FIELD EXPERIMENTS WITH DISPERSION OF PRESSURE LIQUEFIED AMMONIA

This paper presents dispersion experiments with continuous releases of liquefied ammonia carried out during the CEC ENVIRONMENT project ''Fl adis Field Experiments''. The source was a horizontal flash boiling je t with release rates of 0.25-0.5 kg s(-1). The objective was to study the dispersion in all its stages at the source, in the heavy jet with aerosols, the slightly stabilized plume, and further downstream into t he regime of passive dispersion. The concentration field is analyzed i n a fixed frame of reference as well as a frame of reference moving wi th the instantaneous plume centre-line. Empirical probability function s and a spatial correlation of the concentration fluctuations are foun d, and the enthalpy balance of the cold heavy jet and the aerosol comp osition are evaluated. (C) 1997 Elsevier Science B.V.