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DaS Energy

Low Heat Power Generation

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Turbine power commences at -30*Celsius heat source, Temperature below that not allow enough cooling to deliver bar pressure for shaft rotation capable of standard power generation.

Heat temperature below +31*Celsius keeps pressure force below 70 bar to the shaft.

Operation between +30*Celsius and +70*Celsius delivers 9,000 bar force to the shaft.

Use of a 82% efficient turbine delivers 720 Watts at 9 bar pressure on litre per second.


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Back in the late 1970's when I was working on an MS, ocean thermal energy conversion (OTEC) was the rage. There was a guy who went around to conferences with a machine. He dumped ice into one container and poured coffee or hot water into the other. It was a small organic Rankine cycle generating unit and would light up a bulb. He got funding and hopes were high for a full-scale offshore plant. That never happened. The idea *will* work. The demonstration model would light up a bulb. Of course, the ice and hot water didn't last long and the ocean thermal difference is nowhere near that large, but the concept is sound. The problem is cost-effectiveness. Such a system (think Carnot efficiency) is so inefficient and costs so much per watt to build, that it isn't worth the investment. Many more practical and less expensive devices are readily available. Don't be discouraged, just think farther outside the box and keep at it!

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