Dr Alison Subiantoro

B.Eng. (1st class hons.), M.Eng., Ph.D.


Dr. Alison Subiantoro (called Al, for short) is a Senior Lecturer in the Department of Mechanical Engineering, The University of Auckland, New Zealand. His main areas of expertise include refrigeration, HVAC, thermal power systems and thermodynamics.

Al is originally from Indonesia. After finishing high school, he went to Singapore to continue his education at the School of Mechanical and Production Engineering (now School of Mechanical and Aerospace Engineering), Nanyang Technological University (NTU). He completed his Bachelor of Engineering (with 1st class honours), followed by Master of Engineering (by research) also from NTU.
After graduation, he joined a company that deals with HVAC design and installation for buildings. He then moved back to academic life by returning to NTU as a Research Staff before eventually started his Doctor of Philosophy (PhD) program there under the supervision of Prof. Ooi Kim Tiow. His PhD thesis was about the development of a new expander mechanism, called the Revolving Vane Expander.
Al then joined the Energy Research Institute at NTU (ERI@N) in a project to optimize solar thermal collectors. He then joined the Technical University of Munich's CREATE (TUM CREATE) research team in Singapore as a Research Fellow to develop a highly efficient CO2-based air-conditioning system for electric vehicles in Asian megacities. After a year, Al was promoted to be the Group Leader of his research project team (RP 7).
In 2015, Al moved to Jakarta, Indonesia, to join Krida Wacana Christian University (UKRIDA) as a Lecturer. In 2016, he was promoted to be the Dean of the Faculty of Engineering and Computer Science at the university. In 2017, he moved to New Zealand to join The University of Auckland. Al is happily married with a daughter. He loves gardening and watching documentaries. 



  • Bachelor of Engineering (B.Eng.) with 1st class honours, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore.
  • Master of Engineering (M.Eng.), School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
  • Doctor of Philosophy (Ph.D.), School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.

Research | Current

- Energy-efficient HVAC and refrigeration systems
- Environment-friendly cooling / heating systems
- Expander and compressor technology
- Thermal management
- Thermodynamics and heat transfer
- Renewable and clean energy
- Sustainability

Teaching | Current

- MECHENG 211 - Thermofluids (from 2019)
- MECHENG 311 - Thermal Engineering (from 2018)
- MECHENG 713 - Energy Technology (from 2018)
- MECHENG 715 - Building Services (from 2017)


- Chairperson of the Dept. of Mechanical Engineering's Staff/Student Consultative Committee
- Staff representative for the Dept. of Mechanical Engineering's Maori/Pasifika students support group 
- Person-in-charge for the Dept. of Mechanical Engineering's Final Year Project Display Day


Areas of expertise

HVAC (heating, ventilation, air-conditioning), refrigeration, heat pumps, thermal energy, thermal management, thermodynamics, energy efficiency

Selected publications and creative works (Research Outputs)

  • Naseri, A., Norris, S., & Subiantoro, A. (2020). Experimental investigation of a prototype semi-dry revolving vane expander: Design challenges and performance criteria. Energy, 20510.1016/j.energy.2020.118063
    URL: http://hdl.handle.net/2292/52380
    Other University of Auckland co-authors: Stuart Norris, Ali Naseri
  • Subiantoro, A., & Ooi, K. T. (2019). Investigation of electroosmotically induced pressure gradient in rectangular capillaries. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 14510.1016/j.ijengsci.2019.103172
    URL: http://hdl.handle.net/2292/49634
  • Murthy, A. A., Subiantoro, A., Norris, S., & Fukuta, M. (2019). A review on expanders and their performance in vapour compression refrigeration systems = Synthèse des détendeurs et de leur performance dans les systèmes frigorifiques à compression de vapeur. International Journal of Refrigeration, 106, 427-446. 10.1016/j.ijrefrig.2019.06.019
    Other University of Auckland co-authors: Stuart Norris
  • Perrot, J.-F., & Subiantoro, A. (2018). Municipal Waste Management Strategy Review and Waste-to-Energy Potentials in New Zealand. SUSTAINABILITY, 10 (9)10.3390/su10093114
    URL: http://hdl.handle.net/2292/47124
  • Dubey, S., & Subiantoro, A. (2018). Numerical Study of Integrated Solar Photovoltaic–Thermal Module with a Refrigeration System for Air-Conditioning and Hot Water Production under the Tropical Climate Conditions of Singapore. International Journal of Air-Conditioning and Refrigeration, 1850021-1850021. 10.1142/S2010132518500219
    URL: http://hdl.handle.net/2292/41910
  • Subiantoro, A. (2018). Feasibility Analysis of the Hybrid Dehumidifier-Air Conditioner Technology for Small-Scale Household Applications in the Tropics. Science and Technology for the Built Environment, 25 (2), 177-188. 10.1080/23744731.2018.1506678
    URL: http://hdl.handle.net/2292/47115
  • Subiantoro, A. (2017). Expander-based atmospheric water harvesting in the tropics. Asian Journal of Water, Environment and Pollution, 14 (3), 1-8. 10.3233/AJW-170020
    URL: http://hdl.handle.net/2292/35848
  • Subiantoro, A., Wong, K., & Ooi, K. (2016). Exergy analysis of the revolving vane compressed air engine. International Journal of Rotating Machinery, 2016.10.1155/2016/5018467


Contact details

Primary office location

Level 9, Room 931
New Zealand

Web links