North Battleford – Saskatchewan, Canada
Perimeter screens had been installed in 2014 to reduce wind created vibration that caused frequent vibration trips on their ACC which is 2 streets by 5 rows. In 2019, North Battleford planned some output improvements where they needed more capacity from the ACC.
Galebreaker was hired to provide a CFD Analysis and a structural analysis and to determine the optimum screen configuration to allow a heat load increase while not impacting the vibration levels. Also our scope included the benefits of changing fans. A cruciform screen was added and the perimeter screens were shortened. This work was completed in August 2019.
Project Date: Completed August 2019
- 1 x 1 GE 7FA.04 CCGT with Air Cooled Condenser, STG and HRSG
- COD June 3 2013
- Performance test passed successfully and historical plant thermal performance has been above expectations
- Ambient temperature avg. 40F, Range (-)40F to (+)100F, low humidity
- Wind speed on site 0-40 miles/hour
- Design point 100F, 6in Hg @ 11 mph
- Average Wind 8-12 mph From W-NW
- Base load facility: load range 50-100% CTG > 8000h per year
“We were having wind induced vibration trips when our fans were operating in the 40 to 70% speed range. Up to 40 to 50 fan trips per day! The board operator’s main focus was to keep the fans running. Since installation of the Galebreaker Perimeter Wind Screens we have not had any fan trips whatsoever (zero) and have completely solved our problems with wind induced fan tripping. We are also confident that the installation of the Cruciform will give us a thermal efficiency gain of over 15%”
Richard Pratchler – Maintenance Manager
Check some of our projects to know how we help businesses solve their challenges
Air Intake Screens in Illinois
Pre-filter screens for a gas fired cogeneration...
Debris Filter Screens in Alberta, Canada
Installing a combination of Galebreaker screens around the perimeter of the air cooler stopping any airborne contamination but still providing plenty of airflow with no impact on cooling...
Debris filter screens on an air cooled chiller in the UK
Debris Filter Protection in the UK Debris filter screens on an air cooled...
Debris Filters in Switzerland
Recycling Plant, Switzerland
Galebreaker wind screens with a specifically selected porosity to stop airborne debris but not completely block...
Full Weather Protection in Ontario
North Bay Power Plant
Performance Improvement in a Challenging...
Improving ACC Airflow in Massachusetts
The Dighton Power Plant
Installing a cruciform configuration underneath the ACC with our patented M75...
Improving Fan Performance near Las Vegas
Both cruciform and perimeter screens improve performance at the Apex Generating Station...
Improving Mechanical Performance near Boston
Blackstone Energy Project
Reducing fan and gear reducer stress at the ANP Blackstone Energy...
Installing Debris filter screens on Data Centres
Data centres are at the very heart of modern society and are central to the global...
Mega Watt Output Improvement in Mexico
Rio Bravo Energy
Improving vacuum on hot windy days at the Rio Bravo Energy...