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[Program Service | Recent programs]

CSNI1012 NEPTUN/5050. (Abstract last modified 21-JUL-1993)


NEPTUN/5050, PWR LOCA Cooling Heat Transfer Tests for Loft, Reflood Test

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Abstract Table of Contents:

NAME | COMPUTER | PROBLEM | SOLUTION | RESTRICTIONS | CPU | FEATURES | AUXILIARIES | STATUS | REFERENCES | REQUIREMENTS | LANGUAGE | OPERATING SYSTEM | OTHER RESTRICTIONS | AUTHOR | MATERIAL | CATEGORIES |

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1. NAME OR DESIGNATION - NEPTUN/5050.


2. COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -

To request or retrieve programs click on the one of the active versions below. A password and special authorization is required.

Explanation of the status codes.

Program-name         Package-ID  Status
NEPTUN/5050          CSNI1012/01 Arrived

Machines used:
Package-ID     Orig.Computer                       Test Computer
CSNI1012/01    Many Computers                      

3. DESCRIPTION OF TEST FACILITY - NEPTUN is designed to perform PWR LOCA simulation experiments, which provide the full length emergency cooling heat transfer tests for LOFT. Therefore the NEPTUN heater bundle with 33 electrical heater elements and 4 guide tubes simulates a section of the LOFT nuclear core. The main test loop also contains measuring systems for the carry-over rate and for the steam expelled, and a backpressure control system. A water loop brings the water to the initial reflooding conditions. In addition, auxiliary systems maintain normal operating conditions.


4. DESCRIPTION OF TEST - Test 5050 is one of a series of 40 reflood tests performed in NEPTUN. Before the start of the test, the flooding water in its circuit is brought to the following conditions:
            pressure = 4.1 bar
            velocity = 15.0 cm/sec
            subcooling temperature = 78C
            single rod power = 2.45 kW
            maximal initial cladding temperature = 867C.


9. STATUS
CSNI1012/01: 21-JUL-1993 Arrived at NEADB


10. REFERENCES  - 
CSNI1012/01:
- H. Gruetter, F. Stierli, S.N. Aksan, G. Varadi:
  Neptun Bundle Reflooding Experiments: Test Facility Description
  EIR Bericht Nr. 386, March 1980
- NEPTUN Tape Content
- M. Richner, G.Th. Analytis and S.N. Aksan:
  Assessment of RELAP5/MOD2, Cycle 36.02, Using NEPTUN
  Reflooding Experimental Data
  NUREG/IA-0054 (August 1992)


11. TEST DESIGNATION - 5050.


12. PROGRAMMING LANGUAGE -CSNI1012/01: 


15. ESTABLISHMENT -
      M. Richner, G.Th. Analytis, S.N. Aksan
      Paul Scherrer Institute
      5232-VILLIGEN PSI
      Switzerland


16. MATERIAL AVAILABLE -CSNI1012/01:
Reflood test 5050  (521,280 bytes)         


17. CATEGORIES  - 

- Y. Integral Experiments Data, Databases, Benchmarks


Keywords: DATA, LOSS-OF-COOLANT ACCIDENT, REFLOODING, TRANSIENTS

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