Sterling Engine

Based on work performed at NASA we have enhanced our stirling engine and designed an acoustic 200kWe prototype: The AS (Acoustic Stirling) Engine.

Efficient, Reliable, and Sustainable Power with Stirling Engine Technology

The Stirling engine is a highly efficient and versatile system for generating electricity, offering a clean and quiet alternative to conventional combustion engines. Powered by external heat sources — such as solar energy, biomass, geothermal heat, or waste heat — the Stirling engine converts thermal energy into mechanical work, which is then used to produce electricity.

Key Advantages of the Stirling Engine:

  • Exceptional Efficiency: With a closed-cycle design and regenerative heat exchange, Stirling engines achieve higher thermal efficiency compared to traditional internal combustion engines.

  • Fuel Flexibility: Operates on virtually any heat source — solar, natural gas, biogas, or industrial waste heat — making it one of the most adaptable power generation technologies available.

  • Low Emissions & Eco-Friendly: Since combustion occurs externally and can use clean or renewable fuels, the Stirling engine produces minimal pollutants and supports sustainable energy goals.

  • Quiet Operation: The smooth, external combustion process allows for near-silent performance, making it ideal for residential, commercial, and remote applications.

  • Long Lifespan & Low Maintenance: With fewer moving parts and sealed operation, Stirling engines experience less wear and require minimal maintenance, ensuring long-term reliability.

  • Scalable & Versatile: Suitable for small-scale off-grid systems or as part of hybrid energy solutions, Stirling engines can efficiently generate power in a wide range of environments.

By harnessing the Stirling engine’s unique ability to convert almost any form of heat into clean electricity, you gain a dependable and eco-conscious energy solution that enhances efficiency while reducing environmental impact.

Acoustic Stirling Engine:

Power output up to 250 kW

Inlet pressure up to 40 bar(a)/580 psi

Inlet temperature molten salt up to 650 °C

MS Outlet Temperature >150oC

Water inlet for cooling

Dimension

Length 1.5 m

Width 1.5 m

Height 2 m 

Operation steps

A: Displacer Piston in position zero; Power Piston in position zero.

B: Displacer move down and press air on Power Piston moving it down

C: Hot air moved away from Displacer Top, Cold Air are pressed up