BP46 - Bia Saigon Cu Chi
| Company name: Saigon Cu Chi Brewery - SABECO | |||||||||||||||||||
| Address: D3 Street, Tan An Hoi Ward, Cu Chi District, Ho Chi Minh City | |||||||||||||||||||
| Project Summary: Improving the energy efficiency with combined solutions at Tin Thanh Group's steam factory that supplies steam to Saigon - Cu Chi Brewery | |||||||||||||||||||
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Status before implementation Tin Thanh Group's equipment for steam supply to for Saigon - Cu Chi Brewery includes:
Fuel supply area and control system According to actual measurement and survey results, the current state of the boiler was as follows: - Oxygen content in the boiler exhaust flue gas was quite high (> 10%), causing fire loss to the boiler. - Electrical conductivity of the boiler blowdown water was quite high (13,340μS/cm), causing formation of deposits inside the boiler, thereby reducing heat transfer efficiency. - The outer surface of the air dryer was not insulated (the measured surface temperature was about 90-95oC), causing heat loss into the environment. - The boiler feedwater pipeline, combustion chamber flange and locking valves on the manifold were not insulated, thereby increasing heat loss into the environment. |
Result The steam supplier (Tin Thanh Group) has decided to implement the following solutions: - Adjust the boiler combustion mode to reduce the excessive air coefficient. After adjustment, the oxygen content in the exhaust flue gas has decreased from 10.09% to 7%. - Insulate the entire steam pipeline system, increase the thickness of insulation layer from 50mm to 100mm. - Insulate the boiler rear which is the position where the heat is recovered and insulate the feedwater tank. In addition, the steam supply plant also combined other solutions to enhance efficiency of the steam system, thereby ensuring the stable operation and reducing the environmental impact, including: - Installing a secondary water heater. - Installing a steam accumulator. - Repairing and renovating the fuel feeding system from one (01) feeder to two (02) feeders and increasing the flow rate of the high pressure head blowing fuel into the combustion chamber. - Installing additional dust filter cloth bags. After implementation, the boiler efficiency has increased from 73% to 77.36%. |
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Status before implementation Tin Thanh Group's equipment for steam supply to for Saigon - Cu Chi Brewery includes:
Fuel supply area and control system According to actual measurement and survey results, the current state of the boiler was as follows: - Oxygen content in the boiler exhaust flue gas was quite high (> 10%), causing fire loss to the boiler. - Electrical conductivity of the boiler blowdown water was quite high (13,340μS/cm), causing formation of deposits inside the boiler, thereby reducing heat transfer efficiency. - The outer surface of the air dryer was not insulated (the measured surface temperature was about 90-95oC), causing heat loss into the environment. - The boiler feedwater pipeline, combustion chamber flange and locking valves on the manifold were not insulated, thereby increasing heat loss into the environment. |
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Result The steam supplier (Tin Thanh Group) has decided to implement the following solutions: - Adjust the boiler combustion mode to reduce the excessive air coefficient. After adjustment, the oxygen content in the exhaust flue gas has decreased from 10.09% to 7%. - Insulate the entire steam pipeline system, increase the thickness of insulation layer from 50mm to 100mm. - Insulate the boiler rear which is the position where the heat is recovered and insulate the feedwater tank. In addition, the steam supply plant also combined other solutions to enhance efficiency of the steam system, thereby ensuring the stable operation and reducing the environmental impact, including: - Installing a secondary water heater. - Installing a steam accumulator. - Repairing and renovating the fuel feeding system from one (01) feeder to two (02) feeders and increasing the flow rate of the high pressure head blowing fuel into the combustion chamber. - Installing additional dust filter cloth bags. After implementation, the boiler efficiency has increased from 73% to 77.36%. |
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| Result of the project: | |||||||||||||||||||
| Total investment costs: | VND 4,280 Million | ||||||||||||||||||
| Power saving: | 993.61 tons of biomass (woodchips)/year | ||||||||||||||||||
| Cost savings: | VND 1,300 Million/Year | ||||||||||||||||||
| Payback time: | 3.3 years | ||||||||||||||||||
