New ‘Dry’ Technology for Cleaning Power Plant Boilers in Indonesia
POWER WAVE GENERATOR (PWG)
INDESCO is the exclusive distributor of the new PWG boiler-cleaning technology manufactured in Switzerland for coal-fired boilers (and biomass boilers) in power plants and large industrial facilities throughout Indonesia.
The PWG removes ash and slag that accumulates on the boiler tubes with a ‘dry’ high-pressure (~700 Bar) 3-dimensional Power Wave that is generated from Compressed Air and Propane Gas.
The PWG continuously generates and injects its high-pressure Power Wave into the boiler on a pre-programmed, automated basis to keep the ash and slag from accumulating on the tubes and eliminate common fouling and slagging in the boiler.
Ash/Slag is safely removed and remains off the boiler tubes resulting in a sustainable increase in heat transfer and reduction in boiler temperature that:
- Reduces coal consumption and costs
- Reduces boiler cleaning costs
- Reduces CO2 emissions
- Increases steam availability and power generatingon capacity
- Reduces ‘forced’ shutdowns
- Improves boiler reliability
PWG Benefits
The PWG:
- Removes Ash/Slag on a continuous basis to keep the boiler clean and reduce ongoing cleaning costs and forced shutdowns
- Reduces use of Soot Blowers and their ‘non-power’ steam consumption
- Is much safer, less harmful and less costly than current boiler cleaning technologies
- Improves the operating and energy efficiency of coal-fired boilers to increase the generating capacity and potential revenues of power plants
- Reduces energy/operating costs and CO2 emissions of boiler plants
The benefits of using PWGs to clean boilers versus current technologies are that they:
Dry Cleaning Technology:
- Do not use or introduce water or steam into the boilerNo wet components whichto accelerates tube corrosion, or slagging and fouling (like Water Cannons & Soot Blowers)
Continuous and Flexible Cleaning Cycles
- Eliminate Ash/Slag accumulation on a sustainable basis
- Operate on 24/7 basis with programmed Power Wave Shots up to every 15 minutes
- Adjust schedule/Program adjustments and monitoring performance on a remote basis
3 Dimensional (3D) Cleaning Effect
- Clean surfaces on a 360 basis versus with direct contact like Water Cannons & Soot Blowers
Lower Operating Costs
- Does not use steam (like Soot Blowers) taken from generating power
- Uses low-cost Compressed Air and Propane Gas (vs. high-cost ethane/oxygen of SPGs)
Safety
- Does not create dangerous explosion inside boiler (like the Bang & Clean)
- Pressure from Power Wave is much lower that current steam pressure in Pipes/Tubes
- Automatically operates with no open manholes, gas cylinders on platforms, etc
- No danger due to human failure
Successful Jawa Power Project
INDESCO has completed its successful implementation of 4 PWGs at one of Jawa Power’s 660MW Coal Fired Power plants in Probolinggo which has achieved the following:
- Removed over 22 MT of Ash/Debris in first 12 hours
- Continued Ash/Debris disposal at 2 times the “Before-PWG” level
- Phased shutdown of Soot Blowers
- Significantly reduced cleaning requirements during scheduled shutdowns
- The targeted reduction of the “Before PWG” Back Pass temperature
- Retaining the reduced temperature since boiler’s major shutdown and cleanin
- Extremely cost-effective reduction in Coal Consumption and CO2 Emissions
- Cost reductions in Coal, O&M and Cleaning during Shutdowns
- Reduced Steam from shutdown of Soot Blowers