Titlebook: Simulation of Large State Variations in Steam Power Plants; Dynamics of Large Sc Richard Dole?al Book 1987 Springer-Verlag Berlin, Heidelbe

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ltete Nase ferngehalten, oft versagt der Schutz aber, nur ein Teil des Staubs, der vielleicht Krankheitskeime mit sich führt, bleibt an der klebrigen Nasenschleimhaut h?ngen, ein Teil dringt weiter in die Tiefe vor. Dann tritt die Tracheitis nicht für sich allein auf, sondern in Gesellschaft mit ein

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Simulation of Large State Variations in Steam Power PlantsDynamics of Large Sc

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The Dynamic Behaviour of a Two-Flow Heat ExchangerThe hot (.) and cold (.) flows through the heat exchanger ducts are separated by a common wall, which forms the heat-exchange surface. An infinitesimal element of such a heat exchanger is shown in Figure 3.1.

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Two Flow Heat Exchanger with a One-Phase Compressible Working Medium FlowDuring unsteady processes, whenever the working medium is compressible, the heat and mass are accumulated simultaneously in the heat exchanger. The mass flows are also heat carriers. Therefore their mass, momentum and energy balances (together with the heat balance of the wall) determine the transient behaviour of the heat exchanger.

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Model of the Steam Generator and the Power Generating UnitIn the subsequent chapters, the application of the previously described simulation technique to large scale systems such as the steam generator and the power generating unit (PGU) is presented. The splitting up of the power generating unit as a system into subsystems, then into modules, and then into segments is illustrated in Figure 10.1.