The classifications are based on engine size, fuel type, fuel system, pollution standards, pollution control of exhaust system, the engine operation and etc.
Because these modes operate differently with respect to engine technology, fuel type, and vehicle capacity, the modeling techniques and modeling boundaries vary significantly across modes.
The information has been organized to provide average emission factors for nearly a thousand individual chemical substances as a function of vehicle age, engine size, and fuel type (Mullen, 2010).
The advertisements were poor in supplying much of the basic data on which consumers could make informed vehicle purchase decisions (eg, fuel type, engine size, engine efficiency and emissions).
It can yield valuable information about the effect of engine design changes, fuel injection system, fuel type and engine operating conditions on the combustion process and engine performance.
For travel by cars we additionally calibrated these emissions factors by (1) using the number of trips to take into account excess emissions following 'cold' engine starts and (2) applying speed-emissions factors [ 20] based on average speed plus the self-reported fuel type, engine size and age of the car the participant used most.
The results showed that the engine design parameters and fuel type considerably affect the brake power (BP), brake thermal efficiency (BTE) and NO formation.
c Advertisements with no information about fuel type or engine specifications.
The primary impediment for implementing the change has been the magnitude of the carbon conversion factor (i.e., the EC/TC ratio), which can be affected by many factors including fuel type and engine load (Noll et al., 2005).
To allow for the estimation of energy use and carbon emissions from private motor vehicle use, 8 42 additional items captured details of vehicle ownership and the age, fuel type and engine size of the vehicles used.
