Results 1 to 10 of about 14,638 (306)

Two-stage cascade configurations based on ejectors for ultra-low temperature refrigeration with natural refrigerants [PDF]

open access: yesInternational Journal of Thermofluids, 2023
Research in ultra-low temperature refrigeration applications has intensified in recent years after the appearance of vaccines in response to the COVID-19 pandemic.
Cosmin-Mihai Udroiu   +4 more
doaj   +2 more sources

Dynamic omniphobic surfaces enable the stable dropwise condensation of completely wetting refrigerants [PDF]

open access: yesNature Communications
Condensation is a vital process integral to numerous industrial applications. Enhancing condensation efficiency through dropwise condensation on hydrophobic surfaces is well-documented.
Kazi Fazle Rabbi   +4 more
doaj   +2 more sources

Comparison of Performance Parameters of Four Types of Refrigerants [PDF]

open access: yesMATEC Web of Conferences, 2022
The use of refrigerants requires to meet ecology and legislation requirements. The aim of the legislation is also to reduce the global warming potential (GWP).
Čaja Alexander   +3 more
doaj   +1 more source

Thermodynamic Properties of Monatomic, Diatomic, and Polyatomic Gaseous Natural Refrigerants: A Molecular Dynamics Simulation [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2021
Owing to their lower adverse environmental impacts, natural refrigerants have recently attracted a huge deal of attention. In this regard, the present study is aimed to evaluate the thermodynamic properties of different gaseous natural refrigerants at ...
Ali Rajabpour, Milad Abbasi
doaj   +1 more source

The prospect of using ozone-safe refrigerants with low global warming potential in scroll compressors. Research and practice of using R744 and R290. Part 2 [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022
Scroll compressors currently operate successfully on various natural refrigerants, among which the most popular are propane R290 and carbon dioxide R744. This is due to the performance characteristics of the refrigerants studied in the previous article.
V. A. Pronin   +3 more
doaj   +1 more source

Measures to expand the application range of ammonia refrigerant [PDF]

open access: yesE3S Web of Conferences, 2023
To cope with the climate issue, China has clearly stated the goal of carbon peaking and carbon neutrality. Most of the refrigerants currently used are HCFCs and HFCs refrigerants.
Shen Xueming   +3 more
doaj   +1 more source

Propane (HC – 290) as an Alternative Refrigerant in the Food Transport Refrigeration Sector in Southern Africa – a Review

open access: yesAutomotive Experiences, 2022
Most of the food transport trucks in Sothern Africa are equipped with refrigeration and air conditioning systems filled with fluorocarbon refrigerants such as R404A to facilitate the heat transfer process.
Thomas Kivevele
doaj   +1 more source

The prospect of using ozone-safe refrigerants with low global warming potential in scroll compressors. Part 1 [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
The Montreal Protocol and the Kigali Amendment have determined the need and deadlines of the replacement of hydro fluorinated refrigerants.
V. A. Pronin   +3 more
doaj   +1 more source

Vapor Compression Cycle: A State-of-the-Art Review on Cycle Improvements, Water and Other Natural Refrigerants

open access: yesClean Technologies, 2023
Air conditioning and refrigeration have become necessary in modern life, accounting for more than 7.8% of greenhouse gases (GHG) emitted globally. Reducing the environmental impact of these systems is crucial for meeting the global GHG emission targets ...
Fadi Alsouda   +4 more
doaj   +1 more source

Resurrection of carbon dioxide as refrigerant in solar thermal absorption cooling systems

open access: yesHeliyon, 2023
The existing air conditioning and cold storage systems use conventional compressor based systems, compelling more electricity and greenhouse gasses (GHG) emissions.
Saad Dilshad   +2 more
doaj   +1 more source

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