Prof.Miyazaki, Prof.Miyara, Prof.Sakoda, Prof.Kondou will make presentations at the 17th Refrigeration and Air Conditioning (Purdue Conference, USA, July 9-12, 2018)

Date: July 9-12, 2018

Venue: Purdue University, West Lafayette, Indiana, USA



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



Prof. Higashi, Prof. Miyazaki, Prof. Miyara, Prof. Kondou will make presentations at the 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

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,


The 9th Asian Conference on Refrigeration and Air-conditioning (ACRA2018) to be held at Sapporo on June 10-13, 2018.

The 9th Asian Conference on Refrigerantion and Air-conditioning (ACRA2018) will be held as follows. Prof. Higashi (NEXT-RP, Kyushu University) will deliver a keynote lecture. ACRA is a forum for exchanging the latest scientific and technological information in HVAC&R fields in Asian countries.

Date: June 10-13, 2018

Venue: Sapporo Convention Center (SORA), Sapporo, Hokkaido, Japan

Conference website:

Keynote Speakers:
Prof. Ruzhu Wang (Shanhai Jiao Tong University) 
Prof. Ji Hwan Jeong (Pusan National University) 
Prof. Liang-Han Chien (National Taipei University of Technology) 
Prof. Yukihiro Higashi (Kyushu University)



NEXT-RP Kick-off Symposium was held

NEXT-RP Kick-off symposium was held at I2CNER, Kyushu Univ. on October, 2016.

13:00-13:30 GREETINGS


Prof. Koichi Watanabe
Emeritus Professor of Keio University
“Strategic Challenge on Thermophysical Properties Research of Refrigerants”

Dr. Eric W. Lemmon
National Institute of Standards and Technology, USA
“Fundamentals of Equations of State”

Prof. Anthony Jacobi
University of Illinois at Urbana-Champaign
“Predicting Transitions in Two-Phase, Liquid-Vapor Flow Morphology”

16:30-18:00 RECEPTION


NEXT-RP was established.


The Research Center for Next Generation Refrigerant Properties (NEXT-RP) was established within I2CNER on April 1, 2016.

The objectives of this new center will be:

  • Accurate evaluation of themophysical properties and fundamental performance of the heat exchange and air conditioning and refrigeration (ACR) cycle for zero-ozone depletion potential (ODP) and low-global warming potential (GWP) refrigerants
  • Organizing the R&D national research group led by Khushu Univeristy
  • Development of base knowledge and technology for thermophysical properties, performance of heat exchange, and the fundamentals of the ACR cycle
  • Technology transfer and assistance to ACR industrial sectors
  • Contirubutions to Japanese ACR industries to make them more competitive in the global market