TY - JOUR
T1 - Surface tension of low GWP refrigerants R1243zf, R1234ze(Z), and R1233zd(E)
AU - Kondou, Chieko
AU - Nagata, Ryuichi
AU - Nii, Noriko
AU - Koyama, Shigeru
AU - Higashi, Yukihiro
N1 - Funding Information:
The tested R1234ze(Z) and R1233zd(E) were supplied by Central Glass Co., Ltd., Japan. The tested R1243zf was supplied by Mexichem, Ltd., UK. This study is sponsored by the project on the “Development of High Efficiency and Non-Freon Air Conditioning Systems” of the New Energy and Industrial Technology Development Organization (NEDO) in Japan. The authors are grateful to Mr. Okabe, Mr. Doi, and Mr. Domoto at Iwaki Meisei University for their kind assistance.
Publisher Copyright:
© 2015 Elsevier Ltd and IIR. All rights reserved.
PY - 2015/5
Y1 - 2015/5
N2 - Abstract The surface tension of R1243zf, R1234ze(Z), and R1233zd(E) were measured at temperatures from 270 K to 360 K by an experimental apparatus based on the differential capillary rise method. The deviation between the measured surface tension of R134a and R245fa and the calculated surface tension with REFPROP 9.1 (Lemmon et al., 2013) was ±0.13 mN m-1, which is less than the estimated propagated uncertainty in surface tension of ±0.2 mN m-1. Eleven points, thirteen points, and ten points of surface tension data were provided for R1243zf, R1234ze(Z), and R1233zd(E), respectively, in this paper. The measured data and the estimated surface tension using the methods of Miller (1963), Miqueu et al. (2000), and Di Nicola et al. (2011) agree within the standard deviation of ±0.43 mN m-1. The empirical correlations that represent the measured data within ±0.14 mN m-1 were proposed for each refrigerant.
AB - Abstract The surface tension of R1243zf, R1234ze(Z), and R1233zd(E) were measured at temperatures from 270 K to 360 K by an experimental apparatus based on the differential capillary rise method. The deviation between the measured surface tension of R134a and R245fa and the calculated surface tension with REFPROP 9.1 (Lemmon et al., 2013) was ±0.13 mN m-1, which is less than the estimated propagated uncertainty in surface tension of ±0.2 mN m-1. Eleven points, thirteen points, and ten points of surface tension data were provided for R1243zf, R1234ze(Z), and R1233zd(E), respectively, in this paper. The measured data and the estimated surface tension using the methods of Miller (1963), Miqueu et al. (2000), and Di Nicola et al. (2011) agree within the standard deviation of ±0.43 mN m-1. The empirical correlations that represent the measured data within ±0.14 mN m-1 were proposed for each refrigerant.
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U2 - 10.1016/j.ijrefrig.2015.01.005
DO - 10.1016/j.ijrefrig.2015.01.005
M3 - Article
AN - SCOPUS:84925064128
SN - 0140-7007
VL - 53
SP - 80
EP - 89
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
M1 - 2959
ER -