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Technical report on management and replacement of heat exchanger in JRR-4

Technical Report:

Abstract

The corrosion conditions of the heat exchanger`s shell had been investigated by mean of ultrasonic test in JRR-4. According to the test conducted in 1990, it showed that the heat exchangers which were used since initial core criticality in 1965 would be corroded over the whole shell plates made of carbon steel by nearly limiting thickness of the pressure-proof strength in 1992, and then, the heat exchangers were replaced in 1991. At replacement works, the two test pieces were cut out from the old heat exchangers for the observation of corrosion condition, chemical analysis of the corrosion products and metallography examination of materials. These results were suggested the condition and depth of corrosion, and the validity of the replacement work was confirmed. This report describes the technical subject on management and replacement of the heat exchangers, including coolant management, design, manufacturing, installation, inspection and investigation of corrosion conditions. (author).
Authors:
Ohhashi, Nobuyoshi; Iida, Kenichi; Ueki, Nobuyuki; Hanawa, Hiroshi; Isaka, Masanori; Takayanagi, Masaji [1] 
  1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Publication Date:
Sep 01, 1994
Product Type:
Technical Report
Report Number:
JAERI-Tech-94-016
Reference Number:
SCA: 220600; PA: JPN-94:011231; EDB-95:007549; SN: 95001296265
Resource Relation:
Other Information: PBD: Sep 1994
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; JRR-4 REACTOR; HEAT EXCHANGERS; CORROSION; SHELLS; MANAGEMENT; MODIFICATIONS; DESIGN; MANUFACTURING; INSTALLATION; INSPECTION; 220600; RESEARCH, TEST, TRAINING, PRODUCTION, IRRADIATION, MATERIALS TESTING REACTORS
OSTI ID:
10102305
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE95722073; TRN: JP9411231
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
82 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Ohhashi, Nobuyoshi, Iida, Kenichi, Ueki, Nobuyuki, Hanawa, Hiroshi, Isaka, Masanori, and Takayanagi, Masaji. Technical report on management and replacement of heat exchanger in JRR-4. Japan: N. p., 1994. Web.
Ohhashi, Nobuyoshi, Iida, Kenichi, Ueki, Nobuyuki, Hanawa, Hiroshi, Isaka, Masanori, & Takayanagi, Masaji. Technical report on management and replacement of heat exchanger in JRR-4. Japan.
Ohhashi, Nobuyoshi, Iida, Kenichi, Ueki, Nobuyuki, Hanawa, Hiroshi, Isaka, Masanori, and Takayanagi, Masaji. 1994. "Technical report on management and replacement of heat exchanger in JRR-4." Japan.
@misc{etde_10102305,
title = {Technical report on management and replacement of heat exchanger in JRR-4}
author = {Ohhashi, Nobuyoshi, Iida, Kenichi, Ueki, Nobuyuki, Hanawa, Hiroshi, Isaka, Masanori, and Takayanagi, Masaji}
abstractNote = {The corrosion conditions of the heat exchanger`s shell had been investigated by mean of ultrasonic test in JRR-4. According to the test conducted in 1990, it showed that the heat exchangers which were used since initial core criticality in 1965 would be corroded over the whole shell plates made of carbon steel by nearly limiting thickness of the pressure-proof strength in 1992, and then, the heat exchangers were replaced in 1991. At replacement works, the two test pieces were cut out from the old heat exchangers for the observation of corrosion condition, chemical analysis of the corrosion products and metallography examination of materials. These results were suggested the condition and depth of corrosion, and the validity of the replacement work was confirmed. This report describes the technical subject on management and replacement of the heat exchangers, including coolant management, design, manufacturing, installation, inspection and investigation of corrosion conditions. (author).}
place = {Japan}
year = {1994}
month = {Sep}
}