Estimation of Emissions Using International Vehicle Emission (IVE) Model for Delhi Supervision by- Prof. Pramila Goyal Center for Atmospheric Sciences Indian Institute of technology Delhi Presented by- Dhirendra Mishra Entry No.2009ASZ8538
IVE functions as a tool to help cities and regions develop emissions estimates to:
Focus control strategies and transportation planning on those that are most effective; Predict how different strategies will affect local emissions; and Measure progress in reducing emissions over time.
There are three critical components necessary to develop accurate mobile source emissions inventories:
vehicle emission rates; vehicle activity; and vehicle fleet distribution.
4 IVE Model Development Estimates criteria, toxic and global warming gases from on-road mobile sources Corrects for ambient and operating conditions Free downloadable from the website: www.issrc.org/ive Input files also available for download: Vehicle Technology Distribution Files Driving Pattern and Local Parameter Files Local Emission Rate files (optional)
7 IVE Vehicle & Fuel Categories Classes: Passenger Vehicles, 2 wheelers, 3 wheelers, taxis, light and heavy trucks, buses. Variety of age and maintenance conditions Fuels: Gasoline, Diesel, Propane, Natural Gas, Ethanol (OEM and retrofitted), Electric. Varying sulfur, lead and oxygenate levels Technologies: 2 stroke, 4 stroke, air/fuel controls, exhaust controls, etc.
8 IVE Driving Behavior IVE model designed to incorporate effects for any driving pattern Currently based on VSP and engine stress Flexibility in the model will allow to upgrade model parameters as new methods become available Emission Variation with VSP
10 Data Collection Methods Data Collection in Two areas: Vehicle Activity (VA) Vehicle Emissions (VE) Each field study lasts 2 weeks Basic Emissions Inventory created for all pollutants at the end of the studies Irregularities and data gaps identified for further research
11 VA Field Study: Technology Distribution & VKT Historically, registration and I/M data used Missing/ Out of Date, Reflects Static Fleet Solution: Measure real world fleet fraction Identify representative sample of roadways Enter data for various areas and times of days
12 Summary IVE allows analysis of the impacts of fleet technology, traffic flow, and fuel modifications on criteria pollutants, toxics, and global warming gases. Highly successful in producing an initial mobile source inventory for urban areas, along with guidelines for improving the inventory. Local universities/government are educated in the use of the IVE model, the rational and techniques of data collection, and the importance of using the proper methods of estimating mobile source emissions. Additional field studies continuing this work are currently underway in China, Africa, Latin America
Measure of the average amount of a specific pollutant or material discharged into the atmosphere by a specific process, fuel, equipment, or source. It is expressed as number of pounds (or kilograms) of particulate per ton (or metri ton) of the material or fuel.