New technique of the local heat flux measurement in combustion chambers of steam boilers

• Autorzy: Taler J. , Taler D. , Sobota T. , Dzierwa P.
• Języki publikacji: EN

Abstrakty

EN

A new method for measurement of local heat flux to waterwalls of steam boilers was developed. A flux meter tube was made from an eccentric tube of short length to which two longitudinal fins were attached. These two fins prevent the boiler setting from heating by a thermal radiation from the combustion chamber. The fins are not welded to the adjacent water-wall tubes, so that the temperature distribution in the heat flux meter is not influenced by neighbouring water-wall tubes. The thickness of the heat flux tube wall is larger on the fireside to obtain a greater distance between the thermocouples located inside the wall which increases the accuracy of heat flux determination. Based on the temperature measurements at selected points inside the heat flux meter, the heat flux absorbed by the water-wall, heat transfer coefficient on the inner tube surface and temperature of the water-steam mixture was determined.

Słowa kluczowe

EN

CFD simulation; heat flux measurement; inverse heat conduction problem; slagging of combustion chambers; steam boiler

PL

kocioł parowy; odwrotne zagadnienie przewodzenia ciepła; pomiar strumienia ciepła; żużlowanie komory paleniskowej

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2011
• Tom: Vol. 32, no. 3
• Strony: 103--116
• Opis fizyczny: Bibliogr. 20 poz.,

Twórcy

autor

Taler J.

autor

Taler D.

autor

Sobota T.

autor

Dzierwa P.

• Cracow University of Technology, Department of Thermal Power Engineering, al. Jana Pawła II 37, 31-864 Cracow, Poland,

Bibliografia

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