What does well-to-wheel emissions mean?
What does well-to-wheel emissions mean?
Well-to-wheel emissions include all emissions related to fuel production, processing, distribution, and use. In the case of gasoline, emissions are produced while extracting petroleum from the earth, refining it, distributing the fuel to stations, and burning it in vehicles.
What is well-to-wheel efficiency?
Well-to-wheels efficiency is a combination (product) of well-to-vehicle and vehicle-to-wheels efficiencies. Well-to-vehicle efficiency is a product of all the efficiencies right from fuel extraction to transportation to supply to storing in a fuel tank of a vehicle.
What is tank to wheel efficiency?
TTW efficiency is, in this context, defined as the ratio between energy output from the wheels and the energy content of the fuel in the tank. The TTW efficiency is determined by the total amount of losses, which in a combustion engine comprise thermal losses, pump losses and mechanical losses [3].
What is well to tank analysis?
The WTW analysis includes the generated impacts by the energy use in the vehicle (Tank-to-Wheels, TTW), plus the impacts of the extraction of the raw materials, transportation, transformation, and distribution of the fuel to the service station (Well-to-Tank, WTT).
How does hydrogen fuel benefit your engine?
Hydrogen fuel cells are cleaner and more efficient than traditional combustion-based engines and power plants. Hydrogen and fuel cells can also be used in mobile applications to power vehicles and mobile power packs. The benefits of fuel cells are: Reduced greenhouse gas emissions.
What does the E stand for in CO2e?
Carbon dioxide equivalent
“Carbon dioxide equivalent” or “CO2e” is a term for describing different greenhouse gases in a common unit. For any quantity and type of greenhouse gas, CO2e signifies the amount of CO2 which would have the equivalent global warming impact.
How do you calculate Wh per km?
We know that 1 Wh = 3600 J, so 90 Wh = 324,000 J. And the power plant efficiency, conversion and transmission losses in electricity in India are 70% or more. So an Indian electric car @ 90 Wh/km has an efficiency of 1/(3600 divided by (100% minus 70%)) x 10^6 x (1/90) km/Wh = 0.93 km/MJ.
What does well Wake mean?
What does well-to-wake mean? “Well-to-wake” refers to the entire process of fuel production, delivery and use onboard ships, and all emissions produced therein.
What means tank to wheel?
The term Tank-to-Wheel (TTW) refers to a subrange in the energy chain of a vehicle that extends from the point at which energy is absorbed (charging point; fuel pump) to discharge (being on the move).
What is tank-to-wheel and well to wheel?
A well-to-wheel analysis can be subdivided into two parts: the well-to-tank (energy provision) and the tank-to-wheel (vehicle efficiency) analysis. Compared to a life cycle analysis the production, maintenance and disposal of the vehicle are not assessed.
