Aggrey Mwesigye

Dr. Aggrey Mwesigye

Ph.D., PEng.


Assistant Professor

Schulich School of Engineering, Department of Mechanical and Manufacturing Engineering

Contact information

Phone number

Office: 403 220-4778

For media enquiries, contact

Joe McFarland
Media Relations and Communications Specialist

Cell: +1.403.671.2710

Preferred method of communication


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Research partners



P.Eng, APEGA, 2021

Educational Background

PhD Mechanical Engineering, University of Pretoria, 2015

MSc Mechanical Engineering (Sustainable Energy), Royal Institute of Technology, 2009

BSc Mechanical Engineering, Makerere University, 2005



Dr. Aggrey Mwesigye is an Assistant Professor in the Department of Mechanical Engineering at the University of Calgary since June 2021. Prior to that, he was an Assistant Professor at the University of Minnesota Duluth from January 2020 – May 2021, a postdoctoral research fellow in sustainable energy systems at Ryerson University from January 2018 to December 2019, and a Senior Lecturer at the University of the Witwatersrand from December 2015 – December 2017. Dr. Mwesigye received his BSc Mechanical Engineering (summa cum laude) from Makerere University, an MSc in Mechanical Engineering from the Royal Institute of Technology, and a Ph.D. in Mechanical Engineering from the University of Pretoria. He has broad research interests in the modeling, design, and optimization of sustainable thermal energy systems. Current research focuses on concentrating solar thermal systems, alternative heating and cooling systems, heat transfer enhancement, thermodynamic optimization, and thermal energy storage.


Areas of Research

Design and Optimization of Sustainable Thermal Energy Systems

Research activities include

  • Thermal energy storage systems
  • Trigeneration and polygeneration systems
  • Building integrated renewable energy systems
  • 4E analysis of alternative energy systems
  • Concentrating solar thermal systems
  • Geothermal energy
Thermal Energy Storage

Research activities include

  • Design and optimization of thermal energy storage systems for concentrating solar thermal systems
  • Phase change material for space heating applications
  • Packed bed thermal energy storage systems
  • Energy storage for residential space heating 
  • Pumped/compressed thermal energy storage
Alternative Space Heating and Cooling Systems

Research activities include

  • Thermodynamic analysis and optimization of ejector refrigeration
  • Ground source heat pump systems
  • Solar thermal heating and cooling
  • Direct expansion heat pump systems
Solar Thermal Energy Systems

Research activities include

  • Concentrating solar thermal systems
  • Solar thermal systems for space heating and cooling
  • Solar thermal cracking of natural gas
  • Solar process heat

Participation in university strategic initiatives


Course number Course title Semester
ENME 341 Fluid Mechanics Winter 2022, Winter 2023
ENME485 Mechanical Engineering Thermodynamics Fall 2022


  • 2018 Highly Cited Review Paper in Applied Energy, Applied Energy, Elsevier. 2020
  • Best Paper Award, 5th International Conference on Applied Energy (ICAE2013), Applied Energy, Elsevier. 2013
  • Institutional Researcher in Training of the Year, Senate Committee for Research, and Innovation, Tshwane University of Technology. 2016