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Experiments on mass transfer in a natural convection of high temperature gas mixture with graphite corrosion due to air ingress

Abstract

Experiments on mass transfer in a natural convection of gas mixture with graphite corrosion at high temperature due to air ingress have been performed to predict the thermohydraulic characteristics with high accuracy at the pipe rupture in a high temperature gas cooled reactor. The whole shape of the multi-channel test section is a reverse U shape. The one side of the reverse U shaped test section consists of two hot graphite channels and one cold metal channel which are parallel to each other. The inlet and outlet mole fractions of oxygen, carbon monoxide and carbon dioxide, the corrosion thickness of the graphite tube, the distribution of flow rates were measured under the various temperature conditions of graphite channels up to 1200degC. From these data, the relationship of Sherwood number and dimensionless distance from the inlet of the graphite channel have been obtained. It was found under the present experimental conditions that the maximum mole fraction of carbon monoxide at the outlet is 0.25% and the Sherwood numbers obtained are smaller than those calculated on assumption of analogy between heat and mass transfer. (author).
Authors:
Bing, Han; [1]  Ogawa, Masurou; Emori, Koichi; Hishida, Makoto
  1. Qinghua Univ., Beijing, BJ (China). Inst. of Nuclear Energy Technology
Publication Date:
Nov 01, 1992
Product Type:
Technical Report
Report Number:
JAERI-M-92-167
Reference Number:
SCA: 210300; PA: JPN-93:004121; SN: 93000987257
Resource Relation:
Other Information: PBD: Nov 1992
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; HTGR TYPE REACTORS; CORROSION; PIPES; RUPTURES; MASS TRANSFER; NATURAL CONVECTION; GRAPHITE; HYDRAULICS; THERMODYNAMICS; MIXTURES; HELIUM; OXYGEN; AIR; TEMPERATURE RANGE 1000-4000 K; 210300; POWER REACTORS, NONBREEDING, GRAPHITE MODERATED
OSTI ID:
10150627
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE93788384; TRN: JP9304121
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
130 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Bing, Han, Ogawa, Masurou, Emori, Koichi, and Hishida, Makoto. Experiments on mass transfer in a natural convection of high temperature gas mixture with graphite corrosion due to air ingress. Japan: N. p., 1992. Web.
Bing, Han, Ogawa, Masurou, Emori, Koichi, & Hishida, Makoto. Experiments on mass transfer in a natural convection of high temperature gas mixture with graphite corrosion due to air ingress. Japan.
Bing, Han, Ogawa, Masurou, Emori, Koichi, and Hishida, Makoto. 1992. "Experiments on mass transfer in a natural convection of high temperature gas mixture with graphite corrosion due to air ingress." Japan.
@misc{etde_10150627,
title = {Experiments on mass transfer in a natural convection of high temperature gas mixture with graphite corrosion due to air ingress}
author = {Bing, Han, Ogawa, Masurou, Emori, Koichi, and Hishida, Makoto}
abstractNote = {Experiments on mass transfer in a natural convection of gas mixture with graphite corrosion at high temperature due to air ingress have been performed to predict the thermohydraulic characteristics with high accuracy at the pipe rupture in a high temperature gas cooled reactor. The whole shape of the multi-channel test section is a reverse U shape. The one side of the reverse U shaped test section consists of two hot graphite channels and one cold metal channel which are parallel to each other. The inlet and outlet mole fractions of oxygen, carbon monoxide and carbon dioxide, the corrosion thickness of the graphite tube, the distribution of flow rates were measured under the various temperature conditions of graphite channels up to 1200degC. From these data, the relationship of Sherwood number and dimensionless distance from the inlet of the graphite channel have been obtained. It was found under the present experimental conditions that the maximum mole fraction of carbon monoxide at the outlet is 0.25% and the Sherwood numbers obtained are smaller than those calculated on assumption of analogy between heat and mass transfer. (author).}
place = {Japan}
year = {1992}
month = {Nov}
}