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

  1. Purchased  - 2200 Lakhs kWh/Yr

MTOE Equivalent  = 2200 × 105 × 860 = 1892 × 102 Million kCal
                                        

  = 1892 × 108/10 × 106 = 18920 mtoe
                                            

 

  1. Own Generation
    1. Through DG Set
    2. Power Generation         = 288 kwh/yr
    3. 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

 

extraction

 

Condensing

   

Power

 

TURBINE

                        

 

 

 

 

 


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
                                               

  1. 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.

 

 

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