Results 261 to 270 of about 14,638 (306)

Study of CHF₃/CH₂F₂ Adsorption Separation in TIFSIX-2-Cu-i. [PDF]

Molecules
Wang S, Zhou L, Qin H, Dong Z, Li H, Liu B, Wang Z, Zhang L, Fu Q, Chen X.   +9 more
europepmc   +1 more source

Modelling of an Integrated Supermarket Refrigeration and Heating System Using Natural Refrigerants

, 1996
Castle, T. P., Green, R. H., Anderson, D.   +2 more
openaire   +1 more source

Natural refrigerants for low temperature power cycles

, 2018
Shahrooz, Mina, Lundqvist, Per, Nekså, Petter   +2 more
openaire   +1 more source

Ejector-Based Air Conditioner Utilizing Natural Refrigerants

, 2010
Butrymowicz, Dariusz, Bergander, Mark J., Smierciew, Kamil, Karwacki, Jaroslaw   +3 more
openaire   +1 more source

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Natural refrigerants for refrigeration and air-conditioning systems

Applied Thermal Engineering, 1997
In the past, several natural working fluids were used in refrigeration and air-conditioning systems. However, the appearance of CFCs caused a drastic reduction in the utilisation of those fluids. Understanding of the environmental damage of CFCs focused attention on alternative refrigerants. From these, the ones that have minimum (or nil) environmental
S. B. Riffat, C. F. Afonso, A. C. Oliveira, D. A. Reay   +3 more
openaire   +4 more sources

Selection of suitable natural refrigerants pairs for cascade refrigeration system

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2013
This study presents thermodynamic analyses and optimization of a two-stage cascade system employing a choice of eight natural refrigerants leading to the most suitable refrigerants pair for wide ranges of operating temperatures; the optimal pair was based on best system performance (cooling coefficient of performance) as well as best volumetric ...
Jahar Sarkar, Souvik Bhattacharyya, Arjun Lal   +2 more
openaire   +3 more sources

Efficiency of Refrigeration Equipment on Natural Refrigerants

Chemical and Petroleum Engineering, 2020
A comparative investigation of losses in refrigeration plants applied in the food industry was carried out using the natural refrigerants CO2 and refrigerant grade propane (R290) at two working temperature levels (evaporation temperature minus 35°С and minus 10°С) using entropic and statistical analysis methods.
V. V. Shishov, M. S. Talyzin
openaire   +1 more source

Natural Refrigerants

Mechanical Engineering, 1998
This article explains that substances such as air, water, ammonia, hydrocarbons, and carbon dioxide may provide solutions to the problem of finding environmentally acceptable refrigerants. The search for new and environmentally benign refrigerants to replace the existing chlorofluorocarbons (CFC) and hydrochlorofluorocarbons (HCFC) has led to the ...
Yunho Hwang, Michael Ohadi, Reinhard Radermacher   +2 more
openaire   +1 more source

Performance Experiment of Natural Refrigerant Cascaded Refrigeration System

Advanced Materials Research, 2011
In this paper, the performances of natural refrigerant R290/CO2 cascaded refrigeration system using R290 as high temperature cycle refrigerant and CO2 as low temperature cycle refrigerant were investigated experimentally. The test results show that both CO2 compressor and R290 compressor start up stably and present good running performance.
Jing Hong Ning, Sheng Chun Liu
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Performance characteristics of natural-refrigerants- based ejector expansion refrigeration cycles

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2009
The thermodynamic analyses and comparison of three natural-refrigerants-based vapour compression refrigeration cycles (ammonia, isobutane, and propane) are presented in this article using a constant pressure mixing ejector as an expansion device. Optimization of the area ratio of the ejector is done based on maximum cooling coefficient of performance (
openaire   +1 more source