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ON THE USE OF AUTOMATIC DIFFERENTIATION FOR SENSITIVITY ANALYSIS IN EMISSION CONTROL
Citation:
Hwang, D. AND D.W. Byun. ON THE USE OF AUTOMATIC DIFFERENTIATION FOR SENSITIVITY ANALYSIS IN EMISSION CONTROL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-95/127.
Description:
Knowledge of the complex chemical interactions characterizing the photochemistry of tropospheric ozone production has significantly increased in the past but there exists no clear scientific consensus on the best strategy for reducing ozone. he role of volatile organic compounds and oxides of nitrogen in the production of tropospheric ozone has long been recognized. levated tropospheric ozone levels have proven to be much more difficult to control than other pollutants that have shared the focus of recent control efforts. undamental complicating factor relates to the fact that ozone is not directly emitted, but formed in the atmosphere by reactions involving reactive hydrocarbons and nitrogen oxides. ecause of the nonlinearities in the relationships between ozone and its precursor species, it is not at all simple to prescribe the requisite precursor emission reductions necessary to reduce ozone concentrations to a given level. ensitivity analysis of emitted species will provide important insights for emission control strategies for reducing ozone. e will present a preliminary result of sensitivity analysis in the emission control process by using an automatic differentiation technique.