The MTP engine uses an advanced thermal energy recovery and transfer process that converts the transfer of heat between a higher temperature heat source and a lower temperature heat sink, much the same as most thermal generation plants work. The key advantage of our technology is its ability to harness relatively narrow temperature differentials and also to operate with temperature ranges below those required for even organic Rankine cycle systems. This opens up a vast potential for new green and clean energy.

The process uses pre-pressurized thermal transfer heat exchanger vessels using a gas (dry air or hydrogen) as the working fluid to transfer the heat through the system via a pneumatic piston assembly. Unlike Stirling engines, the piston assembly is outside the gas expansion chamber, and the heat exchange takes place inside the chambers. This allows for much greater heat transfer efficiency and more versatility in piston design. The parasitic system losses are substantially reduced compared to Stirling engines because every stroke is a power stroke with the MTP engine. This is a key factor at low temperature differentials where Stirling engines have negligible net output and are therefore not practical as a generation method.

Our research observations to date have indicated that our engine configuration will also be highly efficient at higher temperature differentials in which Rankine cycle engines are currently employed.

With the design advantages of our engine, many locales around the globe will be able to generate clean and economical electricity, and in many cases replace current fossil fuel generation.

Technology Schematic

(Not to Scale)