PRE--A PRESSURIZER TRANSIENT ANALYSIS PROGRAM FOR THE PHILCO 2000 COMPUTER

Technical Report · Thu Jun 01 04:00:00 EDT 1961

OSTI ID:4833866

Thomas, A W; Findlay, J A

The PRE program calculates the transient performance of pressurized water nuclear power plant pressurizers. The laws of conservation of energy and mass are applied to predict the pressure, masses, volumes, and energies within toe system. The pressurizer model used consists of four distinct fluid regions: steam; spray and condensate; active or main water; and the subcooled lower insurge water. In addition the transient heat conduction in the pressurizer wall caused by condensation of steam on its surface is calculated using a two-node, lumpsd parameter model. The performance of the pressurizer is a function of the initial conditions in the pressurizer, surge rates, surge enthalpies, spray fraction, spray efficiency, condensation of steam on the pressurizer wall, mixing of insurge water, heat transfer from the steam (isentropic, polyatropic or saturation compression process), heater input to the water and spray valve, and relief valve control. These are all items of input to the program. The surge and spray rates and enthalpies are entered in tabular form as functions of time. One of the input options utllizes temperatures as input rather than surges and enthalpies. (auth)

• Research Organization: Knolls Atomic Power Lab., Schenectady, N.Y.
• DOE Contract Number: W-31-109-ENG-52
• NSA Number: NSA-16-000297
• OSTI ID: 4833866
• Report Number(s): KAPL-M-EC-7
• Country of Publication: United States
• Language: English

Related Subjects

ANALOG SYSTEMS
COMPUTERS
EFFICIENCY
ENERGY
ENGINEERING AND EQUIPMENT
HEAT EXCHANGERS
MASS
PERFORMANCE
POWER PLANTS
PROGRAMMING
STEAM
TEMPERATURE
THERMODYNAMICS