Our facility saw a 5" reduction in GT backpressure as a direct result of the GE Pressure Wave cleaning on a single HRSG, from 23" H2O down to 18" H2O. This increased plant summer output by around 5 MW total from just a single HRSG cleaning. Winter output had been limited due to the increased mass flow, and backpressure surpassing the trip limits. The cleaning allowed us to avoid a 20+ MW reduction in winter output by gaining margin to the exhaust pressure trip limit
Reliability Engineer, Cogentrix Energy Power Management
A more effective way to clean
GE offers a solution for effective tube cleaning for all HRSG types. PressureWave Plus™, developed by BANG&CLEAN® Technologies AG, uses controlled pressure waves to penetrate deep into the tube bundle for a more effective and efficient cleaning.
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PressureWave Plus advantage
When compared to other technologies, the PressureWave Plus advantages are clear. See how it stacks up to the competition.
REDUCED RISK OF FOULING
DECREASED CLEANING TIME
NO RISK TO
How it works
Compared with traditional HRSG cleaning methods, PressureWave Plus provides a more effective and efficient cleaning. How?
Complete HRSG cleaning easily while offline
PressureWave Plus cleanings can be completed in parallel to regularly scheduled gas turbine maintenance, reducing plant downtime.
No scaffolding needed
A special lance is introduced into the area between the pressure part modules. A bag at the end of the lance is then inflated with a combustible mixture which is ignited remotely.
No damage to tubing during cleaning
The resulting pressure wave and tube vibrations dislodge deposits without damaging tubing, and is repeated in many locations.
A fast, deep cleaning
Once the HRSG tubing is thoroughly cleaned, the debris is removed from the floor of the unit.
See it in action
Curious to see for yourself? Check out our animation of the PressureWave Plus process, from start to finish.
Want to learn more?
If you still have questions about PressureWave Plus or you’d like to run the numbers for yourself, check out our “Top 10 PressureWave Plus questions” interactive document, or try out our fuel calculator.
PressureWave Plus TM Calculator
Want to learn how much you could save with PressureWave Plus? Tell us a little about your power plant, and we'll do the rest.
Since we started conducting PressureWave Plus cleanings, GE has removed over 795 tons of debris.
What is your gas turbine size?
How many hours do you run your HRSG per year?
2-3 days a week(3000 hrs)
2 months off per year(7000 hrs)
365 days per year(8760 hrs)
Adjust if needed
How much pressure increase have you seen over your original design during the most critical time of the year (e.g. summer)?
INCHES OF WATER
Example: If your current back pressure is 17 inwc and design was 11 inwc, you would input 6 inwc
Additional cost savings
Choosing PressureWave Plus can help you achieve more fuel savings, helping you save:
Potential savings for next year (USD)
Additional energy savings
By using PressureWave Plus cleaning technology on your HRSG, you could realize an annual additional energy savings of:
MW/h PER YEAR
Each day GE’s Power capacity supports an additional 100,000 people worldwide