Posted by admin on Thursday, December 16, 2010 · Leave a Comment
I want to compare the amount of time it would take for a regular (20 lb) propane tank (filled with propane) to burn versus the same tank filled with natural gas. I think the average propane cylinder will only allow a max of 175 psi. I figured the average oven will burn at 20,000 BTU per hour. Based on those specifications, how long would both the propane and the natural gas last?
I can provide part of the answer for you...
A 20lb propane cylinder contains roughly 440,000 btu's of energy. With a 20,000 btu load you have 22 hours of burn time.
Propane cylinders are equipped with a 375psi pressure relief valve to protect the cylinder from overpressure. An average 20lb cylinder has a water capacity of 48lbs.That would be 5.75 gallons which is roughly .75 cubic feet. Natural gas has a little over 1000 btu's in a cubic foot.Natural gas could theoretically be compressed to 375 psi in that cylinder.
I have no clue how many cubic feet that would be or how to calculate it. Sorry!
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