Paper Title
Nox Released from a Gas Turbine-based Power Plant Operating on Fuel Oil: Open and Combined Cycle Modes

Abstract
This study aimed at examining the dispersion of nitrogen oxides (NOx) emitted from a GT-based power plant located in the Sultanate of Oman. Two scenarios of open and combined cycle modes were considered, where in both the GT-based power plant was operating on fuel oil. Estimation of the NOx concertation was carried out by using CALPUFF dispersion modelling software. The results indicated that NOx concentrations were higher when GT was used in the combined cycle mode. Moreover, it was found that the NOx one-hour average simulated concentrations exceeded the allowable limits only when the combined cycle mode was activated. Keywords - Gas Turbine, Nitrogen oxides, Dispersion, Point source, CALPUFF, Sultanate of Oman.