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A Universal Mathematical Model for Single-Phase Heatd Tubes

Wang Zening;Zhou Qiangtai(Department of Power Engineering, Southeast University, Nanjing 210018)  
Based in nonlinear distributed-parameter modelling method, a universal mathematical nod-el for single-phase heated tubes is developed which is suitable for dynamic characteristic anaiysis and re-al-time simulation,With choosed appropriate number of control volume in the each esction of unitsand time step,the model can satisfy the need of aeeuracy and calculation speed. In the case of large time step taken in calculation,implicit difference scheme is adopted in the discreted algebraic equations to ensure the numerical stability of the model.
【CateGory Index】: TK172.4
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