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Chapter 19
Energy Comparisons
Periodically an opportunity will occur to convert from one energy source to another. To
efficiently offer correct computations, you will be required to use proper British Thermal
Units (BTU). The chart below displays figures for that purpose.
ENERGY BTU
CONTENT |
|
Common Fuel |
Per Gallon |
Per Pound |
Per Cubic Foot |
|
| Gasoline |
114,000 |
18,500 |
- |
| Diesel |
137,000 |
19,680 |
- |
| Range Heat Oil |
134,700 |
19,810 |
- |
| Butane |
102,600 |
21,200 |
3,260 |
| Propane |
91,800 |
21,600 |
2,530 |
| *Natural Gas |
- |
11,000 |
1,030 |
| Illinois Coal |
- |
14,000 |
- |
| **Electricity |
3,416 |
|
|
|
| * 100,000 BTU per Therm ** BTU
per Kilowatt Hour |
Multiply current energy cost by the factor. (Factor represents amount of units to equal
one-million BTU.) The end result is each energy source being converted into one-million
BTU. Compare each for its value.
| FUEL COST COMPARISON |
| (One Million BTU
Cost) |
| Propane |
13.6 X $.00 Per Gallon = Cost (Figuring 80%
Efficiency) |
| Example: |
13.6 X |
|
= |
Per Million BTU |
|
|
|
|
|
#2 Burner Fuel |
9.04 X $.00 Per Gallon = Cost (Figuring 80%
Efficiency) |
| Example: |
9.04 X |
|
= |
Per Million BTU |
|
|
|
|
|
| Natural Gas |
12.5 X $.00 Per Therm = Cost (Figuring 80%
Efficiency) |
| Example: |
12.5 X |
|
= |
Per Million BTU |
|
|
|
|
|
| Electricity |
292.7 X $.00 Per Kilowatt Hour = Cost (Figuring
100% Efficiency) |
| Example: |
292.7 X |
|
= |
Per Million BTU |
|
|
|
|
|
| The above figures are based upon the following: |
| |
|
| Propane |
91,800 BTU per Gallon |
| #2 Burner Fuel |
138,200 BTU per Gallon |
| Natural Gas |
100,000 BTU per Therm |
| Electricity |
3,416 BTU per KWH |
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Revised March, 1999
© 1998-2009 GROWMARK, Inc. All
rights reserved.
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