Results 71 to 80 of about 1,328 (246)

Forced convection heat transfer in micro heat sinks with square and circular configuration

Nigerian Journal of Technological Development, 2023
This paper reports the results of three-dimensional numerical optimisation of microchannel heat exchanger with square and circular cooling channels.
Nahum Yustus Godi, L. B. Zhengwuvi, Moses Omolayo Petinrin   +2 more
doaj  

Metal nanostructure‐coupled label‐free localized surface plasmon resonance biosensors for rapid and sensitive disease diagnosis

BMEMat, EarlyView.
LSPR biosensing enables rapid, sensitive, and low‐sample‐volume detection of biomarkers, with broad applications in diagnosing cancer, infectious, and chronic diseases. Advances in nanostructure design, micro/nanofabrication, and microfluidic integration have expanded the potential of LSPR sensors in biomedical diagnostics.
Zhaoxin Geng, Yunfei Sha, Jiongyan Yang, Hongru Yang, Xiao Liang   +4 more
wiley   +1 more source

Simulation-Based Comparison of Optimized AC Coils Using Small Diameter Copper and Aluminum Micro-Channel Tubes [PDF]

, 2012
Demands for higher energy efficiencies in both residential and commercial refrigeration and air conditioning systems have resulted in a trend toward heat exchanger designs that are more compact with higher capacities for heat transfer. Traditional copper
Hipchen, John C., Nasuta, Dennis, Weed, Robert D., Zhang, Ming   +3 more
core   +1 more source

Enhanced Mass Transport and Elevated Active Site Density for Highly Efficient Overall Water Splitting Over Delignification‐Engineered Carbonized Wood

Carbon Energy, EarlyView.
Controlled delignification pretreatment tailors the hierarchical porous structure of wood to improve ion transport and create abundant anchoring sites for Ni/Ni(OH)2 catalysts. The optimized electrode shows enhanced mass transfer, increased active site density, and superior overall water‐splitting performance, demonstrating delignification as an ...
Ting He, Jiang Wei, Yakun Gao, Jianrong Zeng, Ziyun Xi, Hongling Qin, Qiuhong Lu, Jingjing Chen, Xin Feng, Xiaohua Lu, Libo Yao, Honglei Zhang, Lilong Zhang, Ge Meng, Lejin Xu, Jiahua Zhu   +15 more
wiley   +1 more source

Local heating effects on flow and heat transfer in microchannels [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Peng, XF, Liu, JT   +2 more
core  

Modeling of heat-hydraulic characteristics of microchannel heat transfer elements based on the matrix of silicon monocrystals

Наука. Инновации. Технологии, 2022
The construction of a heat exchange element based on a matrix of silicon whiskers for thermal stabilization systems of miniature heat sources with specific power up to 100 W / cm2 operating over a wide range of ambient temperatures is proposed.
Dmitry Albertovich Konovalov
doaj  

Heat Transfer and Pressure Drop Characteristics in Straight Microchannel of Printed Circuit Heat Exchangers

Entropy, 2015
Performance tests were carried out for a microchannel printed circuit heat exchanger (PCHE), which was fabricated with micro photo-etching and diffusion bonding technologies.
Jang-Won Seo, Yoon-Ho Kim, Dongseon Kim, Young-Don Choi, Kyu-Jung Lee   +4 more
doaj   +1 more source

Photothermal CO2 Hydrogenation: Reactions, Mechanisms, and Catalyst Design

Carbon Energy, EarlyView.
Reactions, mechanisms, and catalyst design for photothermal CO2 hydrogenation. ABSTRACT Photothermal CO2 hydrogenation has attracted extensive attention because it provides a green and sustainable approach to fuel and chemicals production. The photothermal catalyst plays a critical role in CO2 conversion through a range of reactions.
Shuai Yan, Yuting Wang, Wenhao Zhao, Jinqiang Zhang, Guangyao Chen, Lei Jiang, Yun Wang, Yingquan Chen, Xiong Zhang, Xianhua Wang, Kuo Zeng, Hongqi Sun, Shuxin Ouyang, Yonggang Yao, Haiping Yang, Hanping Chen   +15 more
wiley   +1 more source

Research on the Wet Performance and Long-term Characteristics of Microchannel Heat Exchanger with Surface Coating

Zhileng xuebao, 2014
The wet performance of microchannel heat exchanger (Fin Pitch=1.1mm) with hydrophobic, hydrophilic and without surface coating were studied under different conditions experimentally.
Liu Luming, Shi Junye, Wang Ying, Ge Fanggen, Wang Feng, Wei Qingqi, Chen Jiangping   +6 more
doaj  

Beyond Furnaces: Harnessing In Situ Joule Heating for Efficient C1 Catalysis

Carbon Energy, EarlyView.
Joule‐heated catalysis directly converts electrical energy into localized heat within conductive catalysts, overcoming the heat‐transfer limitations of conventional furnaces. This review summarizes recent advances in C1 molecule conversion, including CO2 methanation, reforming for hydrogen production, and HCHO/CO oxidation, while highlighting ...
Xue Kong, Tiantian Su, Faiza Meharban, Shengbin Cao, Jingsan Xu, Chao Lin, Xiaopeng Li, Yejian Xue, Wei Luo   +8 more
wiley   +1 more source