THE MARNOCH THERMAL CONVERSION PROCESS 

The Marnoch engine is an advanced thermal 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, which opens up a vast potential for new green energy. Temperature differences as low as 20⁰C can be utilized.

The process uses pre-pressurized thermal transfer vessels using a gas (dry air) as the working fluid, to transfer the heat through the system via a pneumatic piston assembly. Unlike Stirling cycle engines, the piston assembly is outside the gas expansion chamber, and the heat exchangers are 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 Stirlings because every stroke is a power stroke with our technology. This is a key factor at low temperature differences where Stirling engines have negligible net output and are therefore not practical as a generation method.

Prototype observations and subsequent modeling have also indicated that our engine configuration will also be highly efficient at higher temperature differentials in which working fluid change of state methods are currently used. Again, the net output will be greater as a percentage of gross conversion efficiency (Carnot equations) due to design simplicity.

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 costly fossil fuel generation facilities.