Air heater leakage: worse than you think

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Power (New York)

OSTI ID:20752249

Guffre, J ^[1]

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1. Paragon Air Heater Technologies (United States)

Every good engineer knows that you cannot control what you cannot measure. In the case of rotary regenerative air heaters, many plants fail to limit the negative impact of heater leakage because they use measurement procedures and/or devices that fail to take into account its indirect effects. For a 500 MW coal-fired plant the heat energy that air heaters capture and recycle amounts to about 60% of that existing in the boiler, equivalent to 1.5 Btu per hour. This article explains the importance of accurately measuring leakage levels and the need to use modern seals to make heaters air-tight. 4 figs.

• OSTI ID: 20752249
• Journal Information: Power (New York), Vol. 150, Issue 3; Other Information: [e-mail]; ISSN 0032-5929
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
AIR HEATERS
BOILERS
LEAKS
SEALS
COAL
FOSSIL-FUEL POWER PLANTS
OXYGEN
HEATING RATE