Other Air Quality technical papers
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A Study of Air Flow Surrounding a Proposed Airport Terminal Expansion
B.C. Cochran, and J.S. Lague, Air & Waste Management Association, Paper # 99-493, 1999
Abstract: Wind tunnel modeling was used to assess the effects of an airport terminal expansion on local airflow and dispersion of vehicle exhaust in high-traffic passenger pick-up and drop-off areas, especially during adverse meteorological conditions. Wind tunnel testing was selected in preference to the use of mathematical air quality dispersion models due to the numerical models’ simplistic characterization of air flow in the vicinity of complex structures and their likely inability to assess air flow changes from the proposed modifications to the terminal.
R.L. Petersen, Cermak Peterka Petersen, Inc., 1999
Abstract: This paper presents a new, scientifically sound equation for predicting the thermal internal boundary layer (TIBL) height that does not assume constant overwater temperature lapse rate, uniform overland wind profile, constant heat flux, and zero heat flux at the top of the TIBL. The new equation was tested against a wind tunnel and field database of TIBL heights and the new equation agreed significantly better with observations than the existing Weisman equation.
R.L. Petersen, B.C. Cochran, and M.A. Milad, Air & Waste Management Association, Paper #98-354, 1998
Abstract: Field measurements of a diesel generator at a nuclear facility showed that the engine and radiator exhausts were causing enough of a temperature increase relative to ambient temperature to cause performance impairment of the system during high temperature days. Wind tunnel modeling was used to simulate the problem under various wind conditions. When a solution was identified, a field validation test demonstrated that the wind tunnel results predicted a temperature increase that was within 10% of the field observations.
LFL Estimates for Crude Oil Vapors from Relief Tank Vents
R.L. Petersen, K. Watson, and R. Roehner, Process Safety Progress, Vol. 16 No. 2, Summer, 1997
Abstract: To determine the region surrounding a crude oil relief tank within which athe lower flammable limit (LFL) could be exceeded, wind tunnel modeling was used in place of numerical modeling in order to provide more accurate results. Wind tunnel simulations were also used to judge the effects of various modeling parameters and to assist in possible future refinements to numerical models. Field observations were obtained for the purpose of validating the wind tunnel modeling.
Objective Method for Estimating Surface Roughness Length for Industrial Facilities
R.L. Petersen, D.K. Parce, and C. Rabideau, Air & Waste Management Association, 1995
Abstract: The purpose of this study was to develop and test three objective, reproducible, analytical methods for estimating surface roughness as a function of wind direction at refineries (or other areas of interest). The estimation techniques use physical dimensions and spacing of the structures at refineries or other built up sites, and are referred to as the Lettau, Counihan, and Simplified Counihan methods. The predictions of these methods are compared to results from wind tunnel modeling.
