Energy and Environmental Performance of VSBK

1
Energy and Environmental Performance of VSBK

• Stack and energy monitored by
• Institute of Environmental Management, Nepal
• Anil Datta Bhatta
• Programme Engineer
• VSBK Programme Nepal

2
Technologies in the Kathmandu Valley

• Total no. of kiln 169

3
Energy Used in the Valley

• Coal is the major fuel used
• 65 thousand tonnes of coal consumed annually
• Energy shares 35 in the total brick production
  cost

4
Environmental concern of the Valley

• Environmental pollution is the major issue
• Second largest contributor to emission
• 30 TSP and 28 PM10
• Fugitive and stack emission the major
  environmental impact

5
Energy used in VSBK

• Coal is the source of energy
• Calorific value around 6000 Kcal / Kg
• Visually dull and heavy in nature
• Weight and size of coal maintain the fire
  position
• No internal fuel added

6
Energy Performance of VSBK

• Energy performance is superior
• Monetary saving for entrepreneurs

7
Energy Performance of VSBK
8
Parameters that leads to energy saving
Minimum heat loss from Kilns surface
Chimney insulation
Control over coal quality quantity
Use of lid cover
9
Parameter that leads to energy saving
Proper damper operation
Practice of Maintaining fire
10
VSBK offers

• Cleaner working environment for the worker
• Cleaner air for its neighborhood
• Eco friendly bricks for the people
• But How ?

11
Stack emission monitoring

• Max. emission limit for SPM set by government
  900 mg / Nm3
• Stack emission from VSBK least compare to others

12
Mass emission load across different technology

• VSBK reduces SPM emission drastically at
  source
• Result shows the potential of VSBK for improved
  air quality

13
Ambient air monitoring at loading area of VSBKs
14
Finally by the introduction of VSBK

• Pollution is reduced by 90
• Energy is saved by 40 than MC BTK and 60
  than FC BTK
• Better working conditions
• Cleaner environment
• Benefited people by providing eco-friendly bricks