Results 41 to 50 of about 2,491 (296)
State of the Art of Research and Applications of Low-carbon Refrigerants
Zhileng xuebao, 2016 Refrigerant is the blood of refrigeration systems. Since the synthetic refrigerants were developed, refrigeration technology has experienced a rapid development.
Chen Guangming, Gao Neng, Piao Chuncheng
doaj
ENERGY PERFORMANCE OF HYDROCARBON REFRIGERANT AS A POSSIBLE ALTERNATIVE REFRIGERANT TO R134A IN DOMESTIC REFRIGERATORS [PDF]
Journal of Al-Azhar University Engineering Sector, 2019 The performance of a domestic refrigerator is theoretically assessed in this study. Therefrigerator utilizes R1234yf as an alternative refrigerant for R134a. The performance isevaluated for three condensing temperatures, specifically, 30, 40, and 50°C at differentevaporator temperatures, ranging −30 and 0°C.
Tamer Hassan, N Mahmoud, M El-Morsi
openaire +1 more source
, 2023 Refrigerant is the working medium of refrigeration and air-conditioning systems. Currently, synthetic refrigerants are the dominant refrigerants for cooling, but the emissions from synthetic refrigerants into the atmosphere will destroy the ozone layer ...
Ruonan, Wang, Zhaohui, Zhang
core +1 more source
Advanced Materials, EarlyView.2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil +14 more
wiley +1 more source
EnergiesSlow market development has caused the lack of low-GWP A1 refrigerants for ultra-low temperature (ULT) refrigeration. Consequently, the high-GWP refrigerant R23 (GWP = 14,600) remains widely used within the ULT sector.
Pau Giménez-Prades +3 more
doaj +1 more source
Frontiers in Energy Research, 2023 Introduction: To reduce greenhouse gases, the Kigali Amendment to the Montreal Protocol seeks a phasedown of hydrofluorocarbons. R134a alternatives were analyzed for use in a water-cooled chiller: R450A, R513A, R516A, R1234ze (E), R515A, and R515B ...
Michael O. Akinseloyin +4 more
doaj +1 more source
Advanced Materials, EarlyView.Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley +1 more source
Thermodynamic screening of alternative refrigerants for R290 and R600a
Results in Engineering, 2020 Due to Regulation EU 517/2014 (F-Gas), the use of refrigerants with GWP higher than 150 was limited from 2015 on in small capacity refrigeration systems in Europe.
Daniel Calleja-Anta +5 more
doaj +1 more source
Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx
Advanced Materials, EarlyView.We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno +16 more
wiley +1 more source
Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions
Advanced Materials, EarlyView.ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez +10 more
wiley +1 more source