Results 11 to 20 of about 2,666,490 (417)

Advanced Heat Exchangers for Waste Heat Recovery Applications

open access: yesChemEngineering, 2023
The incentive for industrial waste heat recovery, which has attracted much research interest in recent years, has been twofold: the obligation to reduce greenhouse gas emissions in line with climate change targets and the need for processes to reduce ...
Hussam Jouhara
doaj   +1 more source

Mathematical model to predict heat transfer in transient condition of helical oscillating heat pipe [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2017
This research aims to study the heat transfer with a numerical model and experimental evaluation of a helical oscillating heat pipe (HOHP). Firstly, we created a numeric model of the HOHP to predict the time required to reach the steady state ...
Narin Siriwan   +3 more
doaj   +1 more source

Enhancement of the Thermal Energy Storage Using Heat-Pipe-Assisted Phase Change Material

open access: yesEnergies, 2021
Usage of phase change materials’ (PCMs) latent heat has been investigated as a promising method for thermal energy storage applications. However, one of the most common disadvantages of using latent heat thermal energy storage (LHTES) is the low thermal ...
H. Behi   +6 more
semanticscholar   +1 more source

Study on influence factors of spontaneous combustion heat transfer of coal pile by heat pipe

open access: yesMeikuang Anquan, 2021
In order to further study the change laws of temperature field in coal pile under different heat source conditions with different liquid filling rates heat pipe, the heat transfer effect of the heat pipe acting on the coal pile was tested by using the ...
QUAN Xin, ZHANG Yaping, NING Ning, WANG Liwei, WANG Jianguo, MA Li
doaj   +1 more source

Nanoparticle Size and Heat Pipe Angle Impact on the Thermal Effectiveness of a Cylindrical Screen Mesh Heat Pipe

open access: yesApplied Mechanics, 2023
This study examines the effects of particle size and heat pipe angle on the thermal effectiveness of a cylindrical screen mesh heat pipe using silver nanoparticles (Ag) as the test substance. The experiment investigates three different particle sizes (30
Prabhu Alphonse   +2 more
doaj   +1 more source

Thermal performance and thermo-economics analysis of evacuated glass tube solar water heater with closed-loop pulsating heat pipe

open access: yesCase Studies in Thermal Engineering, 2022
This research aims to design an optimal closed-loop pulsating heat pipe (CLPHP), which is applied as a heat transfer device to replace the thermosyphon in a commercial evacuated tube solar water heater system (ETSWH).
Methida Siritan   +3 more
doaj  

Interfacial area transport for bubbly-to-slug transition flows in small diameter pipes [PDF]

open access: yesInternational Journal of Heat and Mass Transfer, Volume 172, June 2021, 121095, 2020
This study aims to experimentally investigate the two-group interfacial area transport in small diameter pipes. Experimental data focusing on the bubbly to slug transition regime, namely one-group to two-group transport region, are collected in a 12.7 mm vertical pipe under adiabatic, air-water conditions.
arxiv   +1 more source

Fluid flow and heat transfer in a dual-wet micro heat pipe [PDF]

open access: yes, 2007
Micro heat pipes have been used to cool micro electronic devices, but their heat transfer coefficients are low compared with those of conventional heat pipes. In this work, a dual-wet pipe is proposed as a model to study heat transfer in micro heat pipes.
Carey   +9 more
core   +1 more source

An adjoint optimization approach for the topological design of large-scale district heating networks based on nonlinear models [PDF]

open access: yesApplied Energy, Vol. 280, 116025, 15 December 2020, 2020
This article deals with the problem of finding the best topology, pipe diameter choices, and operation parameters for realistic district heating networks. Present design tools that employ non-linear flow and heat transport models for topological design are limited to small heating networks with up to 20 potential consumers.
arxiv   +1 more source

The utilisation of useful ambient energy in residential dwellings to improve thermal comfort and reduce energy consumption

open access: yesInternational Journal of Thermofluids, 2021
Energy consumption in the housing sector, is significantly high and continues to escalate. Urbanisation due to population growth and migration from rural areas to cities are two main reasons for this rising demand.
Magdi Rashad   +4 more
doaj  

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