Results 61 to 70 of about 386 (171)

Research on the Flammability Limits of R1234yf/R290 and R1234ze(E)/R290 Mixtures

Zhileng xuebao
Propane (R290) is a potential refrigerant substitute for household air conditioners. However, its flammability limits its application. In this study, the flammability limits of R290, 2,3,3,3-tetrafluoropropene (R1234yf), trans-1,3,3,3-tetrafluoropropene (
Shen Jun, Huang Yujie, Zhong Quan, Shi Hechun, Li Huajie, Zhao Huan   +5 more
doaj  

Dynamic Performance Comparison of R134a and R1234yf Refrigerants for a Vapor Compression Refrigeration Cycle

Hittite Journal of Science and Engineering, 2018
M achines like air conditioners and refrigerators, which cause significant energy consumption in countries around the world, are widely used in industry and residences.
Mert Sinan Turgut, Mustafa Turhan Çoban
doaj   +1 more source

Biological Performance of Titanium Surfaces with Different Hydrophilic and Nanotopographical Features. [PDF]

Materials (Basel), 2023
Illing B, Mohammadnejad L, Theurer A, Schultheiss J, Kimmerle-Mueller E, Rupp F, Krajewski S.   +6 more
europepmc   +1 more source

INVESTIGATION OF THE THERMOPHYSICAL PROPERTIES OF THE R744 + R1234YF BINARY SYSTEM

, 2017
In 2014, European F-gas directive plans the prohibition of fluorinated working fluids with GWP of 2500 or more from 2020. Consequently, new working fluids have to be considered in the future such as HydroFluoroOlefin, carbon dioxide or mixture of HFO with hydro-fluoro-carbon or CO 2.
Artola, P-A, Rousseau, B, Jaubert, J-N, Paricaud, Patrice, Chapoy, A, Coulier, Y, Coxam, J-y, Bouteiller, P., Tobaly, P, Masella, M, Houriez, Céline, Coquelet, Christophe   +11 more
openaire   +1 more source

Experimental Evaluation of an Automotive Heat Pump System with R1234yf as an Alternative to R134a

Arabian Journal for Science and Engineering, 2019
In this study, performance characteristics of an automotive heat pump (AHP) system using R1234yf and R134a were investigated. Compressor speeds, air temperature and air flow velocity significantly influence the system performance parameters. Therefore, the effect of compressor speeds, air flow velocities and temperatures on the system performance ...
Direk, Mehmet, Yuksel, Fikret
openaire   +2 more sources

Energy and exergy analysis of a modified three-stage auto-cascade refrigeration cycle using low-GWP refrigerants for sustainable development. [PDF]

J Therm Anal Calorim, 2023
Qin Y, Li N, Zhang H, Liu B.
europepmc   +1 more source

A Theoretical Comparative Study of Vapor-Compression Refrigeration Cycle using Al₂O₃ Nanoparticle with Low-GWP Refrigerants. [PDF]

Entropy (Basel), 2022
Li S, Lu J.
europepmc   +1 more source

Heat Transfer Analysis between R744 and HFOs inside Plate Heat Exchangers. [PDF]

Entropy (Basel), 2022
Elbarghthi AFA, Hdaib MY, Dvořák V.
europepmc   +1 more source

Buhar Sıkıştırmalı Soğutma Çevriminde R134a Yerine R1234yf ve R1234yf/Al2O3 ile R1234yf/CNTs Nanosoğutucu Akışkanların Kullanımının Termodinamiğin I. ve II. Kanunları Bakımından Teorik Olarak İncelenmesi

Gazi Journal of Engineering Sciences, 2021
BİLEN, KEMAL, DAĞIDIR, KAYHAN, ARCAKLIOĞLU, EROL   +2 more
openaire   +2 more sources

Vapor Liquid Equilibria Modeling for Strong Zeotropic Ternary System of R1234yf/R170/R14

Zhileng xuebao, 2018
The excess Gibbs free energy-equation of state "(" "G" ^"E" "-EoS) " is a new method for predicting the vapor liquid equilibrium (VLE) with respect to the equation of state (EoS) and activity coefficient method.
Qin Yanbin, Zhang Hua, Meng Zhaofeng, Zhou Guoliang   +3 more
doaj