Results 11 to 20 of about 14,074 (238)

Sustainable design of hydrocarbon refrigerants applied to the hermetic compressor [PDF]

open access: yes
International environmental concern led to the control and phase out of traditional chlorofluorocarbon refrigerants (CFCs) under the terms of the Montreal protocol. CFCs used in domestic applications were initially replaced with hydrofluorocarbons (HFCs)
Garland, Nigel P.
core   +10 more sources

Determination of a Suitable Retrofit of R-134A Using Refrigerant Blends of R290 and R600 Aided by an Optimization Technique [PDF]

open access: yesЖурнал інженерних наук, 2022
The effect of the hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) refrigerants on the environment through the attack of its halogen contents-chlorine and fluorine, on the ozone layer and the toxic nature of such refrigerants, has paid the ...
Anaemeje J. C.   +3 more
doaj   +1 more source

Selection of the working body of the organіc Rankin cycle and the study of its features

open access: yesШәкәрім университетінің хабаршысы: Техника ғылымдар, 2023
The article considered the application of the organic Rankine cycle, in particular attention was paid to the correct choice of the working fluid in installations that implement such a cycle.The choice of a working medium for solving generalized tasks is ...
Zh. Bakyt, Sh. Issagaliyeva, A. Kassymov
doaj   +1 more source

European experience application in replacing hydrofluorocarbons in air conditioning units in domestic railway transport

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2021
Adoption by Russia of the Kigali Amendment to the Montreal Protocol on substances that deplete the ozone layer posed a very difficult task for consumers of artificial cold, including rail transport, to find an acceptable alternative to the R134a freon ...
I. M. Mazurin, S. N. Naumenko
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

Towards a Miniaturized Photoacoustic Detector for the Infrared Spectroscopic Analysis of SO2F2 and Refrigerants

open access: yesSensors, 2022
Sulfuryl fluoride (SO2F2) is a toxic and potent greenhouse gas that is currently widely used as a fumigant insecticide in houses, food, and shipping containers.
Hassan Yassine   +4 more
doaj   +1 more source

THERMODYNAMIC ANALYSIS OF RECUPERATIVE AND REHEAT BASED ON ORGANIC RANKINE CYCLE FOR HIGH-TEMPERATURE WASTE HEAT RECOVERY

open access: yesRekayasa Mesin, 2023
Heat recovery from available waste heat is an essential method in renewable energy processes due to the ability to generate electricity by using Organic Rankine Cycles (ORC). The process model is developed with the Cycle Tempo software.
Fara Nabilah Sakina   +3 more
doaj   +1 more source

Assessing Energy Performance and Environmental Impact of Low GWP Vapor Compression Chilled Water Systems

open access: yesEnergies, 2023
The global concern regarding the environmental repercussions of refrigerants has escalated due to their adverse effects. These substances deplete the ozone layer and intensify the greenhouse effect. International agreements such as the Montreal and Kyoto
Rami Mansouri   +2 more
doaj   +1 more source

Low temperature vacuum sublimation refrigerators on carbon dioxide as working fluid [PDF]

open access: yesMATEC Web of Conferences, 2020
The paper presents the results of theoretical and experimental analysis of a vacuum-freeze-drying refrigeration machine based on carbon dioxide.
Porutchikov Artem Frolovich   +1 more
doaj   +1 more source

Experimental Study of Explosion Limits of Refrigerants and Lubricants’ Mixture [PDF]

open access: yes, 2012
The explosion limits of refrigerants and lubricants’ mixture were studied. The refrigerants like R161, R1234yf and R152a are combustible. Lubricants, to a certain extent, are combustion-supporting.
Chen, Guangming, Chen, Q, Shi, Y.Q
core   +1 more source

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