Results 31 to 40 of about 6,420 (72)

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

Energy, exergy, exergoeconomic, and exergoenvironmental analyses and multi-objective optimization of parallel two-stage compression on the domestic refrigerator-freezer

open access: yesInternational Journal of Air-Conditioning and Refrigeration
In this paper, the performance of a parallel two-stage compression (PTC) cycle on the domestic refrigerator-freezer in a laboratory according to the IEC 62552–2015 standard is investigated.
Nader Alihosseini   +2 more
doaj   +1 more source

Development of a regulator for high-pressure hydrogen charging and storage system

open access: yesInternational Journal of Air-Conditioning and Refrigeration
Hydrogen emerges as a promising alternative energy source, particularly in fuel cell applications, necessitating efficient and safe charging and storage systems.
Jong Suk Lee   +7 more
doaj   +1 more source

Application of blade element momentum theory with guaranteed convergence to analyze a straight-blade horizontal axis wind turbine

open access: yesInternational Journal of Air-Conditioning and Refrigeration
Blade element momentum theory continues to be widely used in the wind industry to calculate and analyze wind turbines. This theory has been improved many times to address its inherent weakness of convergence capability.
Dang Huy Le   +2 more
doaj   +1 more source

Performance analysis of a conventional two-stage indirect evaporative cooler

open access: yesInternational Journal of Air-Conditioning and Refrigeration
With the aim of saving a portion of the high-quality energy consumed in mechanical vapor compression systems for air conditioning applications, the present work focuses on utilization of low-quality energy conversion processes due to fluid evaporation ...
Braihan Abdulwadood Salman
doaj   +1 more source

Computational fluid dynamic simulation of packed bed drying process: impact of particle properties, drying conditions, and lateral edge heating modes on drying kinetics

open access: yesInternational Journal of Air-Conditioning and Refrigeration
In this work, a two-dimensional computational fluid dynamic (CFD) model is developed to describe the drying process of a packed bed made of spherical particles.
Thi Thu Hang Tran, Kieu Hiep Le
doaj   +1 more source

Theoretical and experimental study on pumping characteristics of low-GWP refrigerants in solar ejector cooling system

open access: yesInternational Journal of Air-Conditioning and Refrigeration
This study evaluates two low-global warming potential (low-GWP) refrigerants—R1233zd(E) and R1234ze(Z)—for use in solar ejector refrigeration systems. A steady-state thermodynamic model is developed to compare their performance with baseline R134a across
Zhao Cheng-ming   +4 more
doaj   +1 more source

Mitigating indoor overheating caused by commercial refrigerators: an experimental and simulation-based evaluation of a passive heat management dissipation approach

open access: yesInternational Journal of Air-Conditioning and Refrigeration
The increasing demand for space cooling poses a major challenge to energy systems and buildings, both residential and commercial applications. Cost-effective and easily deployable solutions are widely needed to tackle this challenge.
Aaron Gerlinger   +3 more
doaj   +1 more source

Experimental analysis of temperature uniformity in a vertical smart-farm with radiant cooling panels

open access: yesInternational Journal of Air-Conditioning and Refrigeration
The vertical smart-farm, characterized by multi-layer cultivation structures, predominantly employs a convection cooling system to establish crop growth environments.
Hye-Jin Cho, Chang-Ho Jeong
doaj   +1 more source

Experimental investigation to evaluate the impact of dimensional parameters of elliptical configured coil condenser on the performance of a vapour compression refrigeration system

open access: yesInternational Journal of Air-Conditioning and Refrigeration
The focus of this research is to experimentally explore the influence of elliptically configured coil (ECC) condenser dimensional parameters and working conditions on the coefficient of performance (COP) of vapour compression refrigeration systems (VCRS).
Savitha D C   +7 more
doaj   +1 more source

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