RSGL

Conversions

Heat Conversions

Basic Units:
1 Joule = 0.24 Cal
1 Calorie = 4.156J = 0.004 Btu
1 Btu = 1055 = 252 Cal (0.252 Kilocalories)

Multiples

Standard Reference Fuel and Equivalent

Base on GCVs for:

Natural Gas            : 9,500 Kcal/SM3
Coal                        : 6,880 Kcal/Kg
Oil                           : 10,660 Kcal/Kg

Pressure Conversions

	Bar	Atm	Kgf/cm2	lbf/in2	Mn Hg	in Hg	N/M2 (Pascal)
1 Bar	1	0.987	1.02	14.5	750	29.5	100,000
1 Standard atmosphere	1.013	1	1.03	14.7	760	29.9	101,325
1 Kilogram force per square centimeter (kgf/cm2)	0.981	0.968	1	14.2	736	29.9	98,066
1 Pound-force per square inch (lbf/in2 or psi)	0.069	0.068	0.07	1	52	2.0	6,895

Volume Conversions

Temperature Conversion Formulae

oF = 9/5oC+32
oK = oC + 273.15
oR = oF + 460

Frequently used Conversions in the Gas

1 SCM (Standard Cubic Meter)	= 1 cubic meter@ 1 atmosphere of pressure and 15oC temperature
1 Cubic meter	= 35.3 cubic feet
1 BCM (Billion Cubic Metre/year of gas (consumption of production) 1 TCF (Trillion Cubic Feet) of Gas Reserve	= 2.8 MMSCMD =4 MMSCMD	2.74 MMSCD (365 days/year) = 3.88 MMSCMD (100% Recoverable for 20 years @ 365 days/annum)
1 MMTPA of LNG	= 4 MMSCMD	= 3.60 MMSCMD (Mol. Wt. of 18 @ 365 days/annum)
1 MT of LNG	= 1300 SCM	1314 SCM (Mol.Wt. of 18)
CGV (Gross Calorific Value)	= 10,000 Kcal/SCM
NCV (Net Calorific Value)	90% of GCV
1 million BTU	25.2 SCM
1 million BTU of energy is released by 25.2 SCM of gas with GCV of 10,000 Kcal/SCM
1 million US$	Rs.5.4 CR.
1 US$/MMBTU	US$ 54/100 SCM Rs. 2160/ 1000 SCM	(Exchange rate 1 US$=Rs. 54)
Gas required for 1MW of power Generation	= 4500 SCM per day (SCMD)	4400 (Heat rate of 1850 Kcal/kWh)
Power Generation from 1 MMSCMD Gas	= 220 MW
Specific Gravity of gas Density of gas	= 0.65 =0.75 kg/SCM	0.62 (MW of gas/MW of air, MW of gas-18 0.76 (MW of gas-18)