Imperial College London


Faculty of EngineeringDepartment of Chemical Engineering

Research Associate







ACE ExtensionSouth Kensington Campus





Dr. Paul Sapin received his MEng degree in 2010 in Mechanical/Thermal Engineering from ISAE-ENSMA, a Mechanical and Aeronautical Engineering School located in Poitiers, France.  He completed his Ph.D. in Fluid Mechanics and Heat Transfer at National Polytechnic Institute of Toulouse in 2014. The topic of his Ph.D. thesis was convective boiling heat transfer in porous media.

As a Post-Doctoral Research Associate in the Clean Energy Processes (CEP) Laboratory, his research focuses on the use of reciprocating-piston devices in energy-storage (e.g. compressed air, liquid air and pumped thermal electricity storage) and waste-heat recovery (e.g. organic Rankine cycle) technologies. Through the use of joint experimental and numerical approaches, his research aims (i) at understanding and predicting loss mechanisms in such engines and (ii) at developing design tools and innovations to mitigate these losses. 



Olympios AV, Pantaleo AM, Sapin P, et al., 2020, On the value of combined heat and power (CHP) systems and heat pumps in centralised and distributed heating systems: Lessons from multi-fidelity modelling approaches, Applied Energy, Vol:274, ISSN:0306-2619, Pages:1-19

Nemati H, Moghimi MA, Sapin P, et al., 2020, Shape optimisation of air-cooled finned-tube heat exchangers, International Journal of Thermal Sciences, Vol:150, ISSN:1290-0729, Pages:1-14

Kadivar MR, Moghimi MA, Sapin P, et al., 2019, Annulus eccentricity optimisation of a phase-change material (PCM) horizontal double-pipe thermal energy store, Journal of Energy Storage, Vol:26, ISSN:2352-152X


Olympios A, Hoisenpoori P, Mersch M, et al., 2020, Optimal design of low-temperature heat-pumping technologies and implications to the whole energy system, The 33rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems.

Sapin P, Simpson M, Olympios A, et al., Cost-benefit analysis of reversible reciprocating-piston engines with adjustable volume ratio in pumped thermal electricity storage, 33rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2020), ECOS

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