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Regulated gaseous, particulate and several unregulated emissions are reported from four heavy-duty diesel engines operated on the chassis version of the 1983 transient procedure. A large dilution tunnel was fabricated to allow total exhaust dilution, rather than the double dilution employed in the stationary engine version of the transient procedure. A model particulate sampler was developed to obtain particulate data from the individual segments of the 1983 transient procedure. The exhaust gas was analyzed for benzo(a)pyrene, metals, N sub 20, NO sub 2, individual hydrocarbons and HCN. Sequential extractions were performed and measured versus calculated fuel consumptions were obtained.
Dietzmann et al. (Wed,) studied this question.