# Recent content by sharp81

1. ### Compressed air

http://wireless.industrial-networking.com/articles/articledisplay.asp?id=1357 This link tells about the ABB´s idea of wireless power .... I was checking out if the energy storage method could be feasible as the device I am considering powering up already has compressed air in it
2. ### Compressed air

What other alternatives do you suggest in an environment where I would use compressed air from my electropneumatic actuator to actually drive it. I was looking at ABB´s magnetic coupling method but I think that's for very low power. Probabaly we would need a energy of about 500 mW. Can you give...
3. ### Compressed air

Can you tell me if any univ or industry is working on some similar product
4. ### Compressed air

I found in one of the books which says , "At a delivery pressure of 6 bar, the power required is 2.08 kW per 1 l/s of compressed air" I have a doubt if we can actually consider this as a reversible process. ie is it same as 1 l/s of compressed air is required for producing an electrical power...
5. ### Compressed air

I have a question about dh(theoritical) ...what is with the values 16.8 ln(p) - 21.8 I dont understand how you got those values .... Also is the mass flow rate the rate of pressed air from the compressor ...
6. ### Compressed air

can you direct me to a good literature on the same. I think my knowledge on enthalpy and entropy needs to be improved. And is there a direct conversion to find the flow rate of the pressed air(in cfm) that is converted to flowing electric power of about 1 W when the efficiency of the whole...
7. ### Compressed air

I am thinking of a motor or a generator to be driven by the compressed air which in turn produced electricity
8. ### Compressed air

what i am trying to do is to generate electric power from compressed air. So I would like to find out the amount of compressed air required for producing about 1 W of power.
9. ### Compressed air

Hello, I am interested in finding out the electric power output from a compressed air system. i see that there is a formula for calc. it with the amount of compressed air required to generate about 1 W with a pressure of 1 bar is given by Compressed air(cu.mm/s) = (1000 N-mm/s) / (0.1...
10. ### Image visibility

plzzz some one help me with some sort of suggestions.please, i am desperate for help
11. ### Image visibility

still no ones responded to my cry .
12. ### Image visibility

will someone be able to help me out.i guess i am the only one whose questions goes unnoticed all the time.
13. ### Image visibility

i have this projector setup with a light source having about 500 lumens as its light output.I know the distance to the fresnel lens which will be at the focal distance so that parallel light goes through the lens. I want to know how much of this light would be falling on the fresnel lens. I...
14. ### Information on photoluminescence?

i am considering a contrast ratio of abt 20:1.i need some good material on this topic as i am very new to these.
15. ### Information on photoluminescence?

Can anyone tell me any good websites which have information on photoluminescence? Also, i have an lcd projector with a light source which has about 500 lumens as the light intensity.If i need to project an image of an chess board on the lcd onto the screen with the best contrast say for a 32...