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Process systems of PHWR - Indian experience

Abstract

Three operational problems are discussed in this paper. The reactors in Madras Atomic Power Station (MAPS), India are Pressurised Heavy Water Reactors PHWR), similar to Douglas Point PGS. The moderator heavy water is pumped into the bottom half of the calandria (horizontal reactor vessel) through one inlet manifold plenum chamber and horizontal louvers which help to distribute the moderator evenly at a very low velocity. The outlet from the calandria is through a smaller manifold structure at a higher elevation. The moderator is held on the shell side of the calandria by means of helium gas pressure differential between top of calandria and dump tank located below. The primary coolant system consists of 306 coolant channels containing the fuel and steam generators (SGs) and pumps on either side of the reactor. Each SC consists of 11 Nos. inverted U tube vertical heat exchangers where heat is transferred from primary coolant heavy water to secondary light water to produce steam. (author)
Authors:
Ramandan, T S.V. [1] 
  1. Madras Atomic Power Station (MAPS), Madras (India)
Publication Date:
Apr 01, 1991
Product Type:
Conference
Report Number:
INIS-XA-N-171
Resource Relation:
Conference: 2. PHWR operating safety experience meeting, Embalse, Cordoba (Argentina), 3-5 Apr 1991; Other Information: 13 figs; PBD: Apr 1991; Related Information: In: Proceedings of 2nd PHWR operating safety experience meeting, 810 pages.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; COVER GAS; HEAT EXCHANGERS; HELIUM; PHWR TYPE REACTORS; PRIMARY COOLANT CIRCUITS; REACTOR OPERATION; REACTOR VESSELS; STEAM GENERATORS
OSTI ID:
20482997
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); Comision Nacional de Energia Atomica, Buenos Aires (Argentina); CANDU Owners Group, North York, ON (Canada)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA04N1287055668
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
28 pages
Announcement Date:

Citation Formats

Ramandan, T S.V. Process systems of PHWR - Indian experience. IAEA: N. p., 1991. Web.
Ramandan, T S.V. Process systems of PHWR - Indian experience. IAEA.
Ramandan, T S.V. 1991. "Process systems of PHWR - Indian experience." IAEA.
@misc{etde_20482997,
title = {Process systems of PHWR - Indian experience}
author = {Ramandan, T S.V.}
abstractNote = {Three operational problems are discussed in this paper. The reactors in Madras Atomic Power Station (MAPS), India are Pressurised Heavy Water Reactors PHWR), similar to Douglas Point PGS. The moderator heavy water is pumped into the bottom half of the calandria (horizontal reactor vessel) through one inlet manifold plenum chamber and horizontal louvers which help to distribute the moderator evenly at a very low velocity. The outlet from the calandria is through a smaller manifold structure at a higher elevation. The moderator is held on the shell side of the calandria by means of helium gas pressure differential between top of calandria and dump tank located below. The primary coolant system consists of 306 coolant channels containing the fuel and steam generators (SGs) and pumps on either side of the reactor. Each SC consists of 11 Nos. inverted U tube vertical heat exchangers where heat is transferred from primary coolant heavy water to secondary light water to produce steam. (author)}
place = {IAEA}
year = {1991}
month = {Apr}
}