Results 61 to 70 of about 4,411,432 (181)
Case Studies in Thermal EngineeringEnergy efficiency and environmental sustainability are critical in the transformation of modern air conditioning systems, especially in light of global climate goals and the phasing out of high-GWP refrigerants.
Mohammed Sadhikh +5 more
doaj +1 more source
Effect of Liquid Reynolds Number on Pressure Drop of Evaporative R-290 in 500µm Circular Tube
International Journal of Technology, 2017 Due to certain advantages, natural refrigerants have recently become more popular. Environmental issues motivate this study, focused on the characteristics of propane (R-290) as a replacement for conventional refrigerants.
Sentot Novianto +4 more
doaj +1 more source
EnergiesThis study presents a comprehensive three-dimensional Computational Fluid Dynamics (CFD) analysis of the pre-cooling process of a Type B LNG tank using various refrigerants, including liquid nitrogen (LN), nitrogen gas (NG), liquefied natural gas (LNG ...
Qiang Sun +6 more
doaj +1 more source
Investigation Of Low GWP Refrigerant Interaction With Various Lubricant Candidates [PDF]
, 2012 Refrigerants used in various air conditioning and refrigeration industries are going through changes today and continued changes into the near future. These changes are being driven by environmental and energy efficiency regulations and could result in ...
Beattie, Roger J., Karnaz, Joseph A.
core +1 more source
Geometric parameter optimization of ejector-expansion refrigeration cycle with natural refrigerants
International Journal of Energy Research, 2009 Thermodynamic analyses and comparison of ammonia-, propane- and isobutane-based vapour compression refrigeration cycles are presented in this article using constant area mixing ejector as an expansion device. Optimization of ejector geometric parameter based on the maximum cooling COP and performance improvement for different operating conditions is ...
openaire +1 more source
Hittite Journal of Science and Engineering, 2023 Cascade refrigeration systems are preferred in applications where low temperature cooling is required, such as in some special industrial and laboratory applications. Since, in these systems, the energy consumed by the compressors is less and the compressor outlet temperature is lower.
openaire +3 more sources
Memòria resum d’actuacions Parc Natural dels Ports 2021 [PDF]
, 2022 Gestió efectuada durant el 2021 al Parc Natural dels Ports, destacar les accions estratègiques i les fites més rellevants en cada un dels àmbits i línies de treball.[es] Gestión efectuada durante el 2021 en el Parque Natural de Els Ports, destaca las ...
Parc Natural dels Ports
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Research Progress on Alternative Refrigerants and Their Development Trend
Zhileng xuebao, 2011 The new agreement about “accelerate the phase-out of production and consumption of hydro-chlorofluorocarbons (HCFCs)” on the 19th meeting of the Parties to the Montreal Protocol put much more pressure on Chinese refrigeration industry.
Li Liansheng
doaj
Technical and Environmental Evaluation of CO2-based Booster Refrigeration Systems
Revista UIS IngenieríasThe present study deals with the performance evaluation of four CO2 booster refrigeration system configurations: a conventional, a parallel compressor, an ejector-based, and an NH3/CO2 cascade configuration, under the ambient conditions of the city of ...
Daniel Vergara-Teran +2 more
doaj +1 more source
Low-GWP Refrigerants: The Importance of the Thermophysical Properties for HVAC Design
, 2022 openNovel refrigerants with short atmospheric lifetime are being investigated to replace previous generations of working fluids in refrigeration, air-conditioning, and heat pump systems.
GRESELIN, IVAN
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