MTOE Calculation
Energy conservation table and sample calculation for annual energy consumption in terms of MTOE
Sl. No |
|
|
1 |
1 Kwh |
860 Kcal |
2 |
1 kg Coal / coke |
Gross calorific value as per suppliers (coal Company’s) fastest Certificate |
3 |
1 Kg Charcoal |
6900 Kcal or as per supplier certificate |
4 |
1 Kg Furnace oil/Residual Fuel Oil/Low Sulphur Heavy Stock – Naptha |
10.050 kcal (density = 0.9337 kg/Litre) or as per supplier certificate |
5 |
High Speed Diesel |
11840 kcal (density = 0.8263 kg/Litre) or as per supplier certificate |
6 |
1 Kg Petrol |
11200 kcal (density = 0.8253 kg/Litre) or as per supplier certificate |
7 |
1 Kg Kerosene |
11,110 kcal (density of SKO= 0.7782 kg/Litre) or as per supplier certificate |
8 |
1 m3 Natural Gas |
8,000 to 10,500 kCal or as per supplier Certificate |
9 |
Other fuels or waste material of by products used a fuel |
Gross Calorific value as per the Certificate from central / State Govt. approved laboratory. |
* for the purpose of this table. 1 Kg of oil equivalent = 10,000 k-cal
1 metric tonne of oil equivalent (MTOE) = 10 × 106 Kcal
Assumption :- Annual Energy Consumption Figure
A. Electricity
- Purchased - 2200 Lakhs kWh/Yr
MTOE Equivalent = 2200 × 105 × 860 = 1892 × 102 Million kCal
= 1892 × 108/10 × 106 = 18920 mtoe
-
Own Generation
- Through DG Set
- Power Generation = 288 kwh/yr
- Diesel consumption = 7565 KL
Note : Mtoe will be calculated for Diesel input to generator,
not for the power generation from generator
mtoe Equivalent = 7565 kl (Density = 0.8263 Kg/Lit)
= 7565 × 103 × 0.8263 = 6251 × 103 Kg
= 6251 × 103 × 11840 = 74011 Million Kcal
= 74011 × 105/10 × 106
= 7401 MTOE
(iii) Co Generation
Coal = 80,000 T/Yr
G.C.V. = 5000 Kcal/Kg
Note : MTOE will be calculated for fuel input to the boiler, not the power generation from turbine, similarly approach may be deployed for calculating MTOE in Gas turbine
MTOE Equivalent = 80,000 × 103 × 5000
= 40 × 1010 K-cal
= 40 × 1010/10 × 106
= 40,000 MTOE
- Direct fuel fired equivalent such as Boilers, oven, dryers, furnaces and other equipments.
Annual furnace oil consumption in furnace
= 5000 KL (Density = 0.9337 Kg / Lit)
= 5000 × 103 × 9337 = 4668 × 103 Kg
= 4668 × 103 × 10.050/10 × 104
= 4691 MTOE
Note:If fuel is used as raw materials, it should not be considered for calculating MTOE. For example, natural gas is being used a raw material as well as fuel in fertilizer plant. The quantity of Natural Gas used as a raw material may be deducted.
- For chlor alkali manufacturing process. Hydrogen is generated as a by-product and is being used as a fuel, may be considered as a fuel input
- In some process liquid and solid waste is being generated having a substantial heating value for example in wood based paper industry black liquor and saw dust is generated as a by-products and used for process stem generation, may be considered as a fuel input.
