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

100%

Taler J. , Trojan M.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

2008

tom Vol. 323, z. 60

231-232

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.

Modele zewnętrzne i wewnętrzne w interaktywnej optymalizacji wizualnej w trybie bezpośrednim

84%

Makles K.

Metody Informatyki Stosowanej

2010

tom nr 4 (24)

81-91

The article describes the external and internal models used in on-line interactive optimization. This type of optimization, in fact of increasing computing power of modem computers, allows to solve incompletely determined optimization problems. The application of interactive optimization for linem' and nonlinear tasks is shown. Describes the internal model proposed for use in interactive optimization, along with examples of its construction. Indicated a general scheme of searching for the optimal solutlon for interactive optimization in on-line mode.

Stabilność i zbieżność modelu gradientowego w interaktywnej optymalizacji wizualnej w trybie bezpośrednim

67%

Makles K.

Metody Informatyki Stosowanej

2011

tom nr 4

135-146

The article describes the stability and convergence criterion of linear gradient internal model used in on-line interactive optimization. This type of optimization, in fact of increasing computing power of modern computers, allows to solve incompletely determined optimization problems. Stability and convergence of the linear gradient model was discused for three cases: when searching point moving from the forbidden into the allowed area, when searching point moving in the allowed area, and whensearching point moving from the allowed into the forbidden area.