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Analysis of Diffusion Flame Tests (NUREG/CR-4534)

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Publication Information
Abstract

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NUREG/CR-4534 (PDF - 2.92 MB)

Publication Information

J. E. Shepherd
Printed August 1987

Sandia National Laboratories
Albuquerque, NM 87185
Operated by
Sandia Corporation for the
U. S. Department of Energy

Prepared for
Division of Reactor Accident Analysis
and
Division of Engineering
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555
Under Memorandum of Understanding DOE 40-550-75
NRC FIN Nos. A1246, A1336

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Abstract

This report discusses the results and analysis of hydrogen diffusion flame tests conducted at the Nevada Test Site by EPRI and the U. S. NRC. Those tests were designed to simulate the effects of hydrogen combustion inside a nuclear power plant containment following a degraded-core accident. Test initial conditions and sample data plots are given for 16 tests. Mixing and ignition phenomena are discussed in terms of the source parameters and igniter location. A simple model is developed for simulating the heat transfer and computing convective heat transfer coefficients from experimental pressure measurements. Convective heat transfer coefficients are reported for four tests. The effect of stagnation-point heat transfer is estimated.