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Turbine Number Eight | 8 comments (8 topical, editorial)

Re: Turbine Number Eight (3.00 / 0) (#7)
by joestue on Thu Feb 21st, 2008 at 04:44:15 PM MST
(User Info)

Could you be specific as to what the efficiency means?

10% is rather high for low pressure systems, when taken as heat input to shaft output.
I'm also interested in the running conditions, ie. KPA, temp, condenser vacuum etc.

I've been trying for the past year to design solar steam..... but not to change the subject. if you can actually get 10% that's great.

[ Parent ]

Re: Turbine Number Eight (3.00 / 0) (#8)
by WXYZCIENCE on Sat Feb 23rd, 2008 at 01:35:27 PM MST
(User Info)

joestue, steam is easy to generate and water is non toxic. Efficiency of steam in a single stage unit is related to the viscosity of the working fluid. I base my calculations on water entering the boiler at 190 degrees F. and steam leaving at around 350 degrees but until I actually test the unit these are not firm. You are correct, if I can achieve 10% it will be great.

Solar working fluids that are non wetting such a toluene have been successfully used for very high efficiency in a single stage turbines. I don't see myself wanting to go that direction.
Joseph.

[ Parent ]

Turbine Number Eight | 8 comments (8 topical, 0 editorial)

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