Results 11 to 20 of about 60,972 (209)

Experimental analysis of photovoltaic thermal collector (PVT) with nano PCM and micro-fins tube counterclockwise twisted tape nanofluid

Case Studies in Thermal Engineering, 2023
A hybrid PVT (photovoltaic thermal system) nanofluid circulation system was tested, which included a micro-fin tube (inner grooved) and twisted tape with nano PCM (phase change material).
Abdulsahib M. Bassam, Kamaruzzaman Sopian, Adnan Ibrahim, Anwer B. Al-Aasam, Mojtaba Dayer   +4 more
doaj   +1 more source

Diabatic visualization shows effects of micro-fins on evaporation of R410A: Smooth, axial micro-fin, and helical micro-fin tubes

International Journal of Heat and Mass Transfer, 2020
Abstract A novel approach to visualize the flow boiling inside a clear micro-fin tube under diabatic conditions is presented. Transparent smooth, axial micro-fin, and helical micro-fin tubes are made by 3D printing. The 3D printed tube is placed inside a glass tube and heated by the transparent secondary fluid flowing between the two tubes for ...
Cheng-Min Yang, Pega Hrnjak
openaire   +2 more sources

Multi-objective optimization of micro-fin helical coil tubes based on the prediction of artificial neural networks and entropy generation theory

Case Studies in Thermal Engineering, 2021
The heat transfer, flow resistance and entropy generation characteristics of micro-fin helical coil tubes (MFHCTs) are investigated numerically. MFHCT with different fin numbers (2≤N≤6), coil pitches (150mm≤P≤450mm), coil diameters (600mm≤D≤1200mm) and ...
Jiaming Cao, Xuesheng Wang, Yuyang Yuan, Zhao Zhang, Yanbin Liu   +4 more
doaj   +1 more source

Experimental study on R410A flow boiling heat transfer outside three enhanced tubes with different fin structures

AIP Advances, 2020
In order to further explore the influence of the outer fin structure on flow boiling heat transfer, the refrigerant R410A was used to conduct flow boiling heat transfer experiments outside three kinds of enhanced tubes with different outer fin structures
Zhen Li, Jianghui Zhang, Yan He
doaj   +1 more source

Characteristics of a micro-fin evaporator: Theoretical analysis and experimental verification [PDF]

, 2013
A theoretical analysis and experimental verification on the characteristics of a micro-fin evaporator using R290 and R717 as refrigerants were carried out.
Fan Xiao-Wei, Liang Yao-Hua, Wang Fang, Zheng Hui-Fan   +3 more
core   +1 more source

Carbon Dioxide Heat Transfer Coefficients And Pressure Drops During Flow Boiling: Assessment Of Predictive Methods [PDF]

, 2010
Among the alternatives to the HCFCs and HFCs, carbon dioxide emerged as one of the most promising environmentally friendly refrigerants. In past years many works were carried out about CO2 flow boiling and very different two-phase flow characteristics ...
A. Rosato, G. P. Vanoli, MASTRULLO, RITA MARIA ANTONIA, MAURO, ALFONSO WILLIAM   +3 more
core   +1 more source

Numerical Investigation on Flow Boiling Heat Transfer in Elliptic Microchannel Heat Exchanger with Micro Fins

Chemical Engineering Transactions, 2022
The results of numerical research on boiling heat transfer of R410A refrigerant in an elliptic tube with four microchannels and micro fins are presented in this paper.
Bingcheng Li, Junming Hou, Weihao Ling, Keke Xu, Qiang Gao, Min Zeng   +5 more
doaj   +1 more source

Experimental Investigation of the Condensation Heat Transfer Coefficient of R134a inside Horizontal Smooth and Micro-Fin Tubes

Energies, 2017
The condensation heat transfer coefficient of R134a was experimentally studied inside two smooth and four micro-fin tubes. The working conditions and structural parameters of the test tubes were selected as the influencing factors, and the experiment was
Qingpu Li, Leren Tao, Lei Li, Yongpan Hu, Shengli Wu   +4 more
doaj   +1 more source

Experimental analysis for the photovoltaic thermal collector (PVT) with nano PCM and micro-fins tube nanofluid

Case Studies in Thermal Engineering, 2023
The efficiency of the photovoltaic cell ultimately decreases as its temperature rises. A hybrid PVT (photovoltaic thermal system) is one of the innovative techniques employed to increase that efficiency.
Abdulsahib M. Bassam, Kamaruzzaman Sopian, Adnan Ibrahim, Mohd Faizal Fauzan, Anwer B. Al-Aasam, Ghaith Yahay Abusaibaa   +5 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