Komputerowy układ do oceny w trybie on-line stopnia zanieczyszczenia powierzchni ogrzewalnych kotła

• Autorzy: Taler J. , Trojan M.
• Konferencja: XI Forum Energetyków GRE 2008/Międzynarodowa Konferencja Naukowo-Techniczna(19-21.05.2008;Orle Gniazdo Szczyrk,Polska)
• Języki publikacji: PL

Abstrakty

EN

The computer based boiler performance system, presented in this paper, has been developed to provide a direct and quantitative assessment of furnace and convective surface cleanliness. Temperature, pressure and flow measurements and gas analysis data are used to perform heat transfer analysis in the boiler furnace and evaporator. Power boiler efficiency is calculated using an indirect method. The on-line calculation of a combustion chamber allows for an on-line heat flow rate determination, which is transferred to the boiler evaporator. Based on the energy balance for the boiler evaporator, the superheated steam mass flow rate is calculated taking into the account water flow rate in attemperators. Comparing the calculated and the measured superheated steam mass flow rate, the effectiveness of combustion chamber waterwalls is determined in an on-line mode. Sootblower sequencing can be optimized based on actual cleaning requirements rather than on fixed time cycles contributing to lowering of the medium usage in soot blowers and increasing of the water-wall lifetime.

Słowa kluczowe

PL

tryb on-line; system monitorowania pracy kotła; zanieczyszczenie powierzchni ogrzewalnych kotłów

EN

computer based boiler performance system; on-line mode; furnace and convective surface cleanliness

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Elektryka / Politechnika Opolska
• Rocznik: 2008
• Tom: Vol. 323, z. 60
• Strony: 231--232
• Opis fizyczny: wykr.

Twórcy

autor

Taler J.

autor

Trojan M.

• Politechnika Krakowska, Katedra Maszyn i Urządzeń Energetycznych