Results 71 to 80 of about 2,491 (296)
Comparison of refrigeration cycles with natural refrigerants for very rapid food freezing
, 2012 In the industrial refrigeration natural refrigerants are gaining more and more importance, mainly because of increasing environmental concerns. In this work food processing applications are considered, with particular reference to very rapid freezing ...
Polonara F. +3 more
core +1 more source
Experimental Performance of R-1234yf as a Drop-in Replacement for R-134a in Domestic Refrigerators
, 2012 Concerns about anthropogenic climate change have generated an interest in low global warming potential (GWP) refrigerants and have spawned policies and regulations that encourage the transition to low GWP refrigerants. Recent research has largely focused
Karber, Kyle M. +2 more
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Advanced Optical Materials, Volume 14, Issue 25, 3 July 2026.A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez +4 more
wiley +1 more source
Düzce Üniversitesi Bilim ve Teknoloji DergisiThis study comprehensively analyses the energy, exergy, and environmental performance of alternative low GWP refrigerants used to replace R404A and R410A refrigerants, with high global warming potential (GWP), in vapor compression cooling systems.
Ragıp Yıldırım +2 more
doaj +1 more source
Flow condensation heat transfer coefficient and pressure drop data for R134a alternative refrigerants R513A and R450A in a 0.95-mm-diameter minichannel. [PDF]
Data Brief, 2022 Morrow JA, Derby MM.
europepmc +1 more source
Development of an alternative refrigeration cycle
International Journal of Energy Research, 1991 The paper describes the experimental development of an alternative regenerative refrigeration cycle. The cycle attempts to overcome the inefficiencies caused by flash gas entering the evaporator by a novel use of the main compressor. The system incorporates an extra vessel in place of the traditional expansion valve.
N. J. Hewitt +2 more
openaire +1 more source
Neodymium‐Doped Nanocrystals for Sensing Cellular Temperature at the Nanoscale
Advanced Optical Materials, EarlyView.Neodymium‐doped NaYF4 nanocrystals are engineered as bright, biocompatible nanothermometers for intracellular temperature mapping. Their ratiometric near‐infrared emission enables highly sensitive, nanoscale thermal readouts in living cells. Combined with gold nanostars for photothermal therapy, they reveal pronounced subcellular heating heterogeneity ...
Maria Bravo +13 more
wiley +1 more source
Feasibility of R1270 as an Alternative Refrigerant to Replace R134a in Refrigerator [PDF]
Proceedings of the 6th UPI International Conference on TVET 2020 (TVET 2020), 2021 Ega Taqwali Berman +3 more
openaire +1 more source
Experimental Analysis of Alternate Refrigerant Mixtures in Refrigeration System
E3S Web of ConferencesThis study focuses on conducting experimental analyses to assess the impact of alternative refrigerant blends within a vapor compression refrigeration system, with the aim of replacing the existing R134a refrigerant. These refrigerant blends are formulated by combining R600a, R1270, and R290 in four distinct mixing ratios.
R Ragavendiran +6 more
openaire +2 more sources
Development of Refrigeration Oil for Use With R32
, 2012 R410A, which has a high GWP (global warming potential) of roughly 2000, is widely used in refrigeration systems today. Various low GWP alternative refrigerants have been investigated as part of the effort to stop global warming. One such refrigerant, R32,
Takigawa, Katsuya +2 more
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