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IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
IVE model
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IVE model

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  • 1. Estimation of Emissions Using International Vehicle Emission (IVE) Model for Delhi Presented by- Dhirendra Mishra Entry No.2009ASZ8538 Supervision by- Prof. Pramila Goyal Center for Atmospheric Sciences Indian Institute of technology Delhi
  • 2. 2 Preface  IVE functions as a tool to help cities and regions develop emissions estimates to: i. Focus control strategies and transportation planning on those that are most effective; ii. Predict how different strategies will affect local emissions; and iii. Measure progress in reducing emissions over time.
  • 3. There are three critical components necessary to develop accurate mobile source emissions inventories: a. vehicle emission rates; b. vehicle activity; and c. vehicle fleet d. 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 0 2 4 6 8 10 12 14 0 5 10 15 20 IVE Bin (Vehicle Power Demand) EmissionsMultiplier SaoPaulo(117) IVE(117) Emission Variation with VSP
  • 9. 9 IVE Model Output 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hour of Day Emissions(tons/hour) Evaporative Running Start
  • 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.

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