Results 41 to 50 of about 572,948 (211)

Thermal and Eco‐Economic Performance Enhancement of Evacuated Tube Solar Collectors Using EG‐Modified TBAB Phase Change Materials

open access: yesEngineering Reports, Volume 8, Issue 6, June 2026.
Extended graphite–enhanced TBAB PCM integrated with an evacuated tube solar collector improves thermal conductivity, heat storage, and efficiency, achieving higher operating temperatures, rapid heat absorption, reduced CO2 emissions, significant energy savings, and short payback for sustainable low‐temperature solar heating.
T. Sathish, A. Johnson Santhosh
wiley   +1 more source

Analytical description of chaotic oscillations in a toroidal thermosyphon [PDF]

open access: yes, 1995
Multiple time scales and singular perturbation techniques are used to describe the ordinary and the chaotic oscillations due to natural convection in a fluid loop subject to a known external heat flux. The turbulent flow in the loop is modelled using the
Liñán Martínez, Amable
core  

Numerical Analysis of General Trends in Single-Phase Natural Circulation in a 2D-Annular Loop

open access: yesScience and Technology of Nuclear Installations, 2008
The aim of this paper is to address fluid flow behavior of natural circulation in a 2D-annular loop filled with water. A two-dimensional, numerical analysis of natural convection in a 2D-annular closed-loop thermosyphon has been performed for various ...
Gilles Desrayaud, Alberto Fichera
doaj   +1 more source

Comparative Experimental Efficiency of Solar Water Heating Systems With Enhanced Thermal Performance: A Review

open access: yesEnergy Science &Engineering, Volume 14, Issue 6, Page 3056-3072, June 2026.
This review presents a comparative analysis of experimental studies aimed at improving the thermal efficiency of solar water heating (SWH) systems. Various enhancement techniques, including nanofluids, phase change materials, optimized collector designs, and hybrid photovoltaic–thermal systems, are evaluated based on their impact on system performance ...
Oluwaseyi O. Alabi   +2 more
wiley   +1 more source

Análise de circuito de termossifão bifásico aplicado à parte fria de sistemas stirling de refrigeração: [dissertação] [PDF]

open access: yes, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnologico. Programa de Pós-graduação em Engenharia MecânicaNeste trabalho investigou-se o desempenho de um circuito de termossifão bifásico (CTB), utilizando dióxido de carbono ...
Zimmermann, Augusto José Pereira
core  

Experimental Observation of Natural Convection Heat Transfer Performance of a Rectangular Thermosyphon

open access: yesEnergies, 2019
This study experimentally investigates the natural convection heat transfer performance of a rectangular thermosyphon with an aspect ratio of 3.5. The experimental model is divided into a loop body, a heating section, a cooling section, and two adiabatic
C. S. Huang   +4 more
doaj   +1 more source

Proof of the Concept of Detailed Dynamic Thermal-Hydraulic Network Model of Liquid Immersed Power Transformers

open access: yesEnergies, 2023
The paper presents a physics-based method to calculate in real time the distribution of temperature in the active part of liquid immersed power transformers (LIPT) in a transient thermal processes during grid operation.
Marko Novkovic   +3 more
doaj   +1 more source

HYDRODYNAMICS OF TWO-PHASE LOOP THERMOSYPHON

open access: yesFrontiers in Heat Pipes, 2010
Two-phase loop thermosyphons are important devices for large heat transport to a longer distance. The hydrodynamics of such device is closely related with the evaporator and condenser details. The evaporator is modeled by an integral balance of bubble flow, considering the relative velocity difference between the vapor and liquid.
openaire   +2 more sources

Heat Transfer Performance of Biphilic Surfaces With Diatomite‐Based Composite Coatings in a Closed Thermosyphon System

open access: yesHeat Transfer, Volume 55, Issue 3, Page 1608-1638, May 2026.
ABSTRACT This study investigates the thermal performance of innovative biphilic boiling surfaces designed for CPU cooling applications using a two‐phase closed thermosyphon (TPCT) system. The surfaces were fabricated by applying composite coatings—comprising epoxy resin and diatomite particles functionalized with APTES and PFOTS silanes— onto Al1050 ...
José Pereira   +3 more
wiley   +1 more source

The Effect of Convection on the Thermal Power Change of Loop Thermosyphon [PDF]

open access: yesMATEC Web of Conferences, 2020
Creating thermal well-being and comfort for humans is now very natural and necessary. From the point of view of ensuring optimal operating conditions for electronic and electrical equipment, it is very important to provide a cooling system.
Polačiková Mária   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy