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HomeNRC LibraryDocument          CollectionsNUREG-Series          PublicationsPublications          Prepared by NRC Contractors

# Hydrogen-Steam Jet-Flame Facility and Experiments (NUREG/CR-3638,  SAND84-0060)        						

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                - Publication Information
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                - NUREG/CR-3638          (PDF - 4.84 MB)

## Publication Information

**Manuscript Completed**: October 1984****Date Published****: May 1985

**Prepared by:**Joseph E. ShepherdFluid Mechanics and Heat  TransferDivision 1512Sandia National LaboratoriesAlbuquerque. New Mexico 87185Operated by Sandia Corporation for the U.S.  Department of EnergyUnder Contract No. DE-AC04-76DP00789 

**Prepared for**:Division of Engineering Technology and Division of Accident EvaluationOffice of Nuclear Regulatory ResearchU.S. Nuclear  Regulatory CommissionWashington. DC 20555-0001 

        Under   Memorandum of Understanding DOE-40-550-75

        NRC FIN A-1246, A-1336

Availability       Notice

## Abstract

This report provides results from an in-depth analysis of twenty-one of the   twenty-four premixed large-scale combustion experiments sponsored by the U. S.   Nuclear Regulatory Commission (NRC) and the Electric Power Research Institute   (EPRI) and conducted by EG&G at the Nevada Test Site (NTS). These   experiments were performed in a 2048 cubic meter spherical vessel (hydrogen   dewar) with mixtures of hydrogen, steam, and air ignited by glow plugs or heated   resistance coils. Hydrogen concentrations ranged from 5 to 13% (by volume) and   steam concentrations from 4 to 40%. Several tests also incorporated spray   systems and/or fans which enhanced the combustion rate and significantly altered   the postcombustion gas cooling.

In this work, data provided by EPRI from instrumentation designed to   characterize the tlhermal environment in the dewar during and following   combustion have been evaluated. The data reduction package SMOKE has been used   to process data from thin-film gauges, Gardon and Schmidt-Boelter heat flux   gauges, capacitance calorimeters, gas and wall thermocouples, and pressure   sensors. Local measurements of the heat transfer are provided from the   calorimetry, and global averages are inferred from the pressure. Instrumentation   "goodness" for each test is assessed based on the raw data and on comparisons-of   local and global results. Graphical and tabular results are provided for each   test, and trends observed from the results are reported. This information should   be useful for benchmarking existing computer codes used in modeling nuclear   containment and associated safety-related equipment response to degraded-core   accidents and for improving combustion and heat transfer models currently used   in these computer simulations.

*Page Last Reviewed/Updated Monday, March 21, 2011*

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