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Energy Conversion Matrix
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Energy Conversion Matrix

Frequently used General Conversions in the Gas Industry

1 SCM (Standard Cubic Meter) = 1 cubic metre @ 1 atmosphere pressure and 15.56 ° C
1 Cubic Metre = 35.31 Cubic feet  
1 BCM(Billion Cubic Metre) / Year of gas (consumption or production) = 2.74 MMSCMD 365 Days a Year
1 TCF (Trillion Cubic Feet) of Gas Reserve = 3.88 MMSCMD 100% Recoverable for 20 years @ 365 days / Annum)
1 MMTPA of LNG =3.60 MMSCNMD Mol.Weight of 18 @ 365 days/Annum)
1 MT of LNG =1314 SCM Mol.Weight of 18
Gross Calorific Value (GCV) 10000 Kcal/ SCM  
Net Calorific Value (NCV) 90% of GCV  
1 Million BTU (MMBTU) = 25.2 SCM @10000 Kcal/SCM; 1 MMBTU= 252,000 Kcal)
Specific Gravity of Gas =0.62 Molecular Weight of Dry Air=28.964 gm/mole)
Density of Gas =0.76 Kg/SCM Mol.Weight of Gas 18 gm/mol
Gas required for 1 MW of Power generation =4128 SCM per Day @50% efficiency of Combined Cycle Operation; at a station heat rate of 860 Kcal/Kwh~ 1720 Kcal/Kwh@50% Thermal Efficiency)
Power Generation from 1 MMSCMD Gas =242 MW @50% efficiency of Combined Cycle Operation; at a station heat rate of 860 Kcal/Kwh~ 1720 Kcal/Kwh@50% Thermal Efficiency)