Affiliation:
1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, P.R China
Abstract
Experiments were carried out in a spark-ignition engine fueled with
iso-propanol/gasoline blends. Emission characteristics of this engine were
investigated experimentally, including gaseous emissions (HC, CO, NOx) and
particulate matter emission in term of number and size distributions. The
effects of different iso-propanol percentages, loads and exhaust gas
recirculation rates on emissions were analyzed. Results show that the
introduction of exhaust gas recirculation reduces the NOx emission and NOx
emission gives the highest value at full load condition. HC and CO emissions
present inconspicuous variations at all the loads except the load of 10%.
Additionally, HC emission shows a sharp increase for pure propanol when the
exhaust gas recirculation rate is up to 5%, while little variation is
observed at lager exhaust gas recirculation rates. Moreover, the particulate
matter number concentration increases monotonically with the increase of load
and the decrease of exhaust gas recirculation rate. There exists a critical
spark timing that produces the highest particulate matter number
concentration at all the blending ratios.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
35 articles.
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