CORTAP predictions will be compared with dynamic test results obtained from the Fort St. Nonlinear effects introduced by temperature dependent fuel, moderator, and coolant properties are included in the model. For transients involving a reactor trip, the core heat generation rate is determined from an expression for decay heat following a scram.
#A S S S S S 0 80 7 1 23 3 6 9 A S CODE#
The more » code has the capability to determine conservative fuel, moderator, and coolant temperatures in the ''hot'' fuel region. The space independent neutron kinetics equations are coupled to the heat transfer equations through a rapidly converging iterative technique. The core thermal neutronic response is determined by solving the heat transfer equations for the fuel, moderator and coolant in an average powered region of the reactor core. CORTAP is used both as a stand-alone component simulation and as part of the HTGR nuclear steam supply (NSS) system simulation code ORTAP. « lessĬORTAP (Core Transient Analysis Program) was developed to predict the dynamic behavior of the High Temperature Gas Cooled Reactor (HTGR) core under normal operational transients and postulated accident conditions.
Transient problems involving materials with change-of-phase capabilities cannot be solved using the implicit technique with this version of HEATING5. The storage requirements on an IBM 360 machine range from approximately 250K bytes for one lattice point to 1256K bytes for 6000 lattice points. » Cubic meter/second Conversions: m3/sm3/d 1 m3/s 86400 m3/d. The maximum number of lattice points can be easily adjusted to fit the problem and the computer storage requirements. Show Liter/second Cubic meter/second Conversion Chart Instead. The code is designed to allow a maximum of 100 regions, 50 materials, and 50 boundary conditions. The mesh spacing can be variable along each axis. The boundary condition parameters may be time- and/or temperature-dependent. The boundary conditions, which may be surface-to-boundary or surface-to-surface, may be fixed temperatures or any combination of prescribed heat flux, forced convection, natural convection, more » and radiation. This is lower than the long term average of 1.85. S&P 500 Dividend Yield is at 1.29, compared to 1.38 last month and 1.80 last year. Heat generation rates may be dependent on time, temperature and position, and boundary temperatures may be time-dependent. After the financial crisis of 2008 the yield value decreased from a peak of 3.86 in 2008, to hovering around 2, on average, for the next 10 years. The thermal conductivity may be anisotropic. The thermal conductivity, density, and specific heat may be both spatially and temperature-dependent.
HEATING5, a modification of the generalized heat conduction code HEATING3, is designed to solve steady-state and/or transient heat conduction problems in one-, two-, or three-dimensional Cartesian or cylindrical coordinates or one-dimensional spherical coordinates.
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