Results 51 to 60 of about 2,572 (229)

Thermal Stability Analysis and Novel Cooling Technology Field Tests for Permafrost Railway Subgrades

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Global warming has intensified the climatic warming and moistening trend on the Qinghai–Tibet Plateau, threatening the thermal stability of railway subgrades in the plateau permafrost regions. However, previous studies have lacked systematic analyses that comprehensively consider the climate along the railway, permafrost conditions, and subgrade ...
Xiaohe Liu, Jianyong Han
wiley   +1 more source

Optimization of Low Wattage Thermosyphon by Taguchi Method and Numerical Simulation

open access: yes, 2016
This study used numerical simulation and Taguchi method to analyze the influence of different factors, including vacuum degree, fill ratio and aspect ratio and inclined angle, on the heat transfer characteristics of low-watt thermosyphon in natural ...
Che-yin Lee **1, Hsin-heng Huang 2, Shih-ming Lee 2 and Kwan Ouyang
core   +1 more source

Critical heat flux density in diphasic thermosyphons

open access: yesMATEC Web of Conferences, 2017
The paper presents an analysis of known dependencies for determining the critical heat flux density in diphasic thermosyphons. The critical heat flux density for the created experimental model of thermosyphon were calculated on the basis of the ...
Ponomarev Konstantin O.   +2 more
doaj   +1 more source

Effect of Thermosyphon cross section shape on the Heat Transfer Characteristics

open access: yesTikrit Journal of Engineering Sciences, 2013
Thermosyphon is considered a heat transfer device in which its operating principle depends on the evaporation and condensation of a working fluid which use the gravity forces to ensure the fluid circulation.
Raqeeb H. Rejab
doaj   +1 more source

A two-phase closed thermosyphon [PDF]

open access: yesInternational Journal of Heat and Mass Transfer, 1972
Abstract An experimental study on the heat transfer performance of a two-phase closed thermosyphon together with a simple theoretical analysis for its maximum heat transfer capacity has been made. Water and Freon-11 were used as the working fluids. Out of many possible controlling variables, the effects of (a) the amount of working fluid in the tube,
Y Lee, U Mital
openaire   +1 more source

Reliability Evaluation and Thermal‐Performance Based Review of Isolated Multiport Converters for EV Application

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
The upswing in electric vehicle (EV) demand has underscored the necessity for readily available charging infrastructure, further catalyzing the need for efficient power control mechanisms. Consequently, there is a persistent demand for reliable, compact, efficient, and lightweight power converters to support this infrastructure.
Zarren Firdous   +5 more
wiley   +1 more source

Exploring Solar Thermal Collector Technologies: Efficiency, Performance, and Advanced Concentration Strategies

open access: yesEnergy Science &Engineering, Volume 13, Issue 12, Page 6527-6571, December 2025.
ABSTRACT Solar thermal collector technology is crucial for capturing renewable energy to support sustainable thermal uses. Nonetheless, traditional designs frequently experience optical losses, ineffective thermal storage and variable performance under different levels of sunlight.
R. Iyankumar   +7 more
wiley   +1 more source

Performance Analysis on Integrated System of Mechanical Refrigeration and Thermosyphon

open access: yesZhileng xuebao, 2015
Cutting down the energy consumption of air conditioners in data centers is an urgent need for realizing emission control targets. Thermosyphon (heat pipe) free cooling is one of the effective methods.
Zhang Hainan   +2 more
doaj  

Analysis of Influence of Heat Transfer Conditions on the Upper Cover to Heat Transfer in Thermosyphon

open access: yesMATEC Web of Conferences, 2016
Numerical analysis of thermal conditions of a two-phase closed thermosyphon using the software package ANSYS FLUENT has been carried out. Temperature distributions at various heat transfer conditions on upper cover and different heat flow on bottom cover
Krasnoshlykov Alexander
doaj   +1 more source

Heat Transfer Characteristics of Novel Resin Impregnated Paper Converter Transformer Valve‐Side Bushing With Two‐Phase Closed Thermosyphon

open access: yesHigh Voltage, Volume 10, Issue 5, Page 1221-1234, October 2025.
ABSTRACT Resin impregnated paper (RIP) converter transformer valve‐side bushings are the key equipment in converter stations. Local overheating of the RIP core not only reduces the transmission efficiency but also causes insulation failure of converter transformers.
Qingyu Wang   +5 more
wiley   +1 more source

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