Internal сombustion engine. The fuels and emissions control. Engine fuels презентация
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- 2. Part I. Thermochemistry and Fuels This chapter reviews basic thermochemistry
- 3. Combustion Reactions Most IC engines obtain their energy from the combustion
- 4. SI engines have a combustion efficiency in the range of 95%
- 5. HYDROCARBON FUELS - GASOLINE The main fuel for SI engines is
- 6. Generally, the larger the molecular weight of a component, the higher
- 7. The crude oil from some petroleum fields in the Mideast is
- 8. A small percentage of components that vaporize (boil) at low temperature
- 9. If different commercial brands of gasoline are compared, there is found
- 10. SOME COMMON HYDROCARBON COMPONENTS Carbon atoms form four bonds in molecular
- 15. SELF-IGNITION Self-Ignition Characteristics of Fuels If the temperature of an air-fuel
- 17. Ignition delay is generally a very small fraction of a second.
- 18. For illustrative reasons, a combustion chamber can be visualized schematically as
- 20. On the other hand, a high compression ratio will result in
- 21. Octane Number The fuel property that describes how well a fuel
- 23. To find the ON of a fuel, the following test procedure
- 24. Fuel Sensitivity Because the test engine has a combustion chamber designed
- 25. The higher the flame speed in an air-fuel mixture, the higher
- 26. DIESEL FUEL Diesel fuel (diesel oil, fuel oil) is obtainable over
- 27. Another method of classifying diesel fuel to be used in internal
- 28. Cetane Number In a compression ignition engine, self-ignition of the air-fuel
- 29. A special CI test engine is used which has the capability
- 30. ALTERNATE FUELS Sometime during the 21st century, crude oil and petroleum
- 31. Vast improvements have been made in reducing emissions given off by
- 32. Only when extensive research and development is done over a period
- 33. Alcohol Alcohols are an attractive alternate fuel because they can
- 34. The disadvantages of alcohol fuels include: The disadvantages of alcohol fuels
- 36. 4. Poor cold weather starting characteristics due to low vapor pressure
- 37. Methanol Of all the fuels being considered as an alternate to
- 38. Methanol can be obtained from many sources, both fossil and renewable.
- 39. Ethanol Ethanol has been used as automobile fuel for many years
- 40. Hydrogen
- 41. Disadvantages of using hydrogen as a fuel: Disadvantages of using hydrogen
- 42. Natural Gas-Methane Natural gas is a mixture of components, consisting mainly
- 43. Advantages of natural gas as a fuel include: Advantages of natural
- 44. Propane Propane has been tested in fleet vehicles for a number
- 45. Other Fuels Attempts to use many other types of fuel have
- 46. CONCLUSIONS on Part I For most of the 20th century, the
- 47. Part II. Motor Vehicle Emissions Control Motor vehicles - cars, trucks,
- 48. MOTOR VEHICLES AND AIR POLLUTION In the United States, cars, trucks,
- 49. Auto emissions control has a long history. Exhaust emission standards for
- 52. Carbon monoxide emissions are significant when the engine is operated under
- 54. Diurnal emissions take place as the fuel tank of a parked
- 55. It is the average emission rate from the total in-use vehicle
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