158
M. T. Sall et al.
Fig. 7 Connection from
bagasse to electricity at CSS
at 50% humidity). The CSS produces 420,000 tons/year of bagasse (Table 2); the
combustion of one ton of bagasse generates about 330 kWh of electricity (Fig. 7).
Bagasse is used as fuel for the boiler, the industrial unit of the CSS, the role
of which is to supply water vapor at a flow rate of 120 to 150 t/h, at 400°C and
under 40 bars of pressure, necessary for the operation of the other units (refinery,
agglomeration, power plant, etc.). The boiler room consists mainly of:
• Four mixed boilers that can operate on bagasse or fossil fuel, with a total
production capacity of 30 tons of steam per hour, and
• A new bagasse boiler IJT (ISGEC JOHN THOMPSON). This unit alone can
satisfy all the plant’s steam demand and has a capacity of 150 tons of steam per
hour.
CSS has two power plants:
• An old power plant with a capacity of 22 MW. This plant is currently used by a
single 9.5 MW turbo-alternator, and can only run on fossil fuel oil.
• A new 25 MW thermal power plant, built as part of the KT150 project. This
plant is cogenerative and can operate on fossil fuel or bagasse (the five boilers
mentioned above).
The 420,000 tons of bagasse produced in this way are used exclusively in the new
plant and can satisfy CSS’s energy demand, which provides for annual production
of 100 GWh. In the event that power plants become unavailable, CSS has more than
ten back-up generators.
Electricity production is distributed among the various units of the CSS agroindustrial farm (Table 3); the company is entirely self-reliant on energy and is not
connected to the national network.
The agricultural sector (plantation) uses 23% of the produced energy, mainly to
pump water irrigation (260 billion m3/year) and drainage water. 50.5% of produced
Table 3 Amount of energy used per activity at the CSS
Energy Used at the CSS
Sector
Turbo
alternator
units and
boilers
Factory
Production
Factory
Workshop
Fields CO2
Power
plant
CSS
village
Total
energy
consumed
Consumption
(MWh)
2,620
6,233
461
2,763 65
124
12,266
Consumption
(%)
21
50.5
4
23
0.5
1
100
M. T. Sall et al.
Fig. 7 Connection from
bagasse to electricity at CSS
at 50% humidity). The CSS produces 420,000 tons/year of bagasse (Table 2); the
combustion of one ton of bagasse generates about 330 kWh of electricity (Fig. 7).
Bagasse is used as fuel for the boiler, the industrial unit of the CSS, the role
of which is to supply water vapor at a flow rate of 120 to 150 t/h, at 400°C and
under 40 bars of pressure, necessary for the operation of the other units (refinery,
agglomeration, power plant, etc.). The boiler room consists mainly of:
• Four mixed boilers that can operate on bagasse or fossil fuel, with a total
production capacity of 30 tons of steam per hour, and
• A new bagasse boiler IJT (ISGEC JOHN THOMPSON). This unit alone can
satisfy all the plant’s steam demand and has a capacity of 150 tons of steam per
hour.
CSS has two power plants:
• An old power plant with a capacity of 22 MW. This plant is currently used by a
single 9.5 MW turbo-alternator, and can only run on fossil fuel oil.
• A new 25 MW thermal power plant, built as part of the KT150 project. This
plant is cogenerative and can operate on fossil fuel or bagasse (the five boilers
mentioned above).
The 420,000 tons of bagasse produced in this way are used exclusively in the new
plant and can satisfy CSS’s energy demand, which provides for annual production
of 100 GWh. In the event that power plants become unavailable, CSS has more than
ten back-up generators.
Electricity production is distributed among the various units of the CSS agroindustrial farm (Table 3); the company is entirely self-reliant on energy and is not
connected to the national network.
The agricultural sector (plantation) uses 23% of the produced energy, mainly to
pump water irrigation (260 billion m3/year) and drainage water. 50.5% of produced
Table 3 Amount of energy used per activity at the CSS
Energy Used at the CSS
Sector
Turbo
alternator
units and
boilers
Factory
Production
Factory
Workshop
Fields CO2
Power
plant
CSS
village
Total
energy
consumed
Consumption
(MWh)
2,620
6,233
461
2,763 65
124
12,266
Consumption
(%)
21
50.5
4
23
0.5
1
100