Results 21 to 30 of about 3,083 (222)

Performance analysis of absorber tube in parabolic trough solar collector inserted with semi-annular and fin shape metal foam hybrid structure

open access: yesCase Studies in Thermal Engineering, 2021
The objective of present study is to investigate the effect of a novel type of insertion, i.e. semi-annular and fin shape metal foam (SAFM) hybrid structure on thermohydraulic and thermodynamic performance of absorber tube in parabolic trough collector ...
Hao Peng   +3 more
doaj   +1 more source

Modelling and Evaluation of the Thermohydraulic Performance of Finned-Tube Supercritical Carbon Dioxide Gas Coolers

open access: yesEnergies, 2020
This paper investigates the thermohydraulic performance of finned-tube supercritical carbon dioxide (sCO2) gas coolers operating with refrigerant pressures near the critical point.
Lei Chai   +2 more
doaj   +1 more source

Performance Assessment in a Heat Exchanger Tube with Opposite/Parallel Wing Twisted Tapes

open access: yesAdvances in Mechanical Engineering, 2015
The thermohydraulic performance in a tube containing a modified twisted tape with alternate-axes and wing arrangements is reported. This work aims to investigate the effects of wing arrangements (opposite (O) and parallel (P) wings) at different wing ...
S. Eiamsa-ard, M. Pimsarn, C. Thianpong
doaj   +1 more source

Analysis of the thermal improvement of plate fin-tube heat exchanger with straight and curved rectangular winglet vortex generators

open access: yesCase Studies in Thermal Engineering, 2023
A novel combination of curved and straight rectangular winglet vortex generator (RWVG) pairs was arranged in a common-flow-up (CFU) configuration on plate fins for enhancing the comprehensive performance of the fin-tube heat exchanger.
Lumei Zhao   +5 more
doaj   +1 more source

Thermohydraulic performance improvement and entropy generation characteristics of a microchannel heat sink cooled with new hybrid nanofluids containing ternary/binary hybrid nanocomposites

open access: yesEnergy Science & Engineering, 2021
Recently, the combination of hybrid nanofluids with microchannel heat sinks (MCHSs) has led to superior heat removal from high heat flux electronics chips.
M. Mohamed Souby   +2 more
doaj   +1 more source

Heat transfer and pressure drop through mono and hybrid nanofluid‐based photovoltaic‐thermal systems

open access: yesEnergy Science & Engineering, 2022
Using nanofluids in photovoltaic‐thermal systems enhances the overall efficiency; however, increasing the pressure drop and pumping power, because of the higher viscosity of nanofluids, is a challenging factor for the nanofluid‐based systems.
Mohsen Hormozi Moghaddam, Maryam Karami
doaj   +1 more source

Flow characteristics and heat transfer performance in a Y-Fractal mini/microchannel heat sink [PDF]

open access: yes, 2019
This article presents a combined experimental and computational study to investigate the flow and heat transfer in a Y-fractal microchannel. Experimental apparatus was newly built to investigate the effect of three different control factors, i.e., fluid ...
Deng, Zhanfeng   +8 more
core   +2 more sources

Influence of the outlet air temperature on the thermohydraulic behaviour of air coolers [PDF]

open access: yesHemijska Industrija, 2003
The determination of the optimal process conditions for the operation of air coolers demands a detailed analysis of their thermohydraulic behaviour on the one hand, and the estimation of the operating costs, on the other.
Đorđević Emila M.   +4 more
doaj   +1 more source

Optimizing production efficiencies of hot water units using building energy simulations : trade-off between Legionella pneumophila contamination risk and energy efficiency [PDF]

open access: yes, 2019
The energy needed for domestic hot water represents an important share in the total energy use of well-insulated and airtight buildings. One of the main reasons for this high energy demand is that hot water is produced at temperatures above 60°C to ...
De Backer, Lien   +2 more
core   +1 more source

Numerical Comparison of Thermohydraulic Performance and Fluid-Induced Vibrations for STHXs with Segmental, Helical, and Novel Clamping Antivibration Baffles

open access: yesEnergies, 2019
The most extensively used heat exchanger in numerous research fields and industrial processes is the shell and tube heat exchanger. The selection of the baffle plays a vital role to regulate and increase the thermohydraulic performance and also to ...
S.M.A. Naqvi, Qiuwang Wang
doaj   +1 more source

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