Is there a way to calculate gas flow rate from output PSI?

In summary, there is no general formula for calculating gas flow rate based on PSI. The relationship between PSI and BTU/hr is not consistent and other factors such as gas type, tank size, and burner efficiency must also be taken into account. Without this information, it is not possible to accurately calculate the gas flow rate.
  • #1
Xtensity
104
0
I've noticed that certain propane torches will have a seemingly linear relationship between their PSI and BTU/hr. IE, 18 PSI -> 220,000 BTU/hr. From this a person could calculate how much gas is being burned per sec/minute/hr.

So, is there a general relationship/formula that I can use to calculate gas flow rate based off the PSI? Like if I have a propane tank releasing propane at a pressure of 25 PSI, how could I calculate how much weight in propane is being burned per second (without knowing the ratios in the first paragraph)?
 
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  • #2
Xtensity said:
So, is there a general relationship/formula that I can use to calculate gas flow rate based off the PSI?

No. You're missing quite a number of parameters.
 

1. What is the formula for calculating gas flow rate from output PSI?

The formula for calculating gas flow rate from output PSI is flow rate (in cubic feet per minute) = (output PSI x tank volume) / (time in seconds x 14.7).

2. How accurate is the calculation of gas flow rate from output PSI?

The accuracy of the calculation depends on the accuracy of the input values, such as the output PSI and tank volume, as well as the precision of the calculation method used. It is important to use precise measurements and follow the correct formula for the most accurate result.

3. Can the calculation of gas flow rate from output PSI be applied to all types of gases?

The calculation can be applied to most gases, as long as the input values are in the appropriate units. However, it is important to note that different gases may have different flow characteristics and may require different equations for accurate calculations.

4. Is there a simpler way to calculate gas flow rate from output PSI?

There may be simpler methods or equations available for specific gases or situations. It is best to consult with a specialist or reference materials for the most accurate and efficient method for a particular gas or application.

5. How can I measure the output PSI and tank volume accurately for the calculation?

There are various tools and techniques that can be used to measure output PSI and tank volume accurately. These may include pressure gauges, flow meters, and calibrated containers. It is important to use proper equipment and follow standard measurement procedures for accurate results.

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