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IVE model

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  • 1. 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
  • 2. 2
    Preface
    • 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.
  • 3.
    • There are three critical components necessary to develop accurate mobile source emissions inventories:
    vehicle emission rates;
    vehicle activity; and
    vehicle fleet
    distribution.
  • 4. 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)
  • 5. 5
    IVE Model Development - Structure
  • 6. 6
    IVE User’s Interface
  • 7. 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. 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
  • 9. 9
    IVE Model Output
  • 10. 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. 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. 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
  • 13. 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.