Results 81 to 90 of about 4,411,432 (181)

Interpretation of the EU PFAS Restriction Proposal and Its Impact on R&AC Industry

Zhileng xuebao
Driven by the compliance of the Kigali Amendment to the Montreal Protocol on substances that deplete the Ozone Layer and the "carbon peak and carbon neutrality" strategy, refrigerant substitution has become one of the most important hot spots in the R&AC(
An Qingsong, Hou Jiaxin, Shi Lin, Dai Xiaoye   +3 more
doaj  

Advancing sustainable air conditioning with CO2 heat pump and earth-air heat exchange integration

Case Studies in Thermal Engineering
The early development of refrigeration technology relied on natural refrigerants such as carbon dioxide (CO2), ammonia, and hydrocarbons. However, technical limitations and safety challenges led to their replacement by synthetic refrigerants.
Fadi Alsouda, Nick S. Bennett, Mohammad S. Islam   +2 more
doaj   +1 more source

Drop-in Testing of Next-Generation R134a Alternates in a Commercial Bottle Cooler/Freezer [PDF]

, 2012
Next-generation refrigerants with lower Global Warming Potentials than traditional HFC’s are being commercially introduced. Drop-in performance tests were conducted in a commercial bottle cooler/freezer.
Shapiro, Doron
core  

Design of a Rectification Plant for the Complex Separation of Propane-Butane Mixtures

Journal of Mechanical Engineering
This paper is devoted to the issues of designing and experimental research of a pilot-industrial rectification plant intended for the complex separation of propane-butane mixtures obtained during the preparation of natural gas and its liquefaction.
Iurii M. Symonenko, Bohdan H. Hrudka, Eduard V. Matvieiev   +2 more
doaj   +1 more source

An Excel Add-In for Refrigerants Properties and its Use for Optimising Multi-Stage Compression Refrigeration Cycles

Spreadsheets in Education, 2019
The paper deals with the development and verification of an educational add-in for Microsoft Excel that determines the thermo-physical properties of various synthetic and natural refrigerants used in vapour-compression refrigeration (VCR) systems.
Mohamed M. El-Awad
doaj  

Flow Boiling Heat Transfer and Pressure Drop of R1234ze(E) and R32 in a Horizontal Micro-Fin Tube [PDF]

, 2012
In the present study, the flow boiling heat transfer of R1234ze(E), R32 and zeotropic mixture R1234ze(E)/R32 (50/50 mass%) in a horizontal micro-fin tube is experimentally investigated to clarify the pressure drop and heat transfer characteristics ...
Koyama, Shigeru, Baba, Daisuke, Nakagawa, Takafumi   +2 more
core  

Memòria del Parc Natural dels Ports 2023 [PDF]

Gestió efectuada durant el 2023 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 2023 en el Parque Natural de Els Ports, destaca las ...
Parc Natural dels Ports
core  

Comprehensive Exergy and Exergoeconomic Analyses and Optimization of a Three-Stage Cascade Refrigeration System Using Environmentally Friendly Refrigerants. [PDF]

Entropy (Basel)
Aktemur C, Gurgenc E.
europepmc   +1 more source

Exergy and DFT-Based Thermodynamic Analysis of a Rankine-VCR Marine Waste Heat Recovery System. [PDF]

Molecules
Keven A, Akçay E, Gümüş H.
europepmc   +1 more source

Memòria del Parc Natural dels Ports 2024 [PDF]

Gestió efectuada durant el 2024 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 2024 en el Parque Natural de Els Ports, destaca las ...
Parc Natural dels Ports
core