Loading...
HomeMy WebLinkAbout~Master - Awarding a Contract to The Babcock & Wilcox Company for the Engineering and for the Sourcing and Fabrication of Material for the Purpose of Improving the Control of the Steam Temperature of the Unit 8 Boiler RESOLUTION NO. 21-151 RESOLUTION AWARDING A CONTRACT TO THE BABCOCK& WILCOX COMPANY FOR THE ENGINEERING AND FOR THE SOURCING AND FABRICATION OF MATERIAL FOR THE PURPOSE OF IMPROVING THE CONTROL OF THE STEAM TEMPERATURE OF THE UNIT 8 BOILER FOR THE CITY OF AMES,IOWA WHEREAS, the Electric Utility has two high-pressure steam generation units within the City's Power Plant, referred to as Units No. 7 and 8; and, WHEREAS, on June 12, 2018, the City Council approved a contract with the original equipment manufacturer(OEM)of the Unit 8 boiler,the Babcock&Wilcox Company,to model and study the flow characteristics of the boiler; and, WHEREAS, the purpose of the study was to identify improvements to control the steam outlet temperature leaving the superheater of the boiler, especially when the unit is operated at less than rated output; and, WHEREAS,Babcock&Wilcox Company recommended two physical changes be made to the boiler to provide the desired outcome: 1) Replace the original lower sidewall headers of the boiler with new headers of a slightly different design, and 2)Install eight riser tubes connecting the boiler's upper headers to the steam drum; and, WHEREAS, the proposed changes to the boiler, along with cladding of boiler tubes in targeted areas of the boiler with Inconel alloy(already approved by City Council, and underway), will assist in mitigating the corrosion in the boiler associated with co-firing refuse derived fuel (RDF); and, WHEREAS, staff is requesting a Contract be awarded to the Babcock&Wilcox Company of Kansas City, Missouri, in the amount of $376,486 (includes sales tax) for the necessary engineering, materials needed, and fabrication of the replacement headers and riser tubes; and, WHEREAS,installation of the component will be completed by TEi Construction Services, Inc.,a firm already under contract for the overall Unit 8 boiler tube replacement project and the cost to install Babcock&Wilcox's boiler modifications is included in TEi Construction Services existing tube installation contract; and, WHEREAS,the Unit 8 Boiler Repair project budget has$339,860 available for this project and the remaining $36,626 required will be taken from the balance remaining in the Capital Improvement Project(CIP)budget for the Unit 7 Turbine Generator Overhaul; and, WHEREAS, this project will leave the Unit 8 Boiler Repair Project budget with a balance of zero dollars, and as evidenced with the Unit 7 Boiler Repair project undertaken in 2019, oftentimes unforeseen conditions can be encountered when overhauling a boiler which require changes to the materials and installation contracts; and, WHEREAS,although the materials and installation for the Unit 8 Boiler Overhaul have been bid,zeroing out the budget for that project will result in no funding remaining available in the proj ect account to address any change orders if required; and, WHEREAS,a separate project for the Unit 8 Turbine/Generator Overhaul will be undertaken this spring and summer. NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Ames, Iowa, that the Contract for the engineering and for the sourcing of fabrication of material for the purpose of improving the control of the steam temperature of the Unit 8 boiler to The Babcock& Wilcox Company of Kansas City, Missouri, in the amount of$376,486 is hereby approved. ADOPTED THIS 23rd day of March, 2021. Diane R. Voss, City Clerk John A. Haila, Mayor Introduced by: Betcher Seconded by: Beatty-Hansen Voting aye: Beatty-Hansen, Betcher, Corrieri, Gartin, Junck, Martin Voting nay: None Absent: None Resolution declared adopted and signed by the Mayor this 23rd day of March, 2021.