Dr. Eng. Ir. Rahmat Iman Mainil, S.T., M.T., IPM, ASEAN Eng.

Associate Professor (Lektor Kepala) — Thermal & Fluid Engineering

NIP. 19860222 200803 1 001

Office Address
Thermal Engineering Laboratory 
Dept. of Mechanical Engineering 
Engineering Faculty — Universitas Riau. 
Jl. Hr. Subrantas Km. 12.5, Panam, Pekanbaru, Riau, Indonesia

PERSONAL DETAILS

FORMAL EDUCATION

PROFESSIONAL EXPERIENCES

• Coordinator of the Master’s Program in Mechanical Engineering, Department of Mechanical Engineering, Riau University, Indonesia. July 2024 – Present.
• Head of Thermal Engineering Laboratory, Department of Mechanical Engineering, Riau University, Indonesia. August 2021 – 2025.
• Deputy of Center For International Affairs, Riau University. 2023 – 2024.
• Chairman of Quality Assurance System of Engineering Faculty, Universitas Riau. January 2023 – February 2025.
• Coordinator of Monitoring and Evaluation of Quality Assurance System, Engineering Faculty, Universitas Riau. January 2022 – December 2023.
• Associate Professor (Lektor Kepala), Thermal Engineering Laboratory, Department of Mechanical Engineering, Riau University, Indonesia. June 2023 – present. Teaching, researching, and social servicing in mechanical engineering, especially thermal and fluids engineering.
• Assistant Professor (Lektor), Thermal Engineering Laboratory, Department of Mechanical Engineering, Riau University, Indonesia. September 2014 – Mei 2023. Teaching, researching, and social servicing in thermal and fluids engineering.
• Managing Editor, Jurnal Sains dan Teknologi, Engineering Faculty, Riau University. 2020 – present.
• Section Editor, Journal of Ocean, Mechanical, Aerospace, Sains, and Engineering (JOMASE). 2021 – Present.
• Research Assistant, Thermal Engineering Laboratory, Department of Mechanical Science and Engineering, Hiroshima University, Japan. April 2017 – March 2020. Projects include supercritical water gasification research (POME, dihydroxyacetone, glyceraldehyde) and effect of heating rate studies.
• Coordinator of SUBARAGOI Club, International student club in Hiroshima, Japan. 2019–2020 (part of Kitahiroshima project).
• Person in Charge of Biodiesel Production with Supercritical Ethanol in Kitahiroshima, Japan. 2018–2020 (Kitahiroshima project).
• Engineering Staff, Technology Transfer Section, Center for Ceramics, Ministry of Industry of the Republic of Indonesia. April 2008 – August 2014. Activities: researching, manufacturing, training, ceramics production technology.

HONORS, AWARDS, AND RECOGNITION

• Best Presenter at International Conference on Mechanical Engineering and Emerging Technologies (ICOMEET 2023). 1 November 2023.
• Awardee of Indonesia Endowment Fund for Education (LPDP) scholarship (April 2017–March 2020). (Persiapan Keberangkatan (PK)-80).
• Winner (Rank 1st) on “Appropriate Technology Competition for Village Society,” Riau Province, November 2015.
• The Acknowledgement of the 3rd Best student in Faculty of Mechanical and Aerospace Engineering with CUM LAUDE achievement (2011).
• The Acknowledgement of the 3rd Best student in Mechanical Engineering Department (2007).

PROFESSIONAL AFFILIATIONS

• Head Deputy for Earth and Energy of Persatuan Insinyur Indonesia (PII) Wilayah Riau. 2025 – Present.
• Secretary of Persatuan Insinyur Indonesia (PII) Kota Pekanbaru. 2021 – 2024.
• Member of Japan Institute of Energy (JIE), Membership Number: 1810103. (2018/11/19 – 2020).
• Member of Japan Society of Mechanical Engineers, Membership Number: 1823575. (2018/6/20 – 2020).
• Member of Society of Chemical Engineers Japan (SCEJ). (2018–2020).

INSTRUCTOR AT TRAINING / WORKSHOP

• Instructor of Training for K3 (Health Security and Environment) Expert of Lifting and Transporting Aircraft. 2023.
• Referee of National Machine Design Competition at Institute Technology of Padang (ITP). 2022.
• Instructor of IELTS Workshop for Riau University lecturer — “IELTS Opens Window of The World”. Universitas Riau, 2022.

RESEARCH

• Optimizing Bio-Oil Production through Co-Pyrolysis of Empty Palm Fruit Bunches and Plastic Waste as Alternative Fuels. (Research Funded by DPPM, Ministry of Higher Education, Research, and Technology (Kemendiktiristek), 2025).
• Enhancement of Power Generation and Thermal Efficiency of Photovoltaic Thermal (PVT) System With the Addition of Wick in Heat Pipe as Heat Transfer Media. (Funded by DIPA University of Riau, 2024).
• Photovoltaic Thermal (PVT) as a Solar Power Generation and Heat Pipe Based Water Heater. (Funded by DIPA University of Riau, 2023).
• Dryer Cabinet with Heat Pump Technology at The same Time As Spot Cooling. (Research Funded by University of Riau, 2021).
• Effect of Heating Rate on POME Conversion in Supercritical Water. (Funded by Indonesia Endowment Fund for Education (LPDP), 2019).
• Supercritical Water Gasification of Dihydroxyacetone. (Funded by Hiroshima University, 2019).
• Supercritical Water Gasification of Palm Oil Mill Effluent (POME). (Funded by Indonesia Endowment Fund for Education (LPDP), 2018).
• Supercritical Water Gasification of Glyceraldehyde. (Funded by Hiroshima University, 2017).
• Development of Portable Beverages Box Cooling System Using One Stage Thermoelectric Module. (Funded by University of Riau, 2016).
• Utilization of Thermoelectric Module as Cooling Element for Beverages Box. (Funded by University of Riau, 2015).
• Development of Centrifugal Casting Machine For Tubular Ceramics Manufacturing (Funded by Ministry of Industry, 2013).
• Development of Solar Dryer For Small Ceramics Industry (Funded by Ministry of Industry, 2012).

RESEARCH PUBLISHED

1. Helmizar, Veni Fejriati, Agus Nuramal, Afdhal Kurniawan Mainil, Rahmat Iman Mainil, Khotso Shai, Azridjal Aziz. Flow Characteristics Around Circular and Rectangular Bluff Bodies Near a Wall at Varying Gap Ratios. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 133. 2025.
2. H Helmizar, N Windiharto, Y Witanto, AK Mainil, RI Mainil, K Sai. Experimental study on a laboratory-scale archimedes screw turbine using pitch-to-diameter ratio for low-head hydropower. Jurnal Polimesin 23 (3), 301-307. 2025.
3. H Hafizah, RI Mainil, N Nazaruddin. The Application of Numerical Study for Dynamic Vibration Absorber in Suspension System to Improve Four Wheel Vehicle Comfort. Journal of Ocean, Mechanical and Aerospace-science and engineering. 2025.
4. H Hasibuan, RI Mainil, H Syawal, NE Darfia, A Martina. Optimalisasi Pemasaran Produk Olahan Ikan Patin melalui Pemanfaatan Pasar Online. 2025.
5. FF Nasution, RI Mainil, I Taib, A Martin. Experiment Investigation of Air Blast Freezer in a Cascade Refrigeration System with R290/R32 for Vannamei Shrimp. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. 2025.
6. M Efendi, RI Mainil, A Aziz. Comparison of the Efficiency of Solar PV Fixed, Single-Axis, and Dual-Axis Solar Trackers: A Review. Jurnal Konversi Energi dan Manufaktur 10 (1), 84-93. 2025.
7. RI Mainil, JJ Panjaitan, AK Mainil, H Putra, A Aziz. Oil production from polypropylene plastic via pyrolysis. AIP Conference Proceedings 3223 (1), 030012. 2025.
8. RI Mainil, AK Mainil, F Afif, A Havendry, DS Arief, A Aziz. Effect of water flowrate on performance of heat pipe photovoltaic thermal (HP-PV/T). AIP Conference Proceedings 3223 (1), 030023. 2025.
9. RI Mainil, A Rahman, DS Arief, AK Mainil, MA Hossain, A Azridjal. Performance Comparison of Heat Pipe Photovoltaic/Thermal (HP-PV/T) Wick and Wickless at Different Tilt Angle. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 126. 2025.
10. RI Mainil, F Afif, DS Arief, AK Mainil, A Aziz. Performance Comparison of Photovoltaic (PV), Heat Pipe Photovoltaic/Thermal (HP-PV/T), and Heat Pipe Solar Thermal Collectors (HP-STC): Energy Analysis. International Journal of Heat & Technology 42 (3). 2024.
11. T Irawan, RI Mainil, A Aziz. Evaluasi Kinerja Direct Expansion Solar-Assisted Heat Pump Water Heater Kapasitas 30 Liter dengan Menggunakan Refrigeran R134a. Jurnal Rekayasa Mesin 15 (1), 321-327. 2024.
12. RI Mainil, AH Barqi AD, AK Mainil, A Aziz. The energy harvesting method from roadway by thermoelectric generator. AIP Conference Proceedings 3053 (1), 020016. 2024.
13. A Martin, FF Nasution, RI Mainil. Design of Air Blast Freezing System Using Cascade Refrigeration R290/R32 System with Capacity 5kg. Journal of Ocean, Mechanical and Aerospace-science and engineering — 68. 2024.
14. N Saputra, RI Mainil, A Aziz. Pembangkit energi listrik memanfaatkan penyerapan panas jalan beton menggunakan teknologi termoelektrik generator (TEG) dengan pelat penyerap tembaga berbentuk I. Jurnal Teknologi 15 (2), 325-336. 2023.
15. RI Mainil, AK Mainil, A Aziz, F Afif. Design of photovoltaic/thermal (PV/T) with heat pipes as a heat transfer medium used for water heater. Jurnal Polimesin. 2023.
16. N Nofriadi, A Aziz, RI Mainil. Design and Manufacture of Portable Screw Turbine of Pico Hydro Power Plant for Road Lighting in Rural Area. Journal of Ocean, Mechanical and Aerospace-science and engineering — 67 (1), 1-6. 2023.
17. A Aziz, DI Putra, AK Mainil, RI Mainil. Cooling and Heating Box Design Using Thermoelectric Cooling Module as a Heat Source. Jurnal Mechanical. 2022. Vol 13.
18. R Asfaranda, RI Mainil, A Aziz. Experimental study of direct-expansion solar-assisted heat pump water heater with capacity of 60 liters using R134A refrigerant. Jurnal Teknik mesin Indonesia. 2021.
19. Rahmat Iman Mainil, Ahmad Wisnu Sulaiman, Afdhal Kurniawan Mainil Azridjal Aziz. Performance enhancement of split air conditioner during evaporative cooling application. Journal of Advanced Research in Fluid Mechanics and Thermal Science, 2021.
20. Azridjal Aziz, Muhammad Rifat Syahnan, Afdhal Kurniawan Mainil, Rahmat Iman Mainil. Experimental Investigation of a Split Air Conditioning Using Condensate as Direct Evaporative Cooling. Journal of Advanced Research in Fluid Mechanics and Thermal Science, 2021.
21. Rahmat Iman Mainil, Yukihiko Matsumura, Effect of Heating Rate on Gasification and Phosphorus Recovery For Palm Oil Mill Effluent in Supercritical Water. The Journal of Supercritical Fluids, 2021, Vol. 173.
22. Rahmat Iman Mainil, Nattacha Paksung, Yukihiko Matsumura, Determination of retro-aldol reaction type for glyceraldehyde under hydrothermal conditions, The Journal of Supercritical Fluids, 2019. Vol. 143, pp. 370–337.
23. Azridjal Aziz, Rahmat Iman Mainil, Afdhal Kurniawan Mainil, Syafri, Muhammad Faizal Syukrillah, Design of Portable Beverage Cooler Using One Stage Thermoelectric Cooler (TEC) module, Aceh International Journal of Science and Technology (AIJST), 2017, vol. 6, no. 1.
24. ... (additional publications and conference proceedings listed in the original CV are preserved)

CONFERENCES

• Rahmat Iman Mainil. Performance evaluation of photovoltaic thermal (PVT ) solar water heater with natural circulation of water. 3rd Mandalika Multi Conference on Science and Engineering (MIMSE-2024), Lombok, Indonesia.
• Rahmat Iman Mainil. Oil Production from Polypropylene Plastic via Pyrolysis. The International Conference on Mechanical Engineering and Emerging Technologies (ICOMEET II – 2023), Padang, Indonesia.
• Rahmat Iman Mainil. Effect of Water Flow Rate on Performance of Heat Pipe Photovoltaic Thermal (HP-PV/T). International Conference on Mechanical engineering research and application (ICOMERA) (2023). Univ Brawijaya, Malang, Indonesia.
• Rahmat Iman Mainil. Conversion Characteristics of Polypropylene (PP) Plastic for Oil Production by Pyrolysis Method. Seminar Nasional tahunan teknik Mesin, SNTTM XXI (2023), Bandung, Indonesia.
• Rahmat Iman Mainil. The Energy Harvesting Method from Roadway by Thermoelectric Generator. International Conference on Design, Energy, Materials and Manufacture (ICDEMM 2022). Pekanbaru, Indonesia.
• Rahmat Iman Mainil, Ahmad Wisnu Sulaiman, Afdhal Kurniawan Mainil, Azridjal Aziz. Performance Enhancement of 1 HP Split Air Conditioner During Evaporative Cooling Application. The 4th World Virtual Conference on Applied Sciences and Engineering Applications In conjunction with The 6th International Symposium on Fluid Mechanics and Thermal Sciences, Malaysia, 2021.
• Rahmat Iman Mainil. Effect of Heating Rate on Supercritical Water Gasification of Palm Oil Mill Effluent, Join Conference on Renewable Energy and Nanotechnology (JCREN), Makassar – Indonesia, 5–6 November 2019.
• ... (additional conferences from the original CV are preserved)

COMMUNITY SERVICE

• Pengembangan pemasaran produk aneka ikan patin berkualitas berbasis pasar online di Rumbai Bukit Pekanbaru. 2024.
• Peningkatan mutu kolam ikan patin dan diversifikasi produk olahan ikan patin di Rumbai Bukit Pekanbaru. 2023.
• Peningkatan mutu kolam ikan patin dan diversifikasi produk olahan ikan patin di Rumbai Bukit Pekanbaru. 2022.
• Sosialisasi tatalaksana pengoperasian dan perawatan teknologi penjernih air di Desa Buluh Cina, Kecamatan Siak Hulu, Kabupaten Kampar. 2022.
• Ibm usaha kecil laundry kiloan di Jl. Purwodadi, Kelurahan Sidomulyo Barat, Pekanbaru. 2016.

SKILLS

Language skills :

• Bahasa Indonesia (Native Language)
• English (Oral and Written)
• Japan (Passive)