MIL-HDBK-1191
TABLE 7-3
ENERGY CONVERSION FACTORS
(1)
FUEL TYPE
CONVERSION FACTORS
ANTHRACITE COAL
33 MJ/kg
(28.4 MILLION BTU/SHORT TON)
BITUMINOUS COAL
28.6 MJ/kg
(24.6 MILLION BTU/SHORT TON)
#2 DISTILLATE FUEL OIL
38.7 MJ/L
(138,700 BTU/GALLON)
RESIDUAL FUEL OIL
41.7 MJ/L
(149,700 BTU/GALLON)
KEROSENE
37.6 MJ/L
(135,000 BTU/GALLON)
LP GAS
26.6 MJ/L
(95,500 BTU/GALLLON)
NATURAL GAS
38.4 kJ/L
(1,031 BTU/ft3)
STEAM
2.3 MJ/kg
(1000 BTU/LB)
ELECTRICITY (2)
3.6 MJ/kWh
(3,413 BTU/kWh)
HEATING HOT WATER,
HEAT CONTENT OF FLUID
CHILLED WATER
ENTERING THE FACILITY
TABLE 7-3 NOTES:
(1) If a given energy source consistently differs from these
conversion factors by greater than 10%, then use the actual unit BTU content
value instead of the conversion factor shown.
(2) Electricity is not typically used for space heating. In the
exceptional case where it is cost effective and greater than 10% of the
annual space heating is derived directly from electric resistive heating, the
energy consumed shall be multiplied by 2.2 to account for conversion losses.
7-8
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