کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1729246 1521160 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Model development and simulation of transient behavior of helium turbine system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Model development and simulation of transient behavior of helium turbine system
چکیده انگلیسی

This paper describes a performance model for the transient analysis of helium turbine system. Governing equations have been derived from integral forms of unsteady basic conservation equations. The one-dimensional model is employed for flow-paths except turbine and compressor, which are considered as zero-dimensional components and volume-less treatment is employed. Component mathematical model results in a set of ordinary differential equations and algebraic equations. The simulation code is established on MATLAB, and the ordinary differential equations are solved a variable order solver of MATLAB, ode15s. The accidents of loss of load and loss of feedwater to precooler and intercooler, the transients of recuperator and the decreasing heat transfer capacity of intermediate heat exchanger are simulated respectively. The analysis of calculated results verifies the present model. The effects of bypass valve size and thermal inertia of the recuperator wall are also studied. The simulation results show that throttle size of bypass valve has important influence on the characteristics of turbine system and should be carefully selected to satisfy the requirement of system control and safety.


► This paper describes a performance model for the transient analysis of helium turbine system.
► The one-dimensional model is employed for flowpath except turbine and compressor.
► The simulation code is established on MATLAB.
► Four transients and accidents are simulated.
► The analysis of calculated results validates the present model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Nuclear Energy - Volume 38, Issue 12, December 2011, Pages 2797–2805
نویسندگان
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