Results 21 to 30 of about 1,963,831 (233)

Numerical investigation of a geothermal thermoelectric generator using gravity heat pipe structure

open access: yesEnergy Reports, 2023
Geothermal energy is a kind of clean energy with a large amount of energy. Some energy problems can be solved by collecting its heat and using thermoelectric generators.
Jin-Liang Zeng   +4 more
doaj   +1 more source

Exergy of heat flows in exchanger consisting f gravity heat pipes [PDF]

open access: yesResearch in Agricultural Engineering, 2005
The paper deals with the analysis of the impact of inlet air temperature on the exergy efficiency and exergy of the losing heat flow and determination of the relation between the exergy and thermal efficiency in an exchanger consisting of gravity heat pipes. The assessment of heat processes quality and transformation of energy in the exchanger are also
D. Adamovský   +3 more
openaire   +2 more sources

Heat Transfer Performance Enhancement of Gravity Heat Pipes by Growing AAO Nanotubes on Inner Wall Surface

open access: yesInventions, 2018
In this paper, the heat transfer performance of gravity heat pipes with anodic aluminum oxide (AAO) wall surface is studied. The main purpose is to study the effects of the length and diameter of AAO nanotubes on the temperature distribution, overall ...
Huei Chu Weng, Meng-Hsueh Yang
doaj   +1 more source

An Improved Model of the Heat Pipe Based on the Network Method Applied on a Heat Pipe Cooled Reactor

open access: yesFrontiers in Energy Research, 2022
As the unique piece of heat transport equipment in a heat pipe cooled reactor, an accurate simulation of the heat pipe is helpful for understanding the real behavior of the reactor core and the reactor system.
Yuchuan Guo   +4 more
doaj   +1 more source

Design of an experimental device for preheating combustion air [PDF]

open access: yesMATEC Web of Conferences, 2021
The principle of the proposed device is to use part of the waste heat, which otherwise leaves through the chimney unused into the air, to preheat the combustion air.
Martvoňová Lucia   +3 more
doaj   +1 more source

Heat losses in internal combustion engines [PDF]

open access: yes, 1989
Bibliography: leaves 119-121.This thesis deals with the effects of cooling and heat losses in internal combustion engines. The object of this work was to examine and research various cooling concepts and methods to reduce heat loss to engine coolant ...
Clarke, Ralph Henry
core   +1 more source

Thermal performance analysis of heat pipe using response surface methdology

open access: yesJournal of Thermal Engineering, 2023
Heat pipes are the specific class of heat exchangers. They are used in thermal management of electronic components. Research community is continuously working to obtain the optimum heat transfer performance. In present work, parametric study of heat pipe
Udayvir SINGH, Naveen Kumar GUPTA
doaj   +1 more source

Two-Phase Flow Visualization and Heat Transfer Characteristics Analysis in Ultra-Long Gravity Heat Pipe

open access: yesEnergies, 2023
The ultra-long gravity heat pipe has a long heat transfer distance and narrow working fluid flow channel within its tube. Due to these unique design features, the vapor–liquid counter-flow and heat transfer characteristics of these heat pipes are more ...
Feng Li   +6 more
doaj   +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.
Watson, S.J., Wong, H., Zhang, J.
core   +1 more source

An experimental investigation to study the performance characteristics of heat pipe using aqueous hy

open access: yesJournal of Thermal Engineering, 2023
The steady-state performance characteristics of a mesh-wick heat pipe were investigated ex- perimentally across a heat load range of 25W-100W incorporating DI water, Al2O3 nanofluids, and Al2O3+GO hybrid nanofluids respectively.
Harshit PANDEY   +2 more
doaj   +1 more source

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