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Parametric studies to establish natural circulation in advanced heavy water reactor

Abstract

Design of Advanced Heavy Water Reactor (AHWR) is in progress. It consists of vertical pressure tubes with boiling light water coolant flowing through the tubes and heavy water moderator in the calandria. In PHWRs, core heat removal is through forced circulation of the coolant by PHT pumps. In AHWR, no PHT pumps are used and core heat is carried away by natural circulation of the coolant due to density difference between steam/water mixture inside the core and the water region outside the core. This passive means of core heat removal results in a number of benefits viz. (a) extra length of piping, valves, instruments, power supply and control systems for functioning of instruments are eliminated, (b) plant layout is simplified, (c) maintenance of valves and instruments is reduced. Natural circulation in AHWR is achieved by keeping the steam drum at a sufficient height above the core to get the required driving force. The loop height depends on many factors i.e. channel power, V{sub c}/V{sub f} ratio (ratio of coolant volume to fuel volume) and core height. The effect of these parameters on the loop height to establish natural circulation have been studied and presented. (author). 1 ref., 1 fig., 1  More>>
Authors:
Bhatia, S K; Dhawan, M L [1] 
  1. Reactor Engineering Division, Bhabha Atomic Research Centre, Mumbai (India)
Publication Date:
Jun 01, 1994
Product Type:
Conference
Report Number:
CONF-9406439-
Reference Number:
SCA: 210400; PA: AIX-29:018143; EDB-98:048924; SN: 98001952201
Resource Relation:
Conference: ACE-94: advances in chemical engineering in nuclear and process industries, Mumbai (India), 9-11 Jun 1994; Other Information: DN: 1 ref., 1 fig., 1 tab.; PBD: Jun 1994; Related Information: Is Part Of Advances in chemical engineering in nuclear and process industries; PB: 628 p.
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; FLOWSHEETS; HWLWR TYPE REACTORS; NATURAL CONVECTION; POWER RANGE 100-1000 MW; PRESSURE TUBES; PRIMARY COOLANT CIRCUITS; REACTOR CHANNELS; REACTOR CORES; SPECIFICATIONS; STEAM GENERATORS
OSTI ID:
591977
Research Organizations:
Board of Research in Nuclear Sciences, Department of Atomic Energy, Mumbai (India).
Country of Origin:
India
Language:
English
Other Identifying Numbers:
TRN: IN9800256018143
Submitting Site:
INIS
Size:
pp. 95-99
Announcement Date:
Jan 23, 2004

Citation Formats

Bhatia, S K, and Dhawan, M L. Parametric studies to establish natural circulation in advanced heavy water reactor. India: N. p., 1994. Web.
Bhatia, S K, & Dhawan, M L. Parametric studies to establish natural circulation in advanced heavy water reactor. India.
Bhatia, S K, and Dhawan, M L. 1994. "Parametric studies to establish natural circulation in advanced heavy water reactor." India.
@misc{etde_591977,
title = {Parametric studies to establish natural circulation in advanced heavy water reactor}
author = {Bhatia, S K, and Dhawan, M L}
abstractNote = {Design of Advanced Heavy Water Reactor (AHWR) is in progress. It consists of vertical pressure tubes with boiling light water coolant flowing through the tubes and heavy water moderator in the calandria. In PHWRs, core heat removal is through forced circulation of the coolant by PHT pumps. In AHWR, no PHT pumps are used and core heat is carried away by natural circulation of the coolant due to density difference between steam/water mixture inside the core and the water region outside the core. This passive means of core heat removal results in a number of benefits viz. (a) extra length of piping, valves, instruments, power supply and control systems for functioning of instruments are eliminated, (b) plant layout is simplified, (c) maintenance of valves and instruments is reduced. Natural circulation in AHWR is achieved by keeping the steam drum at a sufficient height above the core to get the required driving force. The loop height depends on many factors i.e. channel power, V{sub c}/V{sub f} ratio (ratio of coolant volume to fuel volume) and core height. The effect of these parameters on the loop height to establish natural circulation have been studied and presented. (author). 1 ref., 1 fig., 1 tab.}
place = {India}
year = {1994}
month = {Jun}
}