"Protoman" <Protoman2050@gmail.com> wrote in message
news:1140167250.979839.44850@g47g2000cwa.googlegroups.com...
Helmut Wabnig wrote:
On 16 Feb 2006 17:49:43 -0800, "Protoman" <Protoman2050@gmail.com>
wrote:
How many watts would I get from 12 gm. of radium? Is there an equation
for this? I'm designing a simple nuclear power supply for a uni
science project. Some help here? Thanks!!!!
1 gramm radium produces 100 cal / h continuously.
Decrease only 1% in 25 years.
For comparison:
1 gramm coal produce 8000 cal, but only once :-)
w.
And what is that 1200cal/hr in watts? How much would I need for 20kw?
1 cal/sec is about 4 watts
so 1200cal/hr is about 1.3W
You would need about 15Kg I believe.
Efficiency?
.
