Technical Advisors

We can provide technical advisors to support your boiler project.  Are you planning to purchase a new HRSG and want to make sure the latest field experience is incorporated in to the specification?  Are you building a combined cycle power plant and need help reviewing and approving the HRSG vendor drawings?  Are you planning a major HRSG repair or upgrade?  Do you need someone to review a contrator's boiler repair procedures?  These are all examples where HRST can provide technical advisors to support your project.

Outage Technical Advisor - Our HRST technical advisors have extensive experience supervising welding, field repair, overseas fabrication, and erection of HRSGs. HRST will provide the hands-on, boiler–specific field expertise necessary to help a client with their maintenance outage. Our aim is to combine our boiler expertise with the contractor’s craft skills for the client’s beneficial outcome. Our experience includes pressure part repairs, liner and insulation repairs, pipe penetration seal repairs, catalyst replacement, HRSG upgrades, and HRSG erection.

New Boiler Specification and Design Review - Our experience can help you purchase and install a new boiler that includes the integrates the benefit of the latest field experience.  Problems found during our inspections can be used to highlight the need for the OEM to implement design improvements for your new HRSG.

Vendor Surveillance – This includes monitoring an OEM’s shop fabrication quality, monitoring the production schedule, or directing a subcontractor’s fabrication of components designed by HRST.

Expert HRST Product Installation – HRST offers technical advisor service to help our clients properly install the products we sell. This helps our client’s avoid outage delays and manage unexpected conditions that can occur during retrofit of new products in to existing boilers.

PDF Brochures: Expert Field Support; Technical Support

Above:  Technical advisors help insure proper installation quality.

Above:  HRST Techical Advisors were on site to help the client with these retrofits.

Client Testimonials

Boiler On-Site Technical Advisor Testimonial (April 2009)

Refinery Power Plant, California, USA

HRST, Inc. and Rob Tretter were very helpful in working with us on a project that was midstream for us. The original owner of the facility left several welds in the tube ties that were insufficient and the overall design of the entire system opened up the possibility for additional rubbing.  Rob inspected the tube ties and helped us formulate a game plan that solved the problem for us.  Rob was straight forward and I felt that the communication was excellent. What I liked most about Rob was that I felt like we were always on the same page. I did not have to ride Rob’s tail and that made it even easier.  Rob was very helpful and even offered us some additional advice regarding our boiler that we will put to good use.  I had a great experience with HRST, Inc. and Rob Tretter and would certainly do business with them in the future.

Boiler Specification and Design Review Service (November 2007)

F-Class Combined Cycle Power Plant, Ontario, Canada

Below is an excerpt from a 2007 article in Combined Cycle Journal.  As experienced powerplant developers and operators, Northland’s engineers also knew you never were going to get all the features/enhancements you’d like on any project. Nothaving direct F-class HRSG experience, Gliosca and his team called in HRST Inc, Eden Prairie, Minnesota, to review the boiler proposals and to help the IPP decide on upgrades worth paying for. HRST, which was familiar with the designs submitted by all vendors bidding, specializes in developing solutions for HRSGs that don’t behave the way the owners would like. After reviewing HRST’s vendor evaluations and reflecting on Northland’s experience, Gliosca, Lennox, Kaminski, and others in the organization recommended the following enhancements, among others:

1. FAC. In sections of the boiler most susceptible to this type of attack, reduce velocities to the degree possible and replace “standard materials” with P11. The company also is developing operating procedures that maintain water chemistry specs under tight control to minimize the opportunity for FAC initiation.

2. Add borescope ports in headers to enable visual inspection of areas prone to FAC attack.

3. Increase the size of drain piping for the superheater and reheater.

4. Add thermocouples at critical locations in tube bundles to more closely monitor thermal transients and guide operating procedures.

5. Beef-up tube restraints to reduce the probability of tube failures during transients.

6. Upgrade materials for the stack damper (located in the stack) to maximize life.

Click here to read the entire article from Combined Cycle Journal 3Q2007 article “Incorporate lessons learned into specification for new units.”