Saha, Debdulal and Sengupta, Kamalendu (2007) High temperature humidity sensor for detection of leak through slits and cracks in pressurized nuclear power reactor pipes. Sensors & Transducers Journal, 77 (3). pp. 1025-1031. ISSN 1726- 5479

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Abstract

The leak before break (LBB) concept is well known to nuclear power reactor. The problem is common to water power reactor. This is based on the premise that a detectable leak will develop before catastrophic break occurs. The main purpose of the present study is to develop tape cast MgCr2O4+35mole% TiO2 and gel cast γ-Al2O3 humidity sensor for use in LBB applications at 3000C. The material capacitance varies with transient injection of water vapour adsorption. In actual plant, the sensors are placed on a steam pipe surrounded by heat insulation. The pipe unites the nuclear reactor and power generator. The analysis of humidity distribution in the annulus is calculated assuring leak rate 0.1gpm in a 30 m long tube. In this paper, analysis is done on the basis of the two types of sensor using AC frequency. Performance characteristics are observed for the LLB application.

Item Type:	Article
Uncontrolled Keywords:	High temperature moisture sensor; Tape cast; Nuclear power reactor
Subjects:	Electronics
Divisions:	Sensor and Actuator
Depositing User:	Bidhan Chaudhuri
Date Deposited:	15 Mar 2012 07:33
Last Modified:	15 Mar 2012 07:33
URI:	http://cgcri.csircentral.net/id/eprint/1229

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