Using vibrations to improve heat exchange on thermal power station tube plate

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Using vibrations to improve heat exchange on thermal power station tube plate

Popis výsledku v původním jazyce

Thermal power station efficiency is greatly influenced by heat exchange between hot gases in the boiler and its steam ductwork. The hot gases however contains huge amount of flying ashes which stick to the tubes in high volumes and effectively isolate them from heat exchange. Current approach is based on steam washers inserted into the boiler. The temperature in the boiler is greatly decreased, so combustion process is negatively influenced. Recent approach is based on acoustic excitation by huge horns.It's industrial application is however based on trial and error approach, which provides quite stochastic result. The paper investigates the mechanism of acoustic pipe cleaning. Industrial measurements and experiments were carried on. Laboratory model of the tube plate was built and used for experiments with acoustic cleaning. The initial methodology for acoustic horn application is suggested, based modal and acoustic properties of the boiler with tube plates.

Název v anglickém jazyce

Using vibrations to improve heat exchange on thermal power station tube plate

Popis výsledku anglicky

Thermal power station efficiency is greatly influenced by heat exchange between hot gases in the boiler and its steam ductwork. The hot gases however contains huge amount of flying ashes which stick to the tubes in high volumes and effectively isolate them from heat exchange. Current approach is based on steam washers inserted into the boiler. The temperature in the boiler is greatly decreased, so combustion process is negatively influenced. Recent approach is based on acoustic excitation by huge horns.It's industrial application is however based on trial and error approach, which provides quite stochastic result. The paper investigates the mechanism of acoustic pipe cleaning. Industrial measurements and experiments were carried on. Laboratory model of the tube plate was built and used for experiments with acoustic cleaning. The initial methodology for acoustic horn application is suggested, based modal and acoustic properties of the boiler with tube plates.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Computational Mechanics 2010

ISBN

978-80-7043-919-7

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

University of West Bohemia

Místo vydání

Plzeň

Místo konání akce

Hrad Nečtiny

Datum konání akce

8. 11. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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