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Experimental Study of Condensation Heat Transfer and Pressure Drop inside a Small Diameter Microfin and Smooth Tube at Low Mass Flux Condition

open access: yesApplied Sciences, 2018
This study was made to investigate the condensation local heat transfer and adiabatic pressure drop of R134a inside a 2.5 mm outside diameter smooth and microfin tube at low mass flux condition.
M. Khairul Bashar   +3 more
doaj   +3 more sources

Enhancing Heat Transfer Performance: Nanofluids Application in Helical Microfin Tube Concentric Heat Exchangers [PDF]

open access: yesE3S Web of Conferences, 2023
This manuscript explores the application of nanofluids in helical microfin tube concentric heat exchangers and investigates the potential for improved heat transfer performance.
Tama Dida Efendi Hilbran   +4 more
doaj   +1 more source

Heat transfer performance of R1234yf for convective boiling in horizontal micro-fin and smooth tubes [PDF]

open access: yesE3S Web of Conferences, 2020
This study analyses the performance of heat transfer process which occurs in the convective boiling of Hydro fluoro Olefin (HFO) refrigerant, R1234yf, in horizontal tube.
Phan Thanh Nhan   +3 more
doaj   +1 more source

Numerical Simulation on flow characteristics of the supercritical fluid in Micro-Fin Tube [PDF]

open access: yesE3S Web of Conferences, 2021
The flow characteristics of the supercritical fluid in the micro-fin tube is the theoretical basis for the development of heat transfer enhancement and flow resistance reduction in the micro-fin tube.
Chen Peng-Fei   +4 more
doaj   +1 more source

Numerical Simulation Based on Heat Transfer Enhancement of Supercritical Fluid in Micro-Fin Tube [PDF]

open access: yesE3S Web of Conferences, 2021
With the application of supercritical fluid heat transfer equipment in industrial fields such as solar thermal power generation, chemical industry, aerospace, etc., studying the heat transfer characteristics of supercritical fluid in micro-fin tubes has ...
Chen Peng-Fei   +3 more
doaj   +1 more source

Condensation of an Azeotropic Mixture inside 2.5 mm ID Minitubes

open access: yesFluids, 2020
The ongoing miniaturization of air conditioning and refrigeration systems, in order to limit, as much as possible, the refrigerant charge, calls for smaller and smaller heat exchangers.
Andrea Diani, Luisa Rossetto
doaj   +1 more source

R1234ze(E) Flow Boiling inside a 2.5 mm ID Smooth Tube and Comparison against an Equivalent Microfin Tube

open access: yesApplied Sciences, 2021
The air conditioning and refrigeration industry is now dealing with an imminent substitution of widely implemented refrigerants having a non-negligible global warming impact.
Andrea Diani, Luisa Rossetto
doaj   +1 more source

Prediction of Friction Factor and Heat Transfer Coefficient for Single-Phase Forced Convection Inside Microfin Tubes

open access: yesEnergies, 2023
Microfin tubes are widely used to enhance heat transfer in heat exchangers in order to reduce volumes, costs and refrigerant charge. Much experimental work has been published for the flow of liquids, while some experimental work is available for the flow
Luisa Rossetto, Andrea Diani
doaj   +1 more source

Comparison between R134a and R1234ze(E) during Flow Boiling in Microfin Tubes

open access: yesFluids, 2021
Environmental concerns are forcing the replacement of commonly used refrigerants, and finding new fluids is a top priority. Soon the R134a will be banned, and the hydro-fluoro-olefin (HFO) R1234ze(E) has been indicated as an alternative due to its ...
Andrea Lucchini   +4 more
doaj   +1 more source

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

open access: yes, 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   +54 more
core   +2 more sources

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