Testing a Passive Autocatalytic Recombiner in the Surtsey Facility
Performance tests of a scaled passive autocatalytic recombine (PAR) were performed in the Surtsey test vessel at Sandia National Laboratories. Measured hydrogen depletion rate data were obtained and compared with previous work. Depletion rate is most likely proportional to PAR scale. PAR performance...
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Sandia National Laboratories
1999
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ftunivnotexas:info:ark/67531/metadc779320 2023-05-15T18:29:14+02:00 Testing a Passive Autocatalytic Recombiner in the Surtsey Facility Blanchat, Thomas K. Malliakos, Asimios United States. Department of Energy. 1999-07-01 27 p. Text https://digital.library.unt.edu/ark:/67531/metadc779320/ English eng Sandia National Laboratories rep-no: SAND99-1679J grantno: AC04-94AL85000 osti: 8480 https://digital.library.unt.edu/ark:/67531/metadc779320/ ark: ark:/67531/metadc779320 Journal Name: Nuclear Technology; Other Information: Submitted to Nuclear Technology A Centers Flow Rate 08 Hydrogen 36 Materials Science Oxygen Catalysts Recombiners Recombination Velocity Testing Hydrogen Performance Article 1999 ftunivnotexas 2017-04-15T22:07:38Z Performance tests of a scaled passive autocatalytic recombine (PAR) were performed in the Surtsey test vessel at Sandia National Laboratories. Measured hydrogen depletion rate data were obtained and compared with previous work. Depletion rate is most likely proportional to PAR scale. PAR performance in steamy environments (with and without hydrophobic coating) was investigated. The tests determined that the PAR startup delay times decrease with increasing hydrogen concentrations in steamy environments. Tests with placement of the PAR near a wall (as opposed to a center location) yielded reduced depletion rates. Tests at low oxygen concentrations also showed a reduced recombination rate. The PAR repeatedly ignited hydrogen at about 6 mol% concentration with a catalyst temperature near 940 K. Velocity data at the PAR exhaust were used to calculate the volumetric flow rate through the PAR as a function of the vessel hydrogen concentration. Article in Journal/Newspaper Surtsey University of North Texas: UNT Digital Library Surtsey ENVELOPE(-20.608,-20.608,63.301,63.301) |
institution |
Open Polar |
collection |
University of North Texas: UNT Digital Library |
op_collection_id |
ftunivnotexas |
language |
English |
topic |
A Centers Flow Rate 08 Hydrogen 36 Materials Science Oxygen Catalysts Recombiners Recombination Velocity Testing Hydrogen Performance |
spellingShingle |
A Centers Flow Rate 08 Hydrogen 36 Materials Science Oxygen Catalysts Recombiners Recombination Velocity Testing Hydrogen Performance Blanchat, Thomas K. Malliakos, Asimios Testing a Passive Autocatalytic Recombiner in the Surtsey Facility |
topic_facet |
A Centers Flow Rate 08 Hydrogen 36 Materials Science Oxygen Catalysts Recombiners Recombination Velocity Testing Hydrogen Performance |
description |
Performance tests of a scaled passive autocatalytic recombine (PAR) were performed in the Surtsey test vessel at Sandia National Laboratories. Measured hydrogen depletion rate data were obtained and compared with previous work. Depletion rate is most likely proportional to PAR scale. PAR performance in steamy environments (with and without hydrophobic coating) was investigated. The tests determined that the PAR startup delay times decrease with increasing hydrogen concentrations in steamy environments. Tests with placement of the PAR near a wall (as opposed to a center location) yielded reduced depletion rates. Tests at low oxygen concentrations also showed a reduced recombination rate. The PAR repeatedly ignited hydrogen at about 6 mol% concentration with a catalyst temperature near 940 K. Velocity data at the PAR exhaust were used to calculate the volumetric flow rate through the PAR as a function of the vessel hydrogen concentration. |
author2 |
United States. Department of Energy. |
format |
Article in Journal/Newspaper |
author |
Blanchat, Thomas K. Malliakos, Asimios |
author_facet |
Blanchat, Thomas K. Malliakos, Asimios |
author_sort |
Blanchat, Thomas K. |
title |
Testing a Passive Autocatalytic Recombiner in the Surtsey Facility |
title_short |
Testing a Passive Autocatalytic Recombiner in the Surtsey Facility |
title_full |
Testing a Passive Autocatalytic Recombiner in the Surtsey Facility |
title_fullStr |
Testing a Passive Autocatalytic Recombiner in the Surtsey Facility |
title_full_unstemmed |
Testing a Passive Autocatalytic Recombiner in the Surtsey Facility |
title_sort |
testing a passive autocatalytic recombiner in the surtsey facility |
publisher |
Sandia National Laboratories |
publishDate |
1999 |
url |
https://digital.library.unt.edu/ark:/67531/metadc779320/ |
long_lat |
ENVELOPE(-20.608,-20.608,63.301,63.301) |
geographic |
Surtsey |
geographic_facet |
Surtsey |
genre |
Surtsey |
genre_facet |
Surtsey |
op_source |
Journal Name: Nuclear Technology; Other Information: Submitted to Nuclear Technology |
op_relation |
rep-no: SAND99-1679J grantno: AC04-94AL85000 osti: 8480 https://digital.library.unt.edu/ark:/67531/metadc779320/ ark: ark:/67531/metadc779320 |
_version_ |
1766212073349447680 |