[Stoves] specific heat

Kevin Chisholm kchisholm at ca.inter.net
Sat Aug 4 10:41:21 EDT 2007


Dear Ken

The beauty of the Imperial System is its simplicity. :-)

The Specific Heat of water is 1 BTU per pound. 1 BTU is the heat energy 
required to raise the temperature of 1 pound of water by 1 degree 
Fahrenheit.

Q = m*Cp * (T2-T1)

Q is the heat energy required in BTU
m is the weight of water in pounds
Cp is the Specific Heat at constant pressure
T2 is the "final temperature" in degrees F
T1 is the "Starting temperature" in degrees F

Once the water reaches boiling temperature, 212 F at Sea Level, the 
water turns to vapor. Each pound of water evaporated will take away 
about 970 BTU per pound of water evaporated.

Best wishes,

Kevin

ksmith46 at frontiernet.net wrote:
> Does anuone know where I might be able to find some calculations on  
> how many btu it takes to bring water up to a temperature. I use the  
> 1lb to 1 degree temperature and when I calculate it using specific  
> heat of water which is 4.184 Joules per gram and convert it to BTU, I  
> come up with different figures.
> 
> Ken Smith
> 
> 
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