Flue surface
Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) A compartment or division of a chimney for conveying flame and smoke to the outer air. (b) A passage way for conducting a current of fresh, foul, or heated air from one place to another. (c) (Steam Boiler) A pipe or passage for conveying flame and hot gases through surrounding water in a boiler; -- distinguished from a tube which holds water and is surrounded by fire. Small flues are called {fire tubes} or simply tubes. [1913 Webster]

2. In an organ flue pipe, the opening between the lower lip and the languet. [Webster 1913 Suppl.]

{Flue boiler}. See under {Boiler}.

{Flue bridge}, the separating low wall between the flues and the laboratory of a reverberatory furnace.

{Flue plate} (Steam Boiler), a plate to which the ends of the flues are fastened; -- called also {flue sheet}, {tube sheet}, and {tube plate}.

{Flue surface} (Steam Boiler), the aggregate surface of flues exposed to flame or the hot gases. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • flue surface — noun : the aggregate surface area of boiler flues exposed to flame or hot gases …   Useful english dictionary

  • Flue — (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) A… …   The Collaborative International Dictionary of English

  • Flue boiler — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

  • Flue bridge — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

  • Flue plate — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

  • flue sheet — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

  • Flue gas desulfurization — (FGD) is the technology used for removing sulfur dioxide (SO2) from the exhaust flue gases in power plants that burn coal or oil to produce steam for the steam turbines that drive their electricity generators. Sulfur dioxide is responsible for… …   Wikipedia

  • fire tubes — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

  • tube plate — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

  • tube sheet — Flue Flue (fl[=u]), n. [Cf. OF. flue a flowing, fr. fluer to flow, fr. L. fluere (cf. {Fluent}); a perh. a corruption of E. flute.] 1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage; esp.: (a) …   The Collaborative International Dictionary of English

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