Experimental study of small and medium break LOCA in the TTL-2 thermo-hydraulic test loop and its modeling with RELAP5/MOD3.2 code

Taherzadeh, M ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. Publisher: 2010
  3. Abstract:
  4. Small and medium break LOCA accidents at low pressure and under low velocity conditions have been studied in the TTL-2 Thermo-hydraulic Test Loop, experimentally. TTL-2 is a thermal hydraulic test facility which is designed and constructed in NSTRI to study thermal hydraulic parameters under normal operational and accident conditions of nuclear research reactors. A nodalization has been developed for the TTL-2 and experimental results have been compared with RELAP5/MOD3.2 results. The considered accidents are a 25% and 50% cold leg break without emergency core cooling systems. Results show good agreement between experiments and RELAP5/MOD3.2 results. This research provides experimental data for evaluation of thermo hydraulic codes for nuclear research reactors, and verifies that RELAP5/MOD3.2 has a good capability to estimate the thermal hydraulic behavior of low pressure and low velocity thermal hydraulic systems, such as research reactors under steady state and transient conditions
  5. Keywords:
  6. Ttl-2 thermal hydraulic test loop ; Code validation ; Experimental results ; LOCA ; RELAP5/MODS.2 ; Thermal hydraulic tests ; Accidents ; Beam plasma interactions ; Cooling systems ; Hydraulic equipment ; Loss of coolant accidents ; Nuclear engineering ; Research ; Research reactors ; Testing ; Transients ; Hydraulics ; Experimental study ; Hydraulic head ; Velocity
  7. Source: Scientia Iranica ; Volume 17, Issue 6 B , NOVEMBER-DECEMBER , 2010 , Pages 492-501 ; 10263098 (ISSN)
  8. URL: http://en.journals.sid.ir/ViewPaper.aspx?ID=186706