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Geothermal

Geothermal power generation is traditionally thought to require temperatures hot enough to create steam to drive a turbine in a Rankine cycle. Unfortunately, this limits its use to regions where subterranean heat is hot enough to cause a change of state. With the MTP technology we can use much lower source temperatures, thereby opening up vast areas of currently untapped thermal energy.

Because we use dry air or gaseous nitrogen as the working fluid, our engine can operate at any point on the thermometer, as long as it has a temperature differential of 20ºC or more. The greater the differential, of course, the higher the net conversion efficiency. The MTP Combined Cycle technology can operate at even lower source temperatures.

Of particular importance is the ability of our engine to operate very efficiently in areas where winter air temperatures, for use as the heat sink, are consistently well below freezing, providing higher conversion efficiencies.























































 

This recent (2009) geothermal survey shows temperature readings at the 3500m depth across Canada.

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