Chimney liner modifications at Louisville Gas and Electric Company`s Mill Creek Station Units 1 and 2
- Louisville Gas and Electric Co., KY (United States)
- Burns and McDonnell, Kansas City, MO (United States)
The chimney serving Mill Creek Units 1 and 2 is 600 ft tall and contains two, insulated carbon steel liners. The liners have a base diameter of 18 ft.-6 in. and are bottom supported, at an elevation 17 feet above grade. The liners were constructed in 1971 and have been in operation since 1972. The liners are not coated. Due to the scrubbed gas operating conditions, the liners have experienced corrosion. Based on metal thickness testing and structural analysis, the liners were found to be overstressed in compression at the breech openings. LG and E hired Burns and McDonnell to design the modifications necessary to keep the liners from buckling and to support a future Alloy C-276 lining. Two options were considered: Option 1--add vertical stiffeners on the outside of the chimney liners; Option 2--resupport the existing liners, such that the liners are hung in tension. The estimated cost of each liner modification option is $1.3 to $1.4 million. Option 1 was selected by LG and E. LG and E has already initiated stiffening of the breech openings on each liner. If substantial thinning of the liners occurs, the remainder of the liners will be stiffened and an Alloy C-276 lining will be installed.
- OSTI ID:
- 514831
- Report Number(s):
- CONF-970456-; TRN: IM9737%%325
- Resource Relation:
- Conference: 59. Annual meeting of the American power conference, Chicago, IL (United States), 1-3 Apr 1997; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of the American power conference: Volume 59-1; McBride, A.E. [ed.]; PB: 613 p.
- Country of Publication:
- United States
- Language:
- English
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