Dan Yang, Qiang Gao, Ling-Jie Huang, Wen-Quan Tao   +6 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Flow patterns and heat transfer for flow boiling in small to micro diameter tubes [PDF]

, 2008
An overview of the recent developments in the study of flow patterns and boiling heat transfer in small to micro diameter tubes is presented. The latest results of a long-term study of flow boiling of R134a in five vertical stainless steel tubes of ...
Karayiannis, TG, Shiferaw, D, Kenning, DBR, Wadekar, VV   +3 more
core  

Multi‐Stimuli Responsive Magneto‐Coacervate Droplets for Selective Molecular Enrichment and Programmable Manipulation

Advanced Science, EarlyView.
ABSTRACT Coacervate droplets formed via liquid–liquid phase separation offer unique opportunities as microreactors and delivery vehicles due to their ability to selectively concentrate biomolecules and support biochemical reactions. However, their passive nature severely restricts precise spatial and temporal control, posing barriers to practical ...
Kailang Liu, Haocheng Ran, Haohui Ou, Peiying Chen, Cheng Qi, Tiantian Kong, Zhou Liu   +6 more
wiley   +1 more source

Performance analysis of non-circular microchannels flooded with CuO-water nanofluid [PDF]

, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Gupta, KD, Gautam, R, Sharma, AK, 3rd Micro and Nano Flows Conference (MNF2011)   +3 more
core  

High heat flux flow boiling of refrigerant R236fa in parallel microchannels

EPJ Web of Conferences, 2019
This paper presents the results of an experimental study of the heat transfer during flow boiling of refrigerant R236fa in a horizontal microchannel heat sink. The experiments were performed using closed loop that re-circulates coolant. Microchannel heat
Kuznetsov Vladimir, Shamirzaev Alisher, Mordovskoy Alexander   +2 more
doaj   +1 more source

Study on Flow Characteristics of Working Medium in Microchannel Simulated by Porous Media Model

Micromachines, 2020
As a phase change evaporator, a microchannel array heat exchanger is of great significance in the field of microscale heat dissipation. The performance of which strongly depends on the flow resistance, capillary force, and other factors.
Yufan Xue, Chunsheng Guo, Xiaoxiao Gu, Yanfeng Xu, Lihong Xue, Han Lin   +5 more
doaj   +1 more source

Review on Current Application of Microchannel Heat Exchanger

Academic Journal of Science and Technology, 2023
This paper considers various applications of heat exchangers in refrigerators, air conditioning, and nuclear power plants in recent years, current issues and trends, including the required capacity of refrigerator heat exchanger and the corresponding advantages of microchannel heat exchanger, refrigerator application of frost problems, ash problems and
openaire   +1 more source

Processing‐Centric Innovative Strategies for Protonic Ceramic Electrochemical Cells

Advanced Energy Materials, EarlyView.
This review reveals how processing‐centric fabrication strategies govern architecture, microstructure, and interfaces in protonic ceramic electrochemical cells (PCECs), establishing a framework that translates materials innovation into scalable PCEC technologies.
Dongyeon Kim, Seeun Oh, Hyeonggeun Kim, Hyeongmin Yu, Chuancheng Duan, Kang Taek Lee   +5 more
wiley   +1 more source