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06-10-2008, 06:08 PM #22
Re: Co2 vs Steam turbine power generator
Hello Taz,
Sorry for so long'
So many figures
Relying on ruler and Wikipedia phase diagram Co2.
Co2 pressure increases with temperature rise.
Co2 is Refrigerant R-744.
Absorption fridge uses a boiler in place of a compressor.
Co2 is contained in a turbine, this replacing the absorption fridge boiler.
As liquid Co2 receives heat pressure is developed and the liquid turns to vapour.
Absorption fridge returns vapour to liquid by use of a pressure restrictor at choke point.
A turbine acheives the same purpose by asorbing the pressure enrgy. (as done in Helium cooling)
Cool Co2 under pressure is liquid, this ocurring second third of rotation.
At third stage ifs rotation brings dramatic degrees in pressure creating dry ice of remaing Co2 liquid, having less than 5 bar pressure.
Web search> Co2 is liquid at 73 bar and 31.2 degrees Celsisus, Co2 liuid forms dry ice -93 degrees Celsius at 3 bar pressure.
University of America> 80% efficient hydro turbine 9 bar pressure 1 litre per second 720 watts doubling with flow.
Air temperature of above 5 degrees Celsisus obtains sufficent bar pressure for operation.
The turbine footrint is calculated on wattage or megawattage output.
A 1 litre turbine rotating sixty times per minute, 9 bar pressure is 720 watts, 1000 RPM 720 Kw.
Spent six years making working models, but have to rely upon the Web to explain why it works, rather than just saying stick a turbine in a gas fridge.
Can post schematics etc, if walked through it.
Cheers
Peter
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