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Using a standard conversion factor:
100 gallons of liquid propane converts to 378.5 liters of liquid
propane
The compression ratio of vaporous
propane to liquid propane is: 270:1.
Therefore
378.5 liters of liquid propane (x 270) will expand to 102195.0 liters
when vaporized. 1.0 ml = 1.0 cm3 and 1,000,000 cm3
= 1 m3.
Therefore,
1,000,000 ml = 1 m3 also 1,000,000 ml = 1000 liters.
Therefore,
1000 liters = 1 m3.
Converting
total liters to cubic meters
102195.0 liters / 1000 l/ m3
= 102.2 m3 vaporous propane
= 100 gallons liquid propane originally. A ratio of 1:1
Finally, calculating
the “run time". for a 100 gallon tank with a generator running
at 75% load consuming 1.5 m3/hr of propane.
Restated in formula
format.
A 100 gallon tank (containing 102.2 m3 vaporous propane),
burned at 1.5 m3/hr. (rated 75% capacity) = 68 hrs. or
2.8 days
If you use the
80% rule then that converts to 80 % of 2.8 or 2.27 days or 54.48
hours.
This can be restated
in a formula as follows:
FORMULA ANSWER:
|
Tank Size in
Gallons
X
.81756
/
Fuel Consumption in
m3/hr =
generator
running hours on this tank.
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ENGLISH LANGUAGE DESCRIPTION
OF THE FORMULA:
Take propane
Tank Size (in Gallons) and
multiply times
.81756, this number is
divided by
Fuel Consumption (in
cubic meters per hour)
Equals hours of running time in
hours for this tank. If you require days, divide by 24.
Examples:
For a
100 gallon tank
burned at a rate of
1.5
m3/hr,
the
estimated
run time
would equal
2.27 days
For a
150 gallon
tank
burned
at a rate of
1.5
m3/hr,
the
estimated
run time
would equal
3.41 days
For a
200 gallon tank
burned
at a rate of
1.5
m3/hr,
the
estimated
run time
would equal
4.54 days
For a
100 gallon tank
burned
at
a rate of
1.1
m3/hr,
the
estimated
run time
would equal
3.10 days
For a
100 gallon tank
burned
at
a
rate of
1.3
m3/hr,
the
estimated
run time
would equal
2.62 days
For a
100 gallon tank
burned at
a rate of
1.9
m3/hr,
the
estimated
run time
would equal
1.79 days
For a
200 gallon tank
burned at
a rate
of
1.7
m3/hr,
the
estimated
run time
would equal
4.01 days
GeneratorJoe® will
create a calculator for this formula as soon as we have time.
Happy Calculating!
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Researched by
Dave Cornelius, former science teacher, Cleveland, Ohio
A GeneratorJoe® Star
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