Presentation

• (September 3-6, 2024) Japan Society of Refrigeration and Air Conditioning Annual Conference+

  NEXT-RP researchers presented at “2024 JSRAE Annual Conference” held on Sep. 3-6 2024.
  Click here for details →https://jsrae-nenji.org/nenji2024/
   
  Presentations by NEXT-RP researchers:
  1. Measurements of Viscosity and Thermal Conductivity of R1132(E)
  Tuhin Rahman Atiqur (Saga University), Hirata Ryuga, Duc Xuan Tran, Ogawa Ryuhi, Miyara Akio
   
  2. 【Keynote】The Heat Transfer Family — History of Steam Power Laboratory of Kyushu University –
  Takata Yasuyuki (Kyushu University)
   
  3. Theoretical Prediction of Speed of Sound for Binary Refrigerant Pairs: R134a/245fa and R125/245fa
  ◎ Itaiwi Alaa (Kyushu University), Sameen Isha, Akasaka Ryo (Kyushu Sangyo University), Miyazaki Takahiko (Kyushu University), Higashi Yukihiro, Hiratsuka Kengo (Advanced Technology R&D Center, Mitsubishi Electric Corporation), Fujiwara Tomoya, Thu Kyaw (Kyushu University)
   
  4. Speed of Sound Measurement in Lubricant/Refrigerant Mixture using Time-of-Flight Technique
  ◎ Sameen Isha (Kyushu University), Itawi Alaa, Miyazaki Takahiko, Higashi Yukihiro, Hiratsuka Kengo (Mitsubishi Electric Corporation), Fujiwara Tomoya, Thu Kyaw (Kyushu University)
   
  5. Solid-Liquid Equilibrium and Cooling Performance of R1123/CO2 for Low Temperature Cascade Cyles
  Ogawa Kota (Nagasaki University), Miyoshi Kohei, Miao Yufon, Morisaki Kotaro, Mori Keta, Kondou Chieko
   
  6. Thermodynamic Property Measurements of Low-GWP Refrigerant Blends HFO1123+R1234yf and R1132(E)+R1234yf
  Higashi Yukihiro (Kyushu University), Sakoda Naoya, Thu Kyaw, Miyane Kozue, Takata Yasuyuki
   
  7. Measurements and Empirical Models for Viscosity and Thermal Conductivity of Low GWP Refrigerants
  Miyara Akio (Saga University), Morshed Monjur, Tuhin R Atiqur, Duc X Tran, Hirata Ryuga, Ogawa Ryuhi
   
  8. Heat Pump Cycle Performance Evaluation and Influence of Property Calculation Accuracy in Refrigerant Mixtures Including HFO-1123
  Miao Yufeng (Nagasaki University), ◎ Mori Keita, Ogawa Kota, Fukuda Sho (Kyushu Sangyo University), Morisaki Kotaro (Nagasaki University.), Akasaka Ryo (Kyushu Sangyo University), Kondou Chieko (Nagasaki University)

  (June 23-28, 2024) The 22nd Symposium on Thermophysical Properties (Boulder, CO, USA)+

  NEXT-RP researchers presented at “The 22nd Symposium on Thermophysical Properties” held on June 23-28, 2024.
  Click here for details →https://www.thermosymposium.org/
   
  Presentations by NEXT-RP researchers:
  Vapor-Liquid Equilibrium Measurements of Binary Refrigerant Blends R1234yf + R1123, R1132(E), R32, and R1243zf
  Naoya Sakoda*(Kyushu University), Hiroaki Ishimaru, Naoki Fujii, Yasuyuki Takata and Yukihiro Higashi
   
  A New Fundamental Equation of State for 3,3,3-Trifluoroprop-1-ene (R-1243zf)
  Ryo Akasaka* and Eric W. Lemmon
   
  Viscosity Measurements of Binary Mixtures of Difluoromethane (R-32) and 2,3,3,3-Tetrafluoropropene (R-12324yf) Refrigerants and Their Empirical Models
  Monjur Morshed*(Saga University), Atiqur R. Tuhin and Akio Miyara

  NEXT-RP researchers presented at ” 2021 JSRAE Annual Conference” held on September 8-10 (online).+

  NEXT-RP researchers presented at ” 2021 JSRAE Annual Conference” held on September 8-10 (online).
  Click here for details →https://www.jsrae-nenji.org/nenji2021/
  
   
  Presentations by NEXT-RP researchers:
  １．Study on the vapor-liquid equilibrium property measurements for the ternary HFO-1123/HFO-1234y/HFC-32 mixtures
  　　Hiroyuki Miyamoto, Tessei Yamada
  ２．Measurements of PVTx properties for binary and ternary refrigerant mixtures composed of R32, R1234yf and CO2
  　　Eiji Tanaka, Katsuyuki Tanaka
  ３．Measurements of PVTx properties for R13I1 and its mixtures
  　　Katsuyuki Tanaka
  ４．Measurements of isobaric specific heat capacity for binary refrigerant mixtures composed of R32, R1234yf
  　　Katsuyuki Tanaka
  ５．Surface tension measurement by a differential capillary-rise method for a binary mixture R1123/CF3I
  　　Takumi Numadate, Yuki Jojima, Yuma Otsubo, LIU Yufei, Chieko Kondou
  ６．Molecular dynamic simulation predicting thermophysical properties for a binary system R1123/CF3I
  　　Tomoaki Imai, Takehiro Miura, Takemasa Kawahara, Tetsuya Okumura, LIU Yufei, Chieko Kondou
  ７．Update on thermophysical property evaluation for low-GWP refrigerants in the JSRAE Thermodynamic Table
  　　Yohei kayukawa, Naoya Sakoda, Chieko Kondou, Keishi Kariya, Sho Fukuda, Yukihiro Higashi, Akio Miyara , Ryo Akasaka
  ８．A Generalized Correlation for the Vapor Pressures of Low-GWP Refrigerants
  　　Shun Sakaniwa, Ryo Akasaka, Yohei Kayukawa, Jeong Jongsoo , Kiyoshi Saito
  ９．Experiment on boiling heat transfer of ternary mixture refrigerant R455A in multiport tube
  　　Naoki Mikajiri , Maika Nobunaga, Daisuke Jige, Norihiro Inoue
  10．Experimental performance evaluation of a heat pump cycle using low GWP mixed refrigerant (R455A)
  　　Kanta Kawagita , Yusuke Doi, Nobuo Takata, Frantisek Miksik, Kyaw Thu, Takahiko Miyazaki

  NEXT-RP researchers presented at “The Sixth IIR TPTPR Conference” held on September 1-3 (online).+

  NEXT-RP researchers presented at “The Sixth IIR TPTPR Conference” held on September 1-3 (online).
  Click here for details →http://static.gest.unipd.it/TPTPR2021/

   
  Presentations by NEXT-RP researchers:
  １．Keynote Lecture” Thermodynamic Property Measurements of Next-Generation Refrigerants”
  　　Yukihiro Higashi
  ２．“Thermodynamic Properties Measurement of Binary HFC32 + CF3I Refrigerant Mixtures”
  　　Naoya Sakoda, Yukihiro Higashi
  ３．“Surface Tension Measurement of Refrigerant Mixtures R448A and R455A by a Differential Capillary Rise Method”
  　　Liu Yufei, Chieko Kondou.
  ４．“A New Fundamental Equation of State for R1123 and its Applications to Mixture Models for Mixtures with R32 and R1234yf”
  　　Ryo Akasaka, Eric W. Lemmon

  (June 20-25, 2021) 21st SYMPOSIUM ON THERMOPHYSCAL PROPERTIES (online)+

  NEXT-RP researchers will made presentations at “21st SYMPOSIUM ON THERMOPHYSCAL PROPERTIES” held on June 20-25 (online). Click here for details →https://www.thermosymposium.org/   Presentations by NEXT-RP researchers: 1. The Measurements of Saturation Vapor Pressures, and the Critical Pressure for Trifluoroiodomethane (CF3I, R13I1) and a Vapor Pressure Correlation Uthpala Perera, Kyaw Thu, Takahiko Miyazaki, Naoya Sakoda, Yukihiro Higashi 2. Thermodynamic Properties Measurement of CF3I Naoya Sakoda, Yukihiro Higashi 3. A New Fundamental Equation of State for cis-1-Chloro-2,3,3,3-tetrafluoropropene [R1224yd(Z)] Ryo Akasaka, Eric W. Lemmon 4. Speed of Sound Measurement for HFO Refrigerants in the Liquid Phase Takashi Nishiyama, Taro Kuranari and Lei Gao, Yukihiro Higashi, Ryo Akasaka 5. Measurement of Transport Properties of R1336mzz(E) Atiqur Rahman Tuhin, Dipayan Mondal, Naomasa Amakusa, Keishi Kariya, Akio Miyara

  (June 16-18, 2021) HFO 2021 (2nd IIR Conference on HFOs and GWP blends)+

  NEXT-RP researchers made presentations at “HFO 2021 (2nd IIR Conference on HFOs and GWP blends)” held on June 16-18. Click here for details →https://biz.knt.co.jp/tour/2021/06/hfo/index.html   Presentations by NEXT-RP researchers: １．Keynote Lecture “Thermodynamic property measurements of next generation refrigerant blends”, Yukihiro Higashi (Kyushu University) 2. Characteristics of two phase flow by dynamic image analysis in a plate heat exchanger, Sora Hyodo, Keishi Kariya, Akio Miyara (Saga university) 3. Surface tension measurement by a differential capillary rise method for a low-GWP refrigerant CF3I, Takumi Numadate, Yuki Jojima, Yufei Liu, Chieko Kondou (Nagasaki University) 4. Viscosity measurement of R1336mzz(E) by tandem capillary tubes methodNaomasa Amakusa, Dipayan Mondal, Atiqur R. Tuhin, Keishi Kariya, Akio Miyara 5. Measurement of thermal conductivity of 3,3,4,4,5,5 HFCPEDipayan Mondal, Atiqur R. Tuhin, Keishi Kariya, Akio Miyara 6. Experimental Investigation of Condensation and Evaporation Heat Transfer Characteristics of R454C in Plate Heat ExchangerTun Thiha, Kunpei Yoshida, Diaw Saide, Keishi Kariya, Akio Miyara 7. Speed of sound measurement for R-1336mzz(Z) and R-1233zd(E) in the liquid phase, Takashi Nishiyama, Taro Kuranari, Lei Gao (Fukuoka University), Yukihiro Higashi (Kyushu University), Ryo Akasaka (Kyushu Sangyo University) 8. Molecular Simulation for Liquid Vapour Equilibria of Ethylene, R1132a, R1132(E) and R1123Chieko Kondou, Tetsuya Okumura, Takehiro Miura, Yufei Liu (Nagasaki Univ) 9. A New ISO 17584 Standard Equation of State for 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and its Modification for trans-1,2-Difluoroethene [R1132(E)], Ryo Akasaka (Kyushu Sangyo University), Eric W. Lemmon (National Institute of Standards and Technology) 10. Saturation pressure measurements of the new refrigerant HFO1132(E)Uthpala Amoda Perera, Kyaw Thu, Takahiko Miyazaki, Naoya Sakoda, Yukihiro Higashi (Kyushu University) 11. Thermodynamic properties measurement of HFO1132(E), Naoya Sakoda, Yukihiro Higashi (Kyushu University)

  (October 28-30, 2020) The 40th Symposium on Japan Society of Thermophysical Properties” (Web Symposium)+

  Click here for details → http://jstp-symp.org/symp2020/index.html

  (September 9-11, 2021) 2020 Japan Society of Refrigeration and Air Conditioning Annual Conference (Web Lecture)+

  Click here for details → https://jsrae-nenji.org/nenji2020/

  (July 9-12, 2018) 17th Refrigeration and Air Conditioning (Purdue Conference, USA)+

  Date: July 9-12, 2018 Venue: Purdue University, West Lafayette, Indiana, USA WebSite：https://engineering.purdue.edu/herrickconf
  Presentations by NEXT-RP researchers:
  1. Kondou, C., Koyama, S., “Heat Transfer and Pressure Drop of R1123/R32 Flow in Horizontal Microfin Tubes During Condensation and Evaporation” 2. Kondou, C., Matsuzono, T., Higashi, Y., “Surface Tension Measurement of Low GWP Refrigerant Mixture HFO-1123/HFC-32 and HFO-1234ze(E)/HFC-32″ 3. Performance Evaluation of Heat Pump Cycle using Low GWP Refrigerant Mixtures of HFC-32 and HFO-1123 Shigeru Koyama, Takahiko Miyazaki, Junki Hirayama, Nobuo Takata, Yukihiro Higashi Kyushu University, Japan 4. The Analysis of Binary Fluid Ejector Assisted Solar Desalination System Olexiy Buyadgie1,2, Oleksii Draknia3,4, Takahiko Miyazaki3,5, Dmytro Buyadgie4, Igor Vasil’ev4 1Wilson Engineering Technologies, Inc, United States of America; 2V.S. Martynovsky Institute of Refrigeration, Cryogenic Technologies and Eco Energetics, Ukraine; 3Kyushu University, Japan; 4Wilson, Ejector Technology Lab, Ukraine; 5Faculty of Engineering Sciences, Kyushu University

  (June 24-29, 2018) 20th Symposium on Thermophysical Properties (Boulder, CO, USA)+

  Date: June 24-29, 2018 Venue: University of Colorado, Boulder, Colorado, USA WebSite：https://thermosymposium.nist.gov/
  Presentations by NEXT-RP researchers:
  1. Ryo Akasaka, Eric W. Lemmon, Mark O. McLinden, A New Fundamental Equation of State for cis-1,1,1,4,4,4-Hexafluoro-2-butene (R-1336mzz(Z))

  (June 18-20, 2018) 13th IIR-Gustav Lorentzen Conference (Valencia, Spain)+

  Date：June 18-20, 2018 Venue：Valencia, Spain WebSite：http://www.gl2018.upv.es/
  1. Md Hasanuzzaman, Akio Miyara, Similarity Analysis on Heat and Mass Transfer of Absorption Process For the Falling Film Flow on a Porous Medium

  (June 10-13, 2018) 9th Asian Conference on Refrigeration and Air-conditioning (ACRA2018, Sapporo, Japan)+

  The　9th　Asian　Conference　on　Refrigeration　and　Air-conditioning　(ACRA　2018)
  Date：June 10-13, 2018 Venue: Sapporo Convention Center, Sapporo, Japan WebSite：http://www.acra2018.org/
  Presentations by NEXT-RP Researchers
  1. Higashi (Keynote Speaker), “Thermodynamic Properties of Next Generation Refrigerants”
  2. Effect of desorption temperature on performance of the desiccant dehumidification system ◯ Indri Yaningsih (Kyushu University), Agung Tri Wijayanta (Sebelas Maret University), Takahiko Miyazaki, Shigeru Koyama (Kyushu University)
  3. Condensation heat transfer of R1234ze(Z) in the vertical channels ◯ Sho Fukuda, Shohei Oishi, Teppei Tanoura, Takahiko Miyazaki, Nobuo Takata, Shigeru Koyama (Kyushu University)
  4. Evaluation of solid desiccant drying system for drying of grains ◯ Shazia Hanif (Kyushu University), Muhammad Sultan (Bahauddin Zakariya University), Takahiko Miyazaki, Shigeru Koyama (Kyushu University)
  5. Kondou, C., Nakao, R., Koyama, S., Motomura, F., “Enhancement of R1234ze(E) Boiling on Copper Surfaces Modified by Laser Interference Surface Structuring”
  6. Kondou, C., Matsuzono, T., Tsuyashima, T., Higashi, Y., “Surface tension measurement of low GWP refrigerant mixture HFO-1123/HFC-32”
  7. Kotaro Yamaguchi, Md Jahangir Alam, Keishi Kariya, Akio Miyara, Thermal Conductivity Measurement of 1,1,1,3,3,3-Hexafluoro-2-Methoxypropane (R-356mmz)in High Temperature Region”
  8. Ryo Shibata, Md Hasan Ali, Duc Xuan Tran, Akio Miyara, Keishi Kariya, Numerical Analysis of Double Tube Vertical Ground Heat Exchanger to Optimize the Size and Performance.
  9. Shota Wakasugi1)*, Koki Sonoda1), Keishi Kariya2), and Akio Miyara2,3 Evaporation and Condensation Local Heat Transfer of R-32/R-1123 Mixture in a Plate Heat Exchanger,