Results 1 to 10 of about 6,370 (51)

Parametric analysis of chiller plant energy consumption in a tropical climate

open access: yesInternational Journal of Air-Conditioning and Refrigeration, 2023
The approach that could reduce the energy consumption of water-cooled chillers in office buildings was investigated through experimental and simulation methods.
Esther Benedicta Kyere   +2 more
doaj   +1 more source

Inverted fins for cooling of a non-uniformly heated domain [PDF]

open access: yesJournal of Thermal Engineering, 2015
This paper shows that the peak temperature of a nonuniformly heated region can be decreased by embedding highconductivity tree-shaped inserts which is in contact with a heat sink from its stem. The volume fraction of the high-conductivity material is
Erdal Çetkin
doaj  

Hydrogen, helium and thermo-acoustic refrigerators

open access: yesInternational Journal of Air-Conditioning and Refrigeration, 2023
In this work the design and analysis of 1 kW thermo-acoustic refrigerators with hydrogen and helium for the temperature difference of 38 K is discussed. Helium is the best for thermoacoustic refrigerators compared to the other competent gases.
B. G. Prashantha   +3 more
doaj   +1 more source

Numerical and thermal analysis of a caloric refrigeration device operating near room temperature

open access: yesInternational Journal of Air-Conditioning and Refrigeration, 2023
The application of external stimuli such as the magnetic and electric field in magnetocaloric and electrocaloric materials, and stress and pressure in elastocaloric and barocaloric materials give rise to a new generation of a refrigeration technology ...
Brahim Kehileche   +3 more
doaj   +1 more source

Numerical analysis on heat transfer enhancement of Al2O3 and CuO-water nanofluids in annular curved tubes

open access: yesInternational Journal of Air-Conditioning and Refrigeration
The present investigation presents numerically the thermo-hydraulic performance of annular curved tubes in the turbulent flow region. The three-dimensional (3D) computational fluid dynamic (CFD) model was developed by using a commercial ANSYS 14.5 ...
Mahmoud Abdelmagied
doaj   +1 more source

Intelligent optimal control of endoreversible single-effect HVAC-AR system using machine learning

open access: yesInternational Journal of Air-Conditioning and Refrigeration
Optimal control of Heating, Ventilation, and Air Conditioning Absorption Refrigeration (HVAC-AR) systems based on Finite-Time Thermodynamics (FTT) represents a major challenge in modern engineering application.
A. F. I. Mamadou   +4 more
doaj   +1 more source

Advancements in thermoacoustic technology: a comprehensive review and analysis of recent research

open access: yesInternational Journal of Air-Conditioning and Refrigeration
Thermoacoustic technology attracts significant attention from researchers due to its high reliability, environmentally friendly operation, and less maintenance.
Mahesh Krishna Gaikwad   +6 more
doaj   +1 more source

Energy analysis of the integration of HRV and direct evaporative cooling for energy efficiency in buildings: a case study in Iraq

open access: yesInternational Journal of Air-Conditioning and Refrigeration, 2023
Responding to climate change and adapting to global warming requires creative solutions. In Iraq, the most reliable and popular tool to have buildings cooled is airconditioning units (AC).
Husham Al-Naseri   +2 more
doaj   +1 more source

Heat transfer characteristics of a heat-recovery boiler built based on a modular mini boiler

open access: yesInternational Journal of Air-Conditioning and Refrigeration
The objective of this study is to design a heat-recovery boiler for a 1 MW-class gas engine-based cogeneration system intended to recover heat from engine exhaust gas. To accommodate high-pressure applications, a water tube-type boiler is selected.
Joon Ahn
doaj   +1 more source

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