Surface tension of low GWP refrigerants R1234ze(Z) and R1233zd(E)

Chieko Kondou, Ryuichi Nagata, Noriko Nii, Shigeru Koyama, Yukihiro Higashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

R1234ze(Z) and R1233zd(E) are very recently under consideration as a potential candidate to replace R245fa that is widely used in organic Rankine cycles and high-temperature industrial heat pumps. The capillary constant and surface tension of saturated R1234ze(Z) and R1233zd(E) were measured across the temperature range from 274 K to 350 K using a measuring apparatus based on the differential capillary rise method. The measurement uncertainty in the surface tension was typically 0.3 mN m-1. The experimental surface tension was well represented by a van der Waals type equation expressing the temperature dependence as, ω= 59.90 (1 - Tr)1.237 for R245fa, ω= 56.57 (1 - Tr) 1.220 for R1234ze(Z), and ω= 61.95 (1 - Tr) 1.277 for R1233zd(E), where, ω and Tr are the surface tension in mNm-1 and the reduced temperature, Tr = T/Tcrit. The critical temperatures Tcrit are given as 427.01 K for R245fa, 423.27 K for R1234ze(Z) by Higashi et al. (2015), and 438.75 K for R1233zd(E) by Hulse et al. (2012). The constants and exponents are empirically determined by the least square mean method. The above correlations represent the experimental surface tension within ±0.13, ±0.21 mN m1, and ±0.05 mN m-1 for R245fa, R1234ze(Z), and R1233zd(E), respectively.

Original languageEnglish
Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
PublisherInternational Institute of Refrigeration
Pages538-545
Number of pages8
ISBN (Electronic)9782362150128
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
Duration: Aug 16 2015Aug 22 2015

Other

Other24th IIR International Congress of Refrigeration, ICR 2015
CountryJapan
CityYokohama
Period8/16/158/22/15

Fingerprint

refrigerants
Refrigerants
Surface tension
interfacial tension
Temperature
Rankine cycle
heat pumps
critical temperature
Pumps
exponents
temperature dependence
temperature

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Kondou, C., Nagata, R., Nii, N., Koyama, S., & Higashi, Y. (2015). Surface tension of low GWP refrigerants R1234ze(Z) and R1233zd(E). In 24th IIR International Congress of Refrigeration, ICR 2015 (pp. 538-545). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2015.0111

Surface tension of low GWP refrigerants R1234ze(Z) and R1233zd(E). / Kondou, Chieko; Nagata, Ryuichi; Nii, Noriko; Koyama, Shigeru; Higashi, Yukihiro.

24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. p. 538-545.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kondou, C, Nagata, R, Nii, N, Koyama, S & Higashi, Y 2015, Surface tension of low GWP refrigerants R1234ze(Z) and R1233zd(E). in 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, pp. 538-545, 24th IIR International Congress of Refrigeration, ICR 2015, Yokohama, Japan, 8/16/15. https://doi.org/10.18462/iir.icr.2015.0111
Kondou C, Nagata R, Nii N, Koyama S, Higashi Y. Surface tension of low GWP refrigerants R1234ze(Z) and R1233zd(E). In 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration. 2015. p. 538-545 https://doi.org/10.18462/iir.icr.2015.0111
Kondou, Chieko ; Nagata, Ryuichi ; Nii, Noriko ; Koyama, Shigeru ; Higashi, Yukihiro. / Surface tension of low GWP refrigerants R1234ze(Z) and R1233zd(E). 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. pp. 538-545
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