Since 1967

Unico, Inc.
3725 Nicholson Rd.
P. O. Box 0505
Franksville, WI
53126-0505
262.886.5678
262.504.7396 fax
oilgas@unicous.com
unicous.com

Copyright © 2007
Unico, Inc.
All rights reserved.

All trade designations
are provided without
reference to the rights
of their respective
owners.

Fuel Energy Analyzer
for Comparing Engine Energy Efficiency

	Item	Liquid Fuels			Gaseous Fuels
		Regular Gasoline	Diesel Oil	Liquid Propane	Natural Gas	Propane Gas
	Fuel Density (kg/m3)
	lb/in3	0.02656	0.03017	0.01843	0.00003	0.00007
	lb/gal or lb/scf	6.13496	6.96965	4.25691	0.04477	0.11701
	Specific Gravity (° API or air)	61.0	38.0	146.0	0.585	1.530
	Energy Content (J/g)
	kWh/lb	5.85771	5.65615	6.24822	6.73951	6.24822
	kWh/gal or kWh/scf	35.9368	39.4214	26.5981	0.30172	0.73111
	BTU/lb	19992	19304	21325	23002	21325
	BTU/gal or BTU/scf	122651	134544	90779	1030	2495
	Fuel
	Cost ($/gal or $/Mcf)
	Consumption (gal/kWh or     scf/kWh)
	Energy
	Cost ($/kWh)	0.220	0.180	0.176	0.069	0.174
	Consumption (BTU/kWh)	12265	12109	11801	11842	11728
	Efficiency (%)	27.8	28.2	28.9	28.8	29.1