Results 1 to 10 of about 402,826 (270)
Development of Performance Analysis Program and the Study of Substitution Refrigerant R1234yf for Vehicle Refrigerant Compressor [PDF]
Korean Journal of Air-Conditioning and Refrigeration Engineering, 2011 ABSTRACT:The compressor’s efficiency affects on the fuel consumption of the vehicle because the compressors for car air-conditioning system are operated by engine-driven. Especially, the refrigerant is being changed recently from R134a to substitution refrigerant to protect environment pollution that people concerned about. However, that leads to lower
Tae-Jin Lee +3 more
exaly +2 more sources
Analysis and improvement of the efficiency of NH3-NaSCN single effect absorption cooling system [PDF]
Heliyon, 2022 This work aims at reinforcing simultaneously the coefficient of performance (COP) and the exergetic coefficient of performance (ECOP), in order to improve the operation of an absorption chiller to be used in tropical areas.
Gilbert Roméo Hubert Ngock +3 more
doaj +2 more sources
International Journal of Thermofluids, 2023 In this work, the refrigerant R1233zd(E) (A1 ASHRAE safety code) is investigated for the possible substitution of refrigerant R161 (A2 ASHRAE safety code) in a cascade refrigeration system. The high-temperature circuit refrigerant R1233zd(E) is evaluated
Vivek K. Patel +4 more
doaj +1 more source
Al-Qadisiyah Journal for Engineering Sciences, 2023 This research aims to find ways to use different mixtures instead of R134a refrigerants that are more efficient and better for the environment. The Kyoto Protocol states that hydrofluorocarbon refrigerants must be replaced due to their high Global Warming Potential values, contributing to environmental damage.
Mohammed Mohammed, Maathe Theeb
openaire +1 more source
Theoretical analysis of a Low GWP Refrigerants as a Drop in substitute of R134a in a Domestic Refrigerator [PDF]
Iranian Journal of Energy and Environment, 2018 Now a days Fridges and Air-conditioners are mostly used in domestic environment. The CFCs have been almost ruled out since 1995 due to their huge impact on the ozone layer, due to the above problem HFC refrigerants are introduced but these are having a high GWP value, which causes environmental pollution.
M. Shaik Sk, K. Srinivas
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Environmental Technology & Innovation, 2021 Abstract On account of negative impacts of halogen-laden refrigerants in the biosphere through stratospheric ozone layer depletion and global warming, substitution to these obnoxious compounds by introducing environmentally benign working media and allied alternative refrigeration system has been a matter of global concern.
Zunipa Roy +2 more
openaire +1 more source
AIP Advances, 2022 Substitution effects of V, Ti and C in AlFe2−xVxB2 (x ≤ 0.15), AlFe2−yTiyB2 (y ≤ 0.15) and AlFe2B2−zCz (z ≤ 0.2) alloys have been investigated. The main phase of these alloys is crystallized in the orthorhombic Cmmm-type structure. The Curie temperature (
Shiqi Wang +3 more
doaj +1 more source
Energies, 2023 Refrigerant substitution is an urgent need in the context of reducing carbon emissions and slowing global warming. CO2 is now being proposed as a promising solution based on its excellent properties and system performance, especially in low-temperature ...
Hongzeng Ji +5 more
doaj +1 more source
Materials Compatibility and Lubricants Research on CFC-refrigerant substitutes [PDF]
, 1992 The materials Compatibility and Lubricants Research (MCLR) program supports critical research to accelerate the introduction of CFC-refrigerant substitutes. The MCLR program addresses refrigerant and lubricant properties and materials compatibility.
Hourahan, Glenn C., Szymurski, Steven R.
openaire +4 more sources
MATEC Web of Conferences, 2017 Global warming is the result of the use of Chloro Fluoro Carbon (CFC) and Hydro Flouro Carbon (HFC) refrigerants. CFC and HFC refrigerants are not environmentally friendly in air conditioning systems.
Suparmin Prayudi +2 more
doaj +1 more source