Having a clean heat recovery steam generator (HRSG) is integral for your plant’s reliability and efficiency. PressureWave+ improves backpressure to near-design specifications, while improving full and minimum CC heat rates for increased plant performance.
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Improving efficiency with HRSG cleaning
GE offers a solution for effective tube cleaning for all HRSG types. PressureWave+, developed by BANG&CLEAN® Technologies AG, uses controlled pressure waves to penetrate deep into the tube bundle for a more effective and efficient cleaning.
Pressure waves penetrate deep into the module, achieving a better cleaning compared to alternative cleaning methods
Can be completed in a much shorter cycle compared to other methods, without damage to tubing
No need for scaffolding, which makes it a safer, faster, and more cost-effective solution
More than 200 PressureWave+ cleanings performed in the last 5 last years without any safety issues
Why wait for your next outage? Plan now for your summer peak operation!
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How it works
Compared with traditional HRSG cleaning methods, PressureWave+ provides a more effective and efficient cleaning. How?
Yes, we performed more than 200 cleanings in the last 5 last years without any safety issues.
Is there the possibility of damage to the SCR or other parts of the HRSG?
None of our customers have experienced either short-term or long-term damage to HRSG components such as tubes, tube-to-header welds, casing liners, expansion joint and catalysts.
Are there third-party studies that demonstrate PressureWave+ safety?
Yes, EPRI recently conducted an evaluation that found “No evidence of damage to tubes or other HRSG components…observed during these tests.” You can read the abstract here: Program 218: Heat Recovery Steam Generators | Product Abstract (epri.com). In addition, The University of Zurich and Bang&Clean conducted an independent study and concluded that “…in the considered realistic load cases, a permanent deformation due to the detonation can be excluded, unless both the boiler tubes and the weld seam are already weakened by overloading or corrosion.”
Is the PWP solution the same for all customers?
No, the PressureWave+ solution involves detonating a measured amount of gas, which is deployed inside plastic bags placed near the areas where buildup needs to be removed. We will tailor the solution to match the amount of cleaning your HRSG needs, which will involve either decreasing or increasing the cleaning force needed.
Compare for yourself
When compared to other HRSG cleaning technologies, the PressureWave+ advantages are clear. See how it stacks up to the competition.
Standard dry-ice cleaning
No scaffolding required
Limited confined space during operation
Reduced risk of fouling emission upon startup
Decreased cleaning time
Depth of cleaning of at least 3'
No risk to pressure parts
Hear from our customers
"Our facility saw a 5" reduction in GT backpressure as a direct result of the GE PressureWave+ 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
Discover PressureWave+ technology
Register today to learn why a clean HRSG is integral to your combined-cycle plant’s reliability and efficiency. Our experts will walk you through how GE’s PressureWave+™ technology effectively achieves a better cleaning, resulting in more fuel savings and additional power generation.