last modified: 21-JUL-1993 | catalog | categories | new | search |

CSNI1013 NEPTUN/5052

NEPTUN/5052, PWR LOCA Cooling Heat Transfer Tests for Loft, Reflood Test

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1. NAME OR DESIGNATION:  NEPTUN/5052.
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2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
NEPTUN/5052 CSNI1013/01 Arrived 21-JUL-1993

Machines used:

Package ID Orig. computer Test computer
CSNI1013/01 Many Computers
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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.
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4. DESCRIPTION OF TEST

Test 5052 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 = 2.5 cm/sec
            subcooling temperature = 78C
            single rod power = 2.45 kW
            maximal initial cladding temperature = 867C.
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9. STATUS
Package ID Status date Status
CSNI1013/01 21-JUL-1993 Arrived at NEADB
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10. REFERENCES
CSNI1013/01, included references:
- 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)
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11. TEST DESIGNATION:  5052.
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12. PROGRAMMING LANGUAGE(S) USED
No specified programming language
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15. ESTABLISHMENT

      M. Richner, G.Th. Analytis, S.N. Aksan
      Paul Scherrer Institute
      5232-VILLIGEN PSI
      Switzerland
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16. MATERIAL AVAILABLE
CSNI1013/01
CCVM data        mag tapeReflood test 5052  (685,920 bytes)         CVMTP
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17. CATEGORIES
  • Y. Integral Experiments Data, Databases, Benchmarks

Keywords: data, loss-of-coolant accident, reflooding, transients.