Results 41 to 50 of about 49,078 (117)

Energy-efficient refrigeration cycle strategies for capacity improvement and humidity control in VRF systems

open access: yesInternational Journal of Air-Conditioning and Refrigeration
The growing demand for energy-efficient and environmentally sustainable HVAC solutions in residential buildings has driven the adoption of Variable Refrigerant Flow (VRF) systems.
Atul M. Elgandelwar
doaj   +1 more source

Internal flow path improvement for pressure loss reduction in heat recovery ventilation system using CFD

open access: yesInternational Journal of Air-Conditioning and Refrigeration
Energy-recovery ventilators (ERV) exhaust polluted indoor air while supplying outdoor fresh air and recovering energy via heat and mass exchange. Their adoption is rapidly increasing because they simultaneously improve indoor air quality and reduce ...
Jung Han Lee, Young Il Kim
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

Verlustliste Nr. 498. (Nr. 498. /1916)

open access: yes, 1916
VERLUSTLISTE NR. 498. Verlustliste (-) Verlustliste Nr. 498. (Nr. 498. /1916) ([1]) Belehrung. (2) Offiziere. (3) A, B, C, D, E, F, G, H, J, K, L, M, N, P (3) R (3) S, T, U, V ...

core  

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

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

CEG 498-01: Design Experience

open access: yes, 2005
CEG 498 (Design Experience) is a summative computer engineering design project course that builds upon previous engineering, science, mathematics and communications course work.
Gallagher, John C.
core   +2 more sources

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

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