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Applying the theory of capacitance measurement and capacitor working principle, a kind of capacitive steam humidity measurement system has been developed, which includes steam humidity adjusting system, external measuring circuit and steam humidity calibration system. Use this steam humidity measurement system; a kind of coaxial cylindrical capacitance sensor is studied. The results shows that, the...
It is well-known that, according to the dielectric theory, the static dielectric constants are quite distinct for the saturated water and its vapor at the same pressure and temperature. Therefore, based on it, the feasibility of using the capacitance method to measure the flowing steam wetness was explored. As air and water vapor have similar static dielectric constants, the wet steam was substituted...
A Wiener model with a series connection of a linear dynamic system followed by a static nonlinearity is proposed in this paper, based on extended MOESP (multivariable output-error state space) class of subspace model identification (SMI). Then a simple identification example is presented to validate the effectiveness of the algorithm.
This paper proposes a gasifier following-based coordinated control strategy for the IGCC power plant. The gasifier and the combined-cycle model are integrated to form the IGCC power plant model and a load and pressure controller is designed to reduce pressure variations with load changes. Simulation results show the good load-tracking property and satisfactory control performance of the proposed controller.
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