Dr Jean Gerard de la Bat

Key Technology Specialist
Ph.D. (Mech. Eng.), B.Eng.

Jean Gerard joined HySA Systems in 2019 as a Key Technology Specialist. Having previously completed his B.Eng. and Ph.D. in Thermofluids Engineering at Stellenbosch University, he brings more than five years’ experience in Combined Heat and Power (CHP) system development to the HySA Systems team. Jean Gerard has a keen research interest in advanced and renewable power generation cycles including but not limited to Stirling, low-temperature hydrogen fuel cell and supercritical CO2 Brayton cycles. His responsibilities include the thermal modelling, energy management and subsystem integration and testing of various Fuel Cell Electric Vehicle Prototypes. At present, Jean Gerard serves as Lead Technical Design Engineer on the development of a prototype 30/40 kWe hydrogen fuel cell range extender, and as Principle Thermal Engineer on the development of a 1 kWe fuel cell power module for the Council of Scientific and Industrial Research (CSIR) Long Endurance Modular UAV (LEMU). 


De la Bat B.J.G., Harms T.M., Dobson R.T. and Bell A.J. (2019). Derivation and numerical case study of a one-dimensional, compressible flow model of a novel free-piston Stirling engine, Journal of Energy, DOI: https://doi.org/10.1016/j.energy.2020.117404

De la Bat B.J.G., Dobson R.T., Harms T.M. and Bell A.J. (2019). Simulation, manufacture and experimental validation of a novel single-acting free-piston Stirling engine electric generator, Journal of Applied Energy, DOI: https://doi.org/10.1016/j.apenergy.2020.114585

De la Bat B.J.G., Dobson R.T. (2018). Theoretical simulation, design and manufacture, and experimental evaluation of a free piston Stirling engine electric generator, 2018 International Energy Conversion Engineering Conference, Cincinnati, U.S.A., DOI: https://doi.org/10.2514/6.2018-4502

De la Bat B.J.G, Dobson R.T. (2016). Modelling, simulation and design of a testable 200 We dual generator free-piston Stirling engine, 17th International Stirling Engine Conference, pp. 228-243, Newcastle-upon-Tyne, U.K.


Alumni member of the Solar Thermal Energy Research Group (STERG) at Stellenbosch University

Member of the American Institute of Aeronautics and Astronautics (AIAA), member number: 920022



  • Telephone: 021 959
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