Results 21 to 30 of about 2,852,590 (237)

Case study of liquid suction heat exchanger in a mechanical refrigeration system using alternative refrigerants

open access: yes, 2020
This paper investigates the effect of adding a liquid-suction heat exchanger on the performance of a mechanical refrigeration system using alternative refrigerants.
Mahmood, Raid Ahmed
core   +1 more source

Experimental Study of Explosion Limits of Refrigerants and Lubricants’ Mixture [PDF]

open access: yes, 2012
The explosion limits of refrigerants and lubricants’ mixture were studied. The refrigerants like R161, R1234yf and R152a are combustible. Lubricants, to a certain extent, are combustion-supporting.
Chen, Guangming, Chen, Q, Shi, Y.Q
core   +1 more source

Development of binary refrigeration system using CO2 refrigerant for convenience store

open access: yesMechanical Engineering Journal, 2016
From environmental point of view, natural refrigerants, whose Global Warming Potential (hereinafter GWP) is lower than commonly used refrigerants, have been considered in several industrial sectors.
Yukio YAMAGUCHI, Kenji AMAGAI
doaj   +1 more source

Energy and Thermal Conductivity Assessment of Dimethyl-Ether and its Azeotropic Mixtures as Alternative Low Global Warming Potential Refrigerants in a Refrigeration System

open access: yesEnvironmental and Climate Technologies, 2021
Substituting Hydrofluorocarbons with natural refrigerants in domestic refrigerators will significantly reduce the direct contributions of fluorinated gases to global warming which will be of great environmental benefit. In this study, the performances of
Bolaji Bukola Olalekan   +4 more
doaj   +1 more source

Performance Prediction of Centrifugal Compressor for Drop-In Testing Using Low Global Warming Potential Alternative Refrigerants and Performance Test Codes

open access: yesEnergies, 2017
As environmental regulations to stall global warming are strengthened around the world, studies using newly developed low global warming potential (GWP) alternative refrigerants are increasing.
Joo Hoon Park   +2 more
doaj   +1 more source

Safe Use of Flammable Refrigerants in Cooling/Heating Cycles

open access: yes, 2023
The F-Gas regulation and the resulting phasedown of fluorinated hydrocarbons (HFOs) as safe refrigerants effects an increase in research and development activities for alternative low-GWP refrigerants. Besides new synthetic refrigerants, there is a focus
Schnabel, Lena   +2 more
core   +1 more source

Theoretical comparison analysis of R134a, R1234yf, R452A and R454C refrigerants used in automobile, trailer and commercial and industrial cooling systems

open access: yesEuropean Mechanical Science
The increasing environmental disasters in recent years are caused by the release of artificial substances into the environment. The majority of artificial-containing emissions originate from petrochemical products.
Alpaslan Alkan
doaj   +1 more source

Intrapatient tumour heterogeneity and clonal evolution in an autopsy study of metastatic salivary gland cancer

open access: yesMolecular Oncology, EarlyView.
Tumour heterogeneity and clonal evolution of metastatic salivary gland cancer were evaluated in two patients with adenoid carcinoma and one patient with myoepithelial carcinoma. Radiology‐guided autopsy enabled multi‐region sampling (total samples n = 149), followed by whole‐genome sequencing and phylogenetic reconstruction (17 tumour samples, 4–7 per ...
Gerben Lassche   +10 more
wiley   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

open access: yesFEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh   +2 more
wiley   +1 more source

Intracerebral Hemorrhage Induces Monocyte TNF Signaling in Patients That Is Suppressed by BAF312

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Intracerebral hemorrhage (ICH) causes high morbidity and mortality, with neurotoxic inflammation driven by infiltrating monocytes. This study is an in‐depth longitudinal examination of the immune response during the first week of ICH in the presence and absence of the immunomodulatory drug BAF312 (Siponimod).
Jonathan Howard DeLong   +10 more
wiley   +1 more source

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