Gas Volume Calc: Find Out Rate of LPG Cylinder Reduction

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SUMMARY

The discussion focuses on calculating the rate of gas consumption from an LPG cylinder, emphasizing the need to measure the mass of gas used over time. Users suggest practical methods such as weighing the cylinder at regular intervals and considering the constant delivery rate of gas due to the regulator. It is established that using multiple burners will increase gas consumption proportionally, and energy consumption can be estimated using the burner’s specifications and the energy content of LPG at 50MJ/kg.

PREREQUISITES
  • Understanding of LPG gas properties and usage
  • Basic knowledge of mass and time measurement techniques
  • Familiarity with gas appliance specifications
  • Knowledge of energy content calculations for fuels
NEXT STEPS
  • Research methods for accurately weighing LPG cylinders over time
  • Learn about the energy consumption ratings of various gas burners
  • Explore the principles of gas regulators and their impact on consumption rates
  • Investigate formulas for calculating gas usage based on mass and time
USEFUL FOR

Individuals involved in gas appliance usage, such as homeowners, gas technicians, and energy efficiency experts, will benefit from this discussion to optimize LPG consumption and understand usage rates.

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Hi can anyone please suggest me how to find out the rate at which gas in LPG cylinder reduce.Initially before use gas cylinder will be full as the consumer start using the gas it starts reducing how do i calculate how much is left out and the rate at which it is getting reduced ,And also if a single burner is on gas starts reducing at a rate at the same time if two burners are simultaneously On gas starts reducing at a different rate.Can anyone kindly suggest me how do i find this out.Is there any formulas for finding this out .Please help me .
 
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Welcome to PF;
... take the mass of gas purchased and divide by the time to use all the gas.
You can also put the bottle on some scales and take a reading every 5mins or whatever. I suspect these would be better than calculations.

How you'd model it will depend on what you need to know for, but the rate that gas is delivered to the appliance is pretty much constant for the appliance (due to regulator).
http://www.elgas.co.nz/resources/elgas-blog/121-home-lpg-gas-regulators-and-fittings
... so 2 burners would use the LPG twice as fast etc.
 
Last edited:
... maybe read off the energy consumption off the label on the burner, and use 50MJ/kg for the LPG use?
 

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