Fjernvarme Fyn

Replacement of Economizers 1, 2, 3, and 4 - Odense, Denmark

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Client: Fjernvarme Fyn Affaldsenergi A/S

Year: 2019

Milestones

• Contract: 17-12-2018
• Production start: 07-01-2019
• Start on site: 01-07-2019
• Hand over: 26-09-2019

Data

• Fuel: Waste
• Steam temp.: 380 °C
• Steam pressure: 78 bar(g)
• Steam production: 30 kg/s

Project description

In December 2018 Babcock & Wilcox Renewable Service won an order for the replacement of 4 economizers on a waste-to-energy line (Line 13) at Fjernvarme Fyn.

Scope of delivery included project management, design, engineering, procurement, manufacturing, delivery, dismantling of the existing
economizers, installation, testing, commissioning and documentation. A different material was selected for economizer 1 due to corrosion problems, but apart from that, the economizers were replaced one-toone with same geometry and heating surfaces. A new feedwater shunt pump was included to provide a higher inlet temperature by mixing of cold and hot feedwater.

Tube Material for Economizer 1:
Ø33.7 x 3.6 mm, ASTM213/TP347HFG

Tube Material for Economizers 2, 3, and 4:
Ø38.0 x 4.0 mm, St. 35.8 /15 Mo3 – III DIN 17175

Scope of supply

• New economizers 1, 2, 3 and 4
• Shunt pump system, including valves and instrumentation
• Thermal insulation and cladding
• Necessary scaffolding and crane assistance
• Opening and closing of the boiler roof
• Delivery of basic spare parts
• Cleaning and blasting of components
• NDT
• 3rd party approvals
• Documentation