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Condensation driven water hammer studies for feedwater distribution pipe

Abstract

Imatran Voima Oy, IVO, operates two VVER 440 reactors. Unit 1 has been operating since 1977 and unit 2 since 1981. First damages of the feed water distribution (FWD) pipes were observed in 1989. In closer examinations FWD-pipe T-connection turned out to suffer from severe erosion corrosion damages. Similar damages have been found also in other VVER 440 type NPPs. In 1994 the first new FWD-pipe was replaced and in 1996 extensive water hammer experiments were carried out together with EDO Gidropress in Podolsk. After the first phase of the experiments some fundamental changes were made to the construction of the FWD-pipe. The object of this paper is to give short insight to the design of the new FWD-pipe concentrating on water hammer experiments. (orig.).
Authors:
Savolainen, S; Katajala, S; Elsing, B; Nurkkala, P; Hoikkanen, J; [1]  Pullinen, J; [2]  Logvinov, S A; Trunov, N B; Sitnik, J K [3] 
  1. Imatran Voima Oy, Vantaa (Finland)
  2. IVO Power Engineering Ltd., Vantaa (Finland)
  3. EDO Gidropress (Russian Federation)
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
LTKK-TJ-67; CONF-9703151-
Reference Number:
SCA: 210200; 360105; PA: AIX-29:024687; EDB-98:048862; SN: 98001958628
Resource Relation:
Conference: 4. international seminar on horizontal steam generators, Lappeenranta (Finland), 11-13 Mar 1997; Other Information: PBD: 1997; Related Information: Is Part Of Fourth international seminar on horizontal steam generators; Tuomisto, H. [ed.] [IVO Group, Vantaa (Finland)]; Purhonen, H. [ed.] [VTT, Espoo (Finland)]; Kouhia, V. [ed.] [Lappeenranta Univ. of Technology (Finland)]; PB: 305 p.
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; 36 MATERIALS SCIENCE; CORROSION; FEEDWATER; PIPES; REACTOR SAFETY EXPERIMENTS; STEAM GENERATORS; TEST FACILITIES; WATER HAMMER; WWER TYPE REACTORS
OSTI ID:
605582
Research Organizations:
Lappeenranta Univ. of Technology (Finland).
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE98621567; ISBN 951-764-189-3; TRN: FI9800036024687
Availability:
INIS; OSTI as DE98621567
Submitting Site:
FIN
Size:
pp. 169-188
Announcement Date:

Citation Formats

Savolainen, S, Katajala, S, Elsing, B, Nurkkala, P, Hoikkanen, J, Pullinen, J, Logvinov, S A, Trunov, N B, and Sitnik, J K. Condensation driven water hammer studies for feedwater distribution pipe. Finland: N. p., 1997. Web.
Savolainen, S, Katajala, S, Elsing, B, Nurkkala, P, Hoikkanen, J, Pullinen, J, Logvinov, S A, Trunov, N B, & Sitnik, J K. Condensation driven water hammer studies for feedwater distribution pipe. Finland.
Savolainen, S, Katajala, S, Elsing, B, Nurkkala, P, Hoikkanen, J, Pullinen, J, Logvinov, S A, Trunov, N B, and Sitnik, J K. 1997. "Condensation driven water hammer studies for feedwater distribution pipe." Finland.
@misc{etde_605582,
title = {Condensation driven water hammer studies for feedwater distribution pipe}
author = {Savolainen, S, Katajala, S, Elsing, B, Nurkkala, P, Hoikkanen, J, Pullinen, J, Logvinov, S A, Trunov, N B, and Sitnik, J K}
abstractNote = {Imatran Voima Oy, IVO, operates two VVER 440 reactors. Unit 1 has been operating since 1977 and unit 2 since 1981. First damages of the feed water distribution (FWD) pipes were observed in 1989. In closer examinations FWD-pipe T-connection turned out to suffer from severe erosion corrosion damages. Similar damages have been found also in other VVER 440 type NPPs. In 1994 the first new FWD-pipe was replaced and in 1996 extensive water hammer experiments were carried out together with EDO Gidropress in Podolsk. After the first phase of the experiments some fundamental changes were made to the construction of the FWD-pipe. The object of this paper is to give short insight to the design of the new FWD-pipe concentrating on water hammer experiments. (orig.).}
place = {Finland}
year = {1997}
month = {Dec}
}