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CONTROLLED EXPERIMENTS FOR DENSE GAS DIFFUSION - EXPERIMENTAL DESIGN AND EXECUTION, MODEL COMPARISON
Citation:
Egami, R., J. Bower, W. Coulombe, D. Freeman, J. Watson, D. Sheesley, B. King, J. Nordin, T. Routh, G. Briggs, AND E. Petersen. CONTROLLED EXPERIMENTS FOR DENSE GAS DIFFUSION - EXPERIMENTAL DESIGN AND EXECUTION, MODEL COMPARISON. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-95/055 (NTIS PB95218889), 1995.
Description:
An experimental baseline CO2 release experiment at the DOE Spill Test Facility on the Nevada Test Site in Southern Nevada is described. his experiment was unique in its use of CO2 as a surrogate gas representative of a variety of specific chemicals. ntroductory discussion places the experiment in historical perspective. O2 was selected as a surrogate gas to provide a data base suitable for evaluation of model scenarios involving a variety of specific dense gases. eleases were conducted under baseline conditions including a simulated "evaporating pool" release over flat unobstructed terrain. he experiment design and setup are described, including design rationale and quality assurance methods employed. esign conditions included moderately low wind speed, stable atmospheric conditions. our releases were performed, two of which were during near-neutral conditions and two during slightly stable conditions. esulting experimental data are summarized. hese include CO2 cloud characteristics measured at 40 m downwind from the release point. xperiment success and effectiveness is discussed in terms of mass balance analyses. or Test 1, 3, and 4 the measured mass accounted for at least 9OX of the released mass. easured values for Test 2 accounted for only 60% of the released mass. ata usefulness is examined through a preliminary comparison of experimental results with simulations performed using the SLAB and DEGADIS dense gas models.
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CONTROLLED EXPERIMENTS FOR DENSE GAS DIFFUSION - EXPERIMENTAL DESIGN AND EXECUTION, MODEL COMPARISON