Recent content by burnit

I have read that some Scientists do not believe that the emissions from industry, power stations, transportation etc is the ultimate cause for a global warming scenario & they can't put there finger on another cause. Of course science is the study of what we don't know rather than what we do...

Is it possible to connect two alternators together to double the output voltage, is there a way to do this? Eg: Say two 12v Alternators connected to get 24v etc. Thanks

Thanks for the comments, How are generators--alternators rated? Are they rated per hour, say a 50kW generator as mentioned is this rated at a 50kWh generator. It seems if we apply a 50kW load to it for 1hr it has produced a lot more than 50kW because it is drawing 50kW continuously...

Hi All, For a small steam turbine to generate power at a rate of 50 kW/h. How many BTU's of heat required per hour, also water consumption per hour, how do you work this out?

After tossing & turning all night due to the lack of brain cells i'll give it another go & look at it in another way? Heat required to raise the temperature of the example copper wire: Mass of the example wire = .045 kg Specific Heat Capacity of Copper = .39 KJ/kg K Final Temp = 100 C...

I Guess as in heating the air example it was heating a 1m^3 area, so the above calculation is also heating a 1m^3 block of Copper. My wire has a smaller area, how do i calculate the area of my wire example into this equation?

Just need to make sure i have this correct because i just did the calculation & it doesn't seem right? Ok, From the figures i found on the Net: Specific Heat of Copper is 385 J/kg K, Density of Copper is 8940 kg/m^3 100*60/385/8940/m^3= .00174 deg C Is this correct?

Thanks Again Russ, Just did a search & found an excellent chart of specific heat values, i wasn't sure how to go about this with different materials etc until now. Learn something everyday on this Forum--Excellent! Thank You Again

Not sure if AC or DC makes a difference but it is AC that i would like to calculate for.

Yes, i get what your saying with inefficiency. I have another question with Watts Vs Heat in copper wire that i would like to be able to calculate & put some numbers to if someone could help me again with the equations & also an example. Eg, I have a length of stranded copper wire...

Thanks Russ, So we assume 100% efficiency turning energy to heat with resistance heating elements etc.

Sorry, i need to correct something, i should have said with 100 Watts being consumed from the Power supply & not with 100 Watts of heat in the container.

Hi All, Could someone please help me with the calculations & an example of Watts consumed to Air Temperature rise in a given area: Eg: If we have a closed sealed container with no outside influences of area say 1 cubic meter, well insulated with an electrical heat source of the best...

Could you explain more about the drive please, you mention class B drive? Thanks

Thanks to everybody that has helped with this, i now have a better understanding of the workings of this particular setup. I will note the use of the bleed resistors as suggested. Thanks Again