Heat to power engines
Modules optimized for high-temperature recovery
A flexible and modular high-temperature cogeneration solution that is easily installed on industrial sites.
It uses only air as a working fluid and operates at low pressure, making it safe and simple to operate.
Designed to adapt to a wide range of energy needs from hot flue gases (>600°C), the H2P system is modular, with available power outputs from 2.5 kWe to 20 kWe by combining elementary units (H2P engine + heat exchanger).
The H2P Module: An innovative engine for high-temperature recovery and producing hot air and electricity
An original technology for recovering waste heat > 600°C
An original open-cycle hot air thermal engine
Operating without complex fluids, solely with filtered air in each cycle, this external heat input engine combines:
• Low pressure for safe operation
• No ICPE constraints
• Simplicity of maintenance and installation
Production of electricity AND hot air > 300°C in cogeneration via a secondary heat exchanger
An innovative rotary valve system
The engine operates on a 4-stroke thermodynamic cycle, controlled by an original intake/exhaust system ensuring:
• Compression, heating, and expansion in a single cylinder
• Clean, high-temperature hot air available at the outlet for gas burner preheating, drying, and heating
A modular and scalable architecture
• Standard 2.5 kWe modules, connectable up to 20 kWe
• Compact design, ideal for integration into production lines or containers
Ability to produce hot air or compressed air in cogeneration according to industrial needs
The H2P Module: Description of the original cycle
- 1
Phase 1: Intake
The intake opens, the piston descends.
Ambient air enters the working chamber - 2
Phase 2: Compression
The piston rises, compressing the air in the working chamber.
The heat exchanger inlet opens, allowing the entry of air compressed by the piston. - 3
Phase 3: Expansion
Once in the heat exchanger, the air previously compressed by the piston heats further and increases in pressure by drawing calories from the waste heat source.
The inlet to the working chamber opens again, and the heated compressed air expands by pushing the piston, thereby producing torque on the crankshaft. The mechanical coupling of the engine to an alternator enables electricity production. - 4
Phase 4: Exhaust
The piston rises, the exhaust opens, allowing the evacuation of clean hot air (<300°C).
This hot air can then be used directly or reheated with the remaining calories in the flue gases via a second heat exchanger.
Cogeneration Applications
PRIMARY RECOVERY
COGENERATION
