CSNI1028: IVO/AIR-WATER-CCFL, Air/water countercurrent flow limitation experiments with full-scale fuel bundle structures

OECD Nuclear Energy Agency / L'Agence pour l'énergie nucléaire

OECD-OCDE

[Program Service | Recent programs]

CSNI1028 IVO/AIR-WATER-CCFL. (Abstract last modified 01-JAN-1989)

IVO/AIR-WATER-CCFL, Air/water countercurrent flow limitation experiments with full-scale fuel bundle structures

Abstract Table of Contents:

OPERATING SYSTEM

OTHER RESTRICTIONS

1. NAME OF EXPERIMENT - IVO/AIR-WATER-CCFL.

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 IVO/AIR-WATER-CCFL CSNI1028/01 Report

Machines used: Package-ID Orig.Computer Test Computer CSNI1028/01 Many Computers

3. DESCRIPTION OF TEST FACILITY - The test facility consists of a vertical flow channel with different internals. The test section was principally made of transparent acrylic material to allow visual observations. One fuel bundle top area structure of the Soviet-type pressurized water reactors VVER-1000 and VVER-440 in full scale was the principal test section. In order to get experimental data on the effects of different parameters on the CCFL behaviour, various configurations of the principal test sections were studied. Plate 1 corresponds to the perforated upper tie plate in full scale of the reactor VVER-1000 and placte 12 to the upper tie plate in full scale of the reactor VVER-440.

4. DESCRIPTION OF TEST - The procedure of the model tests consisted of establishing the air inlet flow rate and then increasing the water flow rate so that the given liquid head above the perforated plate, or above the fuel rod bundle when the flow channel provided only with the bundle was reached. After the stationary conditions maintained for a prolonged period, the injected water and air flows, and the average height of the mixture level above the perforated plate were registered. All reported air and water flow rates are average values at each test point. The distance of the water inlet from the perforated plate was 2000 mm, and the water level in the water collection chamber was kept constant.
Small-size plates were tested. Also the effect of the unheated fuel rod buncle and the size of the free flow channel on the CCFL behaviour were studied.

6. PHENOMENA TESTED - Discuss the influence of the flow restrictions in vertical flow channels, like a perforated upper tie plate and a fuel rod bundle below the tie plate, on the countercurrent flow behaviour of air and water.

9. STATUS
CSNI1028/01: 01-JAN-1989 Report Only

10. REFERENCES  -
CSNI1028/01:
-  I. Kokkonen
Air/water countercurrent flow limitation experiments with full-scale fuel
bundle structures
IVO Research reports IVO-A-07/89
-  Kokkonen, H. Tuomisto
Air/water countercurrent flow limitation experiments with full-scale fuel
bundle structures
Reprint from: Experimental therapy and fluid science, Volume 3, Number 6,
November 1990

11. TEST DESIGNATION - Air/water CCFL.

12. PROGRAMMING LANGUAGE -CSNI1028/01:

15. ESTABLISHMENT -
Imatran Voima Oy
Power Plant Division
Helsinki, Finland

16. MATERIAL AVAILABLE -CSNI1028/01:
Documentation in electronic format

17. CATEGORIES -

- Y. Integral Experiments Data, Databases, Benchmarks

Keywords: AIR, COUNTER CURRENT, FUEL BUNDLE, FULL-SCALE, WATER

Home - About Us - Work Areas - Data Bank - Publications - Press Room - List of acronyms - Search