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I once heard a very smart person say: "If the only
defense you can offer for your design is to say that it meets the code,
you might as well say that if you did any worse, it would be illegal".
Here's a little piece from Power magazine that sums up what they
don't teach in Engineering
School.
Proof that engineers and
scientists will never make as much money as business executives.
Professionalism for the Engineer.
| NATURAL GAS
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#2 OIL |
#6 OIL |
|
1 MMBtu = 970 ft3 |
1 MMBtu = 7.21 gal.
|
1 MMBtu = 6.68 gal
|
|
1 ft3 = 1030 Btu |
1 gal = 138690 Btu
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1 gal = 149690 Btu
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mcf x 1.031 = dth
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| 1 dth = 1,000,000 Btu
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PROPANE |
ELECTRICITY
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| 1 therm = 100,000 Btu
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1 MMBtu = 10.95 gal |
1 MMBtu = 293.083 kwh
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| Example: $/dth x 1.031 = $/mcf
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1 gal = 91333 Btu
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1 kwh = 3412 Btu
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| Example: 16000dth/1.031=15518mcf
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$1.00 #6 oil ~ $6.87 NG |
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Emergency generators: ~2 HP/kW,
~1HP/10,000 BTU; for sizing gas line, use KWx12= xxx cfh. A nat
gas Kohler 50kW unit has a 105HP engine and burns 744 cfh at 100% load.
Useful links, papers, information, etc.
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