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HRSG Testimonials
We can't say enough about the work your company has done for us over the last couple of years. The work ethic your people bring to the job site is a true rarity. From “Safety First” commitment to “What Can We Do To Help” attitudes is what really what makes it work. The CO2 blasting done on our HRSG tubes has increased the total output of the Gas Turbines as much as 3 Megawatts per units and the repairs made to our exhaust stacks will extend the life of the plant for many years. We look forward to working your company in the future on CO2 tube blasting to help maintain equipment performance and upcoming projects such as sealing our turbine building roofs.
Many Thanks,
Don Stuart
Lead Maintenance
Verso Co-Gen
Jay, Maine
Please consider this letter as our sincerest recommendation for you providing the best quality CO2 blasting of our HRSG. We have used various contractors to achieve the required level of cleaning annually, and you and your crew certainly are top-notch! Your trouble-free approach and diligence are certainly very professional and very welcome. I rarely take the time to formally thank contractors for their service; however, your level of excellence warrants this letter. If your perspective clients have any questions have them feel free to contact me at: 661-588-9581 office, 209-985-7668 cell.
Sincerely,
Ben R. Maier
River Road Generating Plant
We first contracted with Precision Iceblast two year back to perform cleaning of our HRSG gas sides. This cleaning included vacuum of our catalyst banks and air/CO2 cleaning of back end tube banks. I am glad to say that the people that arrived for the job were enthusiastic and well motivated to perform the best job they possibly could. The work ethic your people bring to the job site is beyond what I have seen in contractors doing this type of work.
Your team had removed more material from the Gas sides than any previous cleaning to date. Backpressure has decreased allowing greater performance from the turbine and HRSG. The cleaning of the catalyst was gentle enough not to cause any damage meanwhile being effective enough to properly clean the surfaces.
We have since used your services again with the similar results. I look forward to working with your organization for future work at the site and recommend your services to anyone needing this type of work.
Thank You
Steve Snopkowski
O & M Manager
Millennium Power
Charlton, MA
We have used Precision Iceblast twice at the Fort St. Vrain Power Station for CO2 blasting of Iron Sulfate deposits from our Feedwater Heater sections of the HRSG's. The crews have reported to the job site on schedule, worked in a very professional and friendly manner and have had all tools needed to complete the job. Their work ethic is excellent and they work very hard a meeting the needs of the customer. I would highly recommend them for ice blasting projects.
Jesse Brungardt
Senior Systems Chemist
Fort St. Vrain Power Station
We are a 2 x 1 natural gas fired combined cycle power plant. Over the past 5 years, we hired a handful of different companies to perform gas-side tube cleaning of our HRSGs. We tried CO2 blasting and chemical cleaning. Not one of the companies was able to provide the results that we achieved with Precision Iceblast. We had been contemplating hiring a company to spread tubes, but they were able to clean the hard-to-reach sections of our HRSG using conventional methods alone. Where others had failed before, Precision Iceblast succeeded.
Greg Cvetnich
Technical Coordinator
El Dorado Energy, LLC
The Port Westward Combined Cycle Plant is located in the northwest corner of Oregon State and is owned and operated by Portland General Electric. It is made up of a Mitsubishi 501 G1 gas turbine, Mitsubishi steam turbine, and a Deltak HRSG with CO and SCR catalysts. The plant has the ability to use gas from two different sources; Williams’ Northwest pipeline and the Northwest Natural Gas “Mist” storage fields. Fed primarily from British Columbia, both gas sources have an abundance of sulfur that leads to contaminant build up downstream of the SCR catalyst on the tube surfaces.
Precision Ice Blasting has been called in during a couple of past outages to remove the buildup of debris (ammonium sulfate salts) collecting on the tubes. Several advantages which Precision Ice Blasting has over other tube cleaning vendors are the high pressure equipment employed and the willingness to work with the plant personnel to remove debris lodged deep within the bundles. Typically dry ice blasting is most effective on the first couple of rows of tubes (direct line of sight). This is unfortunate since most bundles are configured with 8 or more tube rows and a lot of untouched debris remains during cleaning. Creative techniques have been discussed and tried with some success. During the last outage a total of 28 barrels of contaminants were removed. The direct impact on plant performance has not been quantified, but any reduction in back pressure helps improve efficiency and plant output.
Bill Monroe
PGE Port Westward Plant
I wanted to say thank you for the outstanding work Precision Iceblast did at Rocky Mountain Energy Center during our 2010 fall outage. The crew you sent was fantastic. I deal with numerous contractors during plant outages, Precision’s crew made my job a little easier by being completely self-sufficient. Contractors that we have used in the past to ice-blast our HRSG feed water tubes have not met our satisfaction to say the least. Your crew worked around the clock to get the job done ahead of schedule, cleaned the tubes better than the other contractors have been done before and clean up was perfect. I look forward to working with you guys again.
Many thanks,
Joshua Harris
Maintenance Tech
Rocky Mountain Energy Center
I have the pleasure of writing this letter of recommendation in light of the recent dry ice cleaning carried out In New Zealand for Contact Energy Ltd. The dry ice cleaning was carried out in December 2010 for a duration of 18 days. Upon recommendation from other power producers abroad it was agreed to engage the services of Precision Iceblast Corporation.
Contact Energy Ltd has a strong culture and attitude to safety which was clearly emphasized to Precision Iceblast Corporation to which they responded impeccably. Precision Iceblast Corporation’s attitude and management is of a very high standard. They conduct themselves in a professional manner with the aim to complete the planned work with zero harm, on time and within budget. They have a good work ethic, are well prepared and are most accommodating of the requests of the client. Their equipment, safety standards and procedures are well thought, documented and carried out. Communication between Precision Iceblast Corporation and Contact Energy Ltd was clear and informative. The level of information and content was never in question, Precision Iceblast Corporation was always open with their approach and delivery of this information with regular feedback and progress updates before during and after the project. They are very knowledgeable in this line of work and openly put forward recommendations to capitalize on the future outputs and efficiencies of your plant.
In closing, Contact Energy has achieved a marked reduction in back pressure of +- 10mbar (average taken across the HRSG) and an increase of 18Mw. These figures were measured at the same load and approximately the same atmospheric conditions. This equates to a substantial increase in operational efficiencies and long term benefits.
Working with Precision Ice Blasting has been a pleasure. I commend them on their ability, attitude and professional manner in which they conduct their business. I am happy to stand as a verbal referee and would welcome the opportunity to work with them in the future.
Yours sincerely
Glen Minkley
Maintenance Supervisor
Contact Energy
During the spring 2010 HRSG inspection tube fin plugging was discovered in access lane F, G, and H. In access lane F the tube fin plugging was estimated at 35 to 40% plugged throughout the tube face with some areas up to 70%. We contracted Precision Iceblast to perform the CO2 blasting. They used 300 psi and 1150 CFM to blast the modules. Some of the area’s required several passes to penetrate the module and remove the rust. Precision Iceblast worked very safely. They had good job briefings and always had proper PPE on.
I was very skeptical before this was performed but after looking at the tube fin condition when the cleaning was completed, I am convinced this is our best approach to clean the modules. Precision Ice Blasting would blast until they penetrated all the way through the module. They would clean and then ask me to verify with their supervisor before they would move to the next module. Precision Iceblast cleaned the tube fins and modules very effectively and I highly recommend them.
Marty Shelton
Entergy Ouachita Power
Sterlington, LA
318-665-5022 work
318-471-5443 cell
The City of Lakeland contracted with Precision Iceblast Corporation to use High-Volume, High-Pressure Air to Blast our Heat Recovery Steam Generator (HRSG) during their 2010 Fall outage.
Precision Iceblast Corporation arrived onsite November 1, 2010 and began working to prep our HRSG to begin their task of cleaning the finned-tube-bundles of our Nooter/Eriksen HRSG. Precision Iceblast Corporation employees were extremely competent and conscious about their work for the City of Lakeland and performed extremely well to remove as much rust as possible to improve our unit’s performance.
The following is a breakdown of our cleaning schedule and how much rust was removed. I will only mention when Precision Iceblast Corporation employees cleaned our HRSG.
The first cleaning of the HRSG produced one (1) 5-Gallon bucket of rust – other ice blaster
The second cleaning of the HRSG produced 4,500 pounds of rust – Precision Iceblast Corporation
The third cleaning of the HRSG produced 4,000 pounds of rust - Precision Iceblast Corporation
The fourth cleaning of the HRSG produced an unknown amount of rust - Precision Iceblast Corporation
The fifth cleaning of the HRSG produced 55 gallons of rust – other ice blaster
The sixth cleaning of the HRSG produced 5,840 pounds of rust - Precision Iceblast Corporation
The seventh cleaning of the HRSG produced 6,180 pounds of rust - Precision Iceblast Corporation
In February 2005 before Precision Iceblast Corporation cleaned the HRSG
Combustion Turbine Megawatts 221.21 MW’s
Combustion Turbine Exhaust Pressure 22.26 INWC
Removal of 4,500 lbs of rust
After Precision Iceblast Corporation cleaned the HRSG
April 13, 2005 at 1648
Combustion Turbine Megawatts 249.20 MW’s
Combustion Turbine Exhaust Pressure 21.03 INWC
In August 2010 before Precision Iceblast Corporation cleaned the HRSG
Combustion Turbine Megawatts 204.79 MW’s
Combustion Turbine Exhaust Pressure 22.57 INWC
Removal of 6,180 lbs of rust
After Precision Iceblast Corporation cleaned the HRSG
December 22, 2010 – Before Tuning completion
Combustion Turbine Megawatts 230.30 MW’s
Combustion Turbine Exhaust Pressure 25.90 INWC
January 24, 2011 – After Tuning completion
Combustion Turbine Megawatts 231.70 MW’s
Combustion Turbine Exhaust Pressure 25.10 INWC
Robert W. Bridges
City of Lakeland - Energy Production
3030 East Lake Parker Drive
Lakeland, FL 33805
E-mail: bob.bridges@lakelandelectric.com
Telephone: (863) 834-6612