HTGR-GT primary coolant transient resulting from postulated turbine deblading

Conference · Sat Nov 01 00:00:00 EST 1980

OSTI ID:6688669

Cadwallader, G. J.; Deremer, R. K.

The turbomachine is located within the primary coolant system of a nuclear closed cycle gas turbine plant (HTGR-GT). The deblading of the turbine can cause a rapid pressure equilibration transient that generates significant loads on other components in the system. Prediction of and design for this transient are important aspects of assuring the safety of the HTGR-GT. This paper describes the adaptation and use of the RATSAM program to analyze the rapid fluid transient throughout the primary coolant system during a spectrum of turbine deblading events. Included are discussions of (1) specific modifications and improvements to the basic RATSAM program, which is also briefly described; (2) typical results showing the expansion wave moving upstream from the debladed turbine through the primary coolant system; and (3) the effect on the transient results of different plenum volumes, flow resistances, times to deblade, and geometries that can choke the flow.

• Research Organization: General Atomic Co., San Diego, CA (USA)
• DOE Contract Number: AT03-76SF70046
• OSTI ID: 6688669
• Report Number(s): GA-A-16027; CONF-810309-3; TRN: 81-002985
• Resource Relation: Conference: ASME gas turbine conference, Houston, TX, USA, 9 Mar 1981
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
GAS TURBINES
FAILURES
HTGR TYPE REACTORS
REACTOR SAFETY
COMPUTER CODES
HELIUM COOLED REACTORS
PRIMARY COOLANT CIRCUITS
R CODES
TRANSIENTS
TURBINE BLADES
COOLING SYSTEMS
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
MACHINERY
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
SAFETY
TURBINES
TURBOMACHINERY
220900* - Nuclear Reactor Technology- Reactor Safety
210300 - Power Reactors
Nonbreeding
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