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ORTURB: A Digital Computer Code to Determine the Dynamic Response of the Fort St. Vrain Reactor Steam Turbines

Technical Report ·
DOI:https://doi.org/10.2172/5053021· OSTI ID:5053021
 [1]
  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
ORTURB is a computer code written specifically to calculate the dynamic behavior of the Fort St. Vrain (FSV) High-Temperature Gas-Cooled Reactor (HTGR) steam turbines. The ORTURB program can be independently exercised but is intended to be used in the overall FSV plant simulator code ORTAP currently under development at Oak Ridge National Laboratory. ORTURB uses a relationship derived for ideal gas flow in an iterative fashion that minimizes computational time to determine the pressure and flow in the FSV steam turbines as a function of plant transient operating conditions. An important computer modeling characteristic, unique to FSV, is that the high-pressure turbine exhaust steam is used to drive the reactor core coolant circulators prior to entering the reheater. A feedwater heater dynamic simulation model utilizing seven state variables for each of the five heaters completes the ORTURB computer simulation of the regenerative Rankine cycle steam turbines.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; USNRC
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5053021
Report Number(s):
NUREG/CR--1789; ORNL/NUREG/TM--399; ON: TI86002670
Country of Publication:
United States
Language:
English