Results 261 to 270 of about 2,277 (295)
Some of the next articles are maybe not open access.
Performance of two mixed refrigerant processes providing refrigeration at 70 K
Cryogenics, 2016Abstract Mixed refrigerant process refrigerators are ideal for use in superconducting transformers, fault current limiters, etc. placed in a liquid nitrogen bath. Traditional mixed refrigerant processes used above 70 K cannot be used in these applications. The performance of two mixed refrigerant processes suitable for the above applications has been
Vineed Narayanan, G Venkatarathnam
exaly +2 more sources
Novel dual-mixed refrigerant precooling process for high capacity hydrogen liquefaction plants with superior performance [PDF]
Journal of Energy Storage, 2023 Liquid hydrogen is a superior alternative for the current energy storage methods and energy carriers as it has higher energy density and cleanliness. However, hydrogen liquefaction is an energy-intensive process.
Ahmad K Sleiti, Wahib A Al-Ammari
exaly +2 more sources
Evaluation of a Two-stage Mixed Refrigerant Cascade for HTS Cooling Below 60 K
Physics Procedia, 2015 A mixed refrigerant cascade presents a potential solution for cooling of high-temperature superconductors between 55 K and 70 K. The envisioned process consists of a pre-cooling and a low-temperature stage, where pre-cooling to 120 K is achieved by a ...
S Grohmann
exaly +2 more sources
Testing of the mixing refrigerants HFC152a/HFC125 in domestic refrigerator
Applied Thermal Engineering, 2005Abstract The performances of a refrigeration cycle of a 1,1-difluoroethane/pentafluoroethane (HFC152a/HFC125) mixture used as a refrigerant for domestic refrigerators were calculated and analyzed in detail. The results of the theoretical analysis indicate that the HFC152a/HFC125 mixture in the composition of 0.85 mass fraction of HFC152a has a ...
Mao-Gang He +3 more
openaire +1 more source
Journal of Natural Gas Science and Engineering, 2016 The optimization of a mixed refrigerant liquefaction process is a challenge because of its non-linear characteristics with stringent multiple process constraints.
Tram Ngoc Pham +2 more
exaly +2 more sources
Experimental Study on Throttling Refrigeration System Using Mixed Refrigerants
Applied Mechanics and Materials, 2014This experiment applied to the Linder refrigeration with subcooler and used the new pentabasic refrigerants (N2/CH4/C2H4/C3H8/iC4H10).It can basically achieve the cryogenic temperature of 170k and has the advantages of simple structure and low manufacturing cost.
Zhao Feng Meng +4 more
openaire +1 more source
Synthesis of Mixed Refrigerant Cascade Cycles
Chemical Engineering Communications, 2002This paper considers the synthesis of refrigeration systems with refrigerant mixtures as working fluids. The employed refrigeration topology encompasses features from industrial liquefaction of natural gas (LNG) systems. This configuration consists of a combination of horizontal and vertical cascades generalizing the vertical cascade of pure ...
Shankar Vaidyaraman, Costas D. Maranas
openaire +1 more source
Heat Transfer Engineering, 2020
As the use of semiconductors in industrial site increases, research on ultra-low refrigerators is required to increase the life and quality of the semiconductors.
Kwang-Seok Lee +6 more
openaire +1 more source
As the use of semiconductors in industrial site increases, research on ultra-low refrigerators is required to increase the life and quality of the semiconductors.
Kwang-Seok Lee +6 more
openaire +1 more source
Environmental Science and Pollution Research, 2022
This paper presents the environment-friendly mixture compositions of hydrocarbons (HC)- and hydrofluorocarbon (HFC)-based ternary mixtures that can be better alternatives for R134a in domestic refrigeration units. Combustible refrigerant HCs (R290, R600, R600a) and HFCs (R152a and R161) are used along with the dilutants R13I1, R245fa, R134a, R227ea ...
Nagarjuna, Kumma +1 more
openaire +2 more sources
This paper presents the environment-friendly mixture compositions of hydrocarbons (HC)- and hydrofluorocarbon (HFC)-based ternary mixtures that can be better alternatives for R134a in domestic refrigeration units. Combustible refrigerant HCs (R290, R600, R600a) and HFCs (R152a and R161) are used along with the dilutants R13I1, R245fa, R134a, R227ea ...
Nagarjuna, Kumma +1 more
openaire +2 more sources