Results 131 to 140 of about 386 (171)

Flow boiling of R1234yf in a 1 mm diameter channel

International Journal of Refrigeration, 2013
Abstract Since many HFC refrigerants have relatively large values of GWP, recent development efforts have been initiated to investigate halogenated olefins as possible refrigerants, with fluorinated propene isomers, in particular, having emerged as possible solutions.
DEL COL, DAVIDE, BORTOLIN, STEFANO, TORRESIN, DANIELE, CAVALLINI, ALBERTO   +3 more
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Thermodynamic analysis of linear compressor using R1234yf

International Journal of Refrigeration, 2019
Abstract Without crank mechanism, linear compressors can provide significant advantages such as selection of refrigerants, miniaturization, high efficiency, and non-start/stop. Free motion of piston means that displacement can be modulated according to heat load and friction loss of refrigerants. R1234yf is a synthetic refrigerant with global warming
Zhaohua Li, Kun Liang, Hanying Jiang
openaire   +1 more source

Isobaric Heat Capacity Measurements of Supercritical R1234yf

Journal of Chemical & Engineering Data, 2018
R1234yf (2,3,3,3-tetrafluoropropene) is a low global warming potential (GWP) replacement for R134a, a fluid commonly used as a refrigerant in domestic and automotive air conditioning systems and as a working fluid in organic Rankine cycles. The use of R1234yf in energy conversion cycles requires an accurate determination of its thermophysical ...
Maciej Z. Lukawski, Mitchell P.E. Ishmael, Jefferson W. Tester   +2 more
openaire   +1 more source

Thermodynamic Analysis of a Refrigeration System Operating with R1234yf Refrigerant

2018
After restriction of European Union on using high-GWP refrigerants, the investigations have been directed to utilize low-GWP refrigerants in available systems to determine the suitability of their operating conditions. In this study, energy and exergy parameters were investigated as a result of using R1234yf in a refrigeration system originally ...
Oruç, Vedat, Devecioğlu, Atilla G.
openaire   +2 more sources

Measurements of Surface Tension of R1234yf and R1234ze(E)

Journal of Chemical & Engineering Data, 2017
An experimental apparatus based on the differential capillary rise method for measuring the surface tension was built up and verified. The surface tensions of R1234yf and R1234ze(E) were measured from 242 to 365 K and 242 to 380 K, respectively. The surface tension data were correlated as a function of temperature, and the average absolute deviations ...
Xiaoming Zhao, Wenhao Duan, Xiaoyang Zeng, Yu Liu   +3 more
openaire   +1 more source

Isothermal Vapor–Liquid Equilibria of the Absorption Working Pairs (R1234yf + NMP, R1234yf + DMETrEG) at Temperatures from 293.15 K to 353.15 K

Journal of Chemical & Engineering Data, 2018
The vapor–liquid equilibria (VLE) data of R1234yf + NMP and R1234yf + DMETrEG were measured at the temperature range of 293.15–353.15 K in a dual cycle experimental apparatus. The thermodynamic consistency of the VLE data was checked with an area test. The VLE data were correlated by the nonrandom two-liquid model, and the results showed that they had ...
Yibo Fang, Wenjie Guan, Kangli Bao, Yanzhi Wang, Xiaohong Han, Guangming Chen   +5 more
openaire   +1 more source

Compressed Liquid Density Measurements for 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)

Journal of Chemical & Engineering Data, 2011
A total of 13 796 compressed liquid density measurements for 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) for eight isotherms evenly spaced from (283.15 to 353.15) K for pressures from near saturation to 35 MPa are presented. In addition, a saturated liquid density correlation and a Tait correlation are developed.
Laura Fedele, J Steven Brown, Laura Colla, Andrea Ferron, Sergio Bobbo, Claudio Zilio   +5 more
openaire   +5 more sources

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

2021
Bu çalışmada; soğutucu akışkan olarak R134a kullanılan bir Buhar Sıkıştırmalı Soğutma Sisteminde (BSSS’de), R134a’nın alternatifi olarak değerlendirilen R1234yf soğutucu akışkanı, Al2O3 ve Karbon Nanotüp (CNTs) nanoparçacıklarının katkısıyla iş akışkanı olarak kullanılmıştır.
BİLEN, Kemal, DAĞIDIR, Kayhan, ARCAKLIOĞLU, Erol   +2 more
openaire   +1 more source

Compressor Performance for Varying Compositions of High-Glide Mixtures R1233zd(E)/R1234yf and R1336mzz(Z)/R1234yf

ISSN:2352 ...
Brendel, Leon Philipp Martin, Bernal, Silvan N., Roskosch, Dennis; id_orcid0000-0001-5144-8348, Arpagaus, Cordin, Bardow, André; id_orcid0000-0002-3831-0691, Bertsch, Stefan S.   +5 more
openaire   +2 more sources

Internal Heat Exchanger System Integration for R1234yf Refrigerant

SAE International Journal of Materials and Manufacturing, 2011
<div class="section abstract"><div class="htmlview paragraph">This paper will examine a mobile air conditioning (MAC) system optimized for efficiency as well as evaporator cooling capacity. Different internal heat exchanger (IHX) capacities and various thermostatic expansion valve (TXV) parameters will be applied using R1234yf refrigerant ...
Lothar Seybold, William Hill, Jean-Jacques Robin   +2 more
openaire   +1 more source