Department of Energy and Mechanical Engineering

Energy Conversion and Systems

The research group of energy conversion and systems in the department of mechanical engineering.

Hydrogen combustion
HVAC test house

Our mission is to educate game-changing energy and HVAC engineers and researchers, to support industries and communities in their decarbonization and green energy transition processes, to make world top class research and to actively communicate research findings to general public and focus on active publishing in high quality scientific journals.

Wind turbine

Our research group covers the energy value chain, from production by sustainable energy sources, to energy conversion, storage and end use. We have strong focus on energy markets and economics, and their modeling and optimization in dynamic environments.

Cold crystallization thermal heat storage
Cold crystallization thermal heat storage

Impact

Our research team is an internationally recognized front-runner in education and research on sustainable energy solutions and technologies. Our main driver is to aid society and industry in the transformation for a sustainable and carbon neutral future. Our focus is on high-level research that has also practical relevance. We accomplish this by educating future game-changers and with international and national cooperation in research projects. 

To meet the requirements from energy industry and society on energy specialists, our research group is also coordinating Aalto’s three master’s programs in energy: Aalto Advanced Energy Solutions (AAE), Innovative Sustainable Energy Engineering (ISEE of Nordic5Tech consortium) and Environomical Pathways for Sustainable Energy Systems (SELECT of EIT Innoenergy). In total, the intake to these is 120-160 students per year. We constantly develop new learning methods, such as Virtual Reality tools in remote locations site visits, and we are also developing hands-on learning experiences in our new Renewable Energy Learning laboratory, RELab. 

Infrastructure (EES)

The main infrastructure in Energy Conversion and Systems

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HVAC test room

Research topics

Diesel combustion

Advanced experimental flow and combustion diagnostics

Advanced experimental flow and combustion diagnostics

Department of Energy and Mechanical Engineering
H2 combustion simulations

High-performance CFD, simulation and modelling in energy applications

Our main focus is modelling energy applications with CFD

Department of Energy and Mechanical Engineering
Test dolls

Energy systems of buildings and communities

Modern energy systems research focuses on finding optimal solutions for ensuring a comfortable and healthy indoor environment while minimizing energy use. This is achieved both by utilizing computer simulation and optimization and by conducting experimental research on novel technologies.

Department of Energy and Mechanical Engineering

Energy storage systems and materials

In the energy storage team, we work with a large variety of different energy storage technologies to support the transition to renewable energy production.

Department of Energy and Mechanical Engineering

System modelling for societies and industry

We focus on large-scale energy systems, integrated assessment models, industrial energy systems and simulation and optimization techniques

Department of Energy and Mechanical Engineering
Wind turbines

Wind energy solutions

We aim to optimize wind turbine technologies, energy system and energy storage couplings, and siting strategies to increase the overall contribution of wind energy to the global energy mix.

Department of Energy and Mechanical Engineering

Hydrogen solutions

We focus on methanol synthesis and hydrogen production.

Department of Energy and Mechanical Engineering

Latest publications

Ammonia as a sustainable fuel

Qiang Cheng, Akram Muhammad, Ossi Kaario, Zeeshan Ahmad, Larmi Martti 2025 Renewable and Sustainable Energy Reviews

Machine learning-based assessment of thermal comfort for the elderly in warm environments : Combining the XGBoost algorithm and human body exergy analysis

Mengyuan He, Hong Liu, Shan Zhou, Yan Yao, Risto Kosonen, Yuxin Wu, Baizhan Li 2025 International Journal of Thermal Sciences

Optimizing Sorbent Flow and Parameters in Calcium Looping Project integrated with CaO reactivation

Dingyi Jiang, Shouzhuang Li, Mika Järvinen 2025 Energy proceedings

Numerical study on diesel ignited methane-hydrogen tri-fuel RCCI combustion

Wenjin Qin, Jingjing Shi, Qiang Cheng 2025 Fuel

Reducing district heating carbon dioxide emissions with data center waste heat – Region perspective

Seela Tervo, Sanna Syri, Pauli Hiltunen 2025 Renewable and Sustainable Energy Reviews

Gas evolution in self-extinguishing and insulative nanopolysaccharide-based hybrid foams

Roozbeh Abidnejad, Daria Robertson, Alexey Khakalo, Morteza Gholami Haghighi Fard, Ari Seppälä, Eva Pasquier, Blaise Tardy, Bruno Dufau Mattos, Orlando Rojas Gaona 2024 Carbohydrate Polymers

Analysis of machine learning models and data sources to forecast burst pressure of petroleum corroded pipelines : A comprehensive review

Afzal Ahmed Soomro, Ainul Akmar Mokhtar, Hilmi B Hussin, Najeebullah Lashari, Temidayo Lekan Oladosu, Syed Muslim Jameel, Muddasser Inayat 2024 Engineering Failure Analysis

Experimental Study on Engine Performance Fueled with Ammonia-Hydrogen Blend Ignited by Diesel Pilot

Muhammad Saad Akram, Qiang Cheng, Maryam Yeganeh, Ossi Kaario, Martti Larmi 2024 SAE Technical Papers

Superheated fuel sprays : A comparative study of flash boiling ammonia fuel sprays with methanol, ethanol, and gasoline for multi-hole fuel injection

Muhammad Saad Akram, Qiang Cheng, Ossi Kaario, Martti Larmi 2024 Case Studies in Thermal Engineering
More information on our research in the Aalto research portal.
Research portal

Members

Mika Ahlgren

Laboratory Technician
Atmadeep Bhattacharya

Atmadeep Bhattacharya

Academy Postdoctoral Researcher
T212 Department of Energy and Mechanical Engineering

Otto Blomstedt

Laboratorioinsinööri

Vadim Desyatnyk

Käyttöinsinööri

Olli Himanen

Professor of Practice

Muddasser Inayat

Postdoctoral Researcher

Mika Järvinen

Professori (Associate professor)
Shervin Karimkashi Arani

Shervin Karimkashi Arani

Academy Research Fellow
T212 Department of Energy and Mechanical Engineering

Ali Kasebi

Doctoral Researcher

Jari Kivivuori

Laboratoriomestari
T212 Department of Energy and Mechanical Engineering

Ilia Kravchenko

Postdoctoral Researcher

Jesse Pirhonen

Laboratorioinsinööri

Olli Ranta

Tutkimusinsinööri

Antti Sinkkonen

Tutkimusinsinööri

Yijie Su

Doctoral Researcher

Yang Xu

Visiting Doctoral Student

Roza Yazdani

Academy Postdoctoral Researcher

Maryam Yeganeh

Doctoral Researcher

Xiaolei Yuan

Postdoctoral Researcher
T212 Department of Energy and Mechanical Engineering
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