vfm Flashcards
1.1.1 What is the most common fuel in the US? (p.6)
Gasoline
1.1.2 What types of vehicles use Gasoline? (p.6)
Cars - SUVs - Light Trucks - Motocycles - RVs - Boats - Small aircraft
1.1.3 What is the difference between unleaded and leaded gasoline? (p.7)
Charles Kettering ‘s resolve for silicening the “knocking” was to add Tetraethyl lead to fuel.
- Manufacturers met the new lead-free and emission restrictions by incorporating catalytic converters in automobiles
1.1.4 What seasonal cycles do the demand for gasoline follow? (p.7)
Demand is lower in colder months
1.1.5 What process is used to refine crude oil? (p.8)
Simple Distillation - mixture of hydrocarbons; so this first and most basic refining process is aimed at separating the crude oil into its “fractions,”
1.1.6 When is gasoline recovered during the refining process? (p.8)
The lighter products, such as liquid petroleum gases (LPG) and so-called “straight run” gasoline, are recovered at the lowest temperature
1.1.7 What is downstream distillation? (p.8)
downstream (or closer to the refinery gate and the consumer
Breaking it down further
1.1.8 Why are additives used in Gasoline? (p.9)
- Added as an attempt to increase octane rating. octane ratings are numerical values of the fuel’s resistance to vehicle engine “knock”
- Inhibit corrosion
- Librication
- Increase compression ratios
1.1.9 What are the main additives used in Gasoline? (p.9)
• Oxygenates: Fuels infused with oxygen that reduce carbon monoxide emissions. They are either based on alcohol or ether.
• Antioxidants: Used as a fuel stabilizer to prevent oxidation.
• Antiknock agents: Reduces engine knocking and increases fuel octane rating.
• Fuel Dyes: Some countries dye fuel that is taxed at a lower rate to monitor unauthorized use. Untaxed fuels are colored (usually blue, red or yellow) while taxed fuels are clear
• Metal deactivators: Fuel and lubricant additives used to stabilize fuel by deactivating metal ions and inhibiting the formation of gummy residues. This compound has been approved for both military and commercial use.
• Corrosion inhibitors: Chemical compounds that slow corrosion.
• Stabilizers: Used to maintain the quality of gasoline during idle periods. Stabilizers delay the oxidation process and prevent the separation of heavier and lighter compounds contained within gasoline.
1.1.10 What are the most common vehicle emissions caused by gasoline? (p.10
• Hydrocarbons (HC)
• Carbon Monoxide (CO)
• Carbon Dioxide (CO2)
• Sulfur Dioxide (SO2)
• Nitrogen Oxides (NOx)
• Particulate Matter (PM10/2.5)
1.2.1 What are the uses of diesel fuel? (p.10-11)
Diesel engines in trucks, trains, boats, and barges help transport nearly all the products people consume
1.2.2 What is Ultra Low Sulphur Diesel? (p.11)
- From EPA and Environment Canada
- A Specially refined diesel fuel that has a dramatically lower sulfur content than regular on-highway diesel and can be used in any diesel engine just like regular diesel fuel
1.2.3 Why is USLD valuable in North America? (p. 11)
Its worth more in the United States, where the maximum allowable sulfur is 0.05 percent by weight, than in Africa, where the maximum can be 10 to 20 times higher.
1.2.4 At which point is diesel recovered in the distillation process? (p. 11-12)
Gasoline is at lower Temps; Diesel is recovered at higher temp (356-716 degrees F) and is considered Middle Distilate, like Jet Fuel and Kerosene)
1.2.5 What is cetane and how is it measured? (p.12)
- Similar to Gas fuels being rated in Octane numbers, Diesel is measured by it’s cetane content.
- Cetane is a colorless gas that requires a low amount of heat to ignite.
- the higher this number, the higher the quality of the diesel fuel
1.2.6 Why is water a concern in diesel fuel? (p. 12)
Algae, Microbes and Water Contamination
1.2.7 What can happen to diesel fuel and the equipment that it is used in if there is a microbial contamination in the fuel? (p. 12)
- Diesel fuel is food for microbes, so when there is free water in a diesel tank, microbes have all the resources they need to multiply into a microbial colony
- These colonies can consume up to 1% of your fuel investment, while destroying the rest.
- Warm temp accelorates growth
1.2.8 Why are additives used in diesel fuel? (p.13)
• Increase mileage
• Clean injectors and engine deposits
• Remove water
• Increase cetane rating
• Lubricate the top cylinder
• Stabilize fuel
1.2.9 What terms are used to characterize the cold flow properties of diesel fuel? (p.13-14)
- The low temperature operability, of petroleum-based diesel fuel
- Low Temp Operability is characterized by the cloud point, and the Cold Fulter Plugging Point (CFPP)
1.2.10 What is the cloud point of a diesel fuel? (p.14)
Temperature at which small solid crystals are first visually observed as the fuel is cooled
1.2.11 What is the cold filter plugging point? (p.14)
Temperature at which a fuel will cause a fuel filter to plug, due to fuel components which have begun to crystallize or gel
1.2.12 How is diesel fuel kept warm in most modern engines? (p.14)
Excess Fuel to Engine - - warm fuel that has come close to engine is recycled back through the tank.
1.2.13 What are the leading options to treat diesel in the cold weather? (p.14)
- Blend with Kerosene
- Additive w/ cold Flow properties
- Fuel Tank, Filter, line heaters
- Store indoors when not in use
1.2.14 How can you find certified retrofitted technologies to reduce diesel emissions?(p.15)
Retrofit technologies are evaluated by EPA and CARB and verified technology lists are maintained by eachprogram
1.2.15 What vehicle emissions are listed by the DOE and EPA as problems? (p. 15)
Particulate Matter - NO - Hydrocarbins - CM - CD
1.2.16 What are the effects of the problematic emissions? (p. 16)
ll of these, except carbon dioxide, are directly harmful to humans and contribute directly to climate change
1.2.17 What is Particulate emission and why is it controlled? (p. 16)
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1.2.18 What is ozone and what are the health risks associated with it? (p. 16)
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1.2.19 What are some other problems associated with vehicle emissions? (p.17)
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1.2.20 What are the two types of national ambient air quality standards? (p.17)
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1.2.21 What might US states in non-attainment areas for ground level ozone have to do?(p.17)
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1.3.1 Define alternative fuels. (p.18)
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1.3.2 What is the main purpose of fuel? (p.19)
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1.3.3 What is the major environmental concern according to the Intergovernmental Panel on Climate change? (p.19)
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1.3.4 Describe the peak oil theory concern (p.19)
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1.3.5 What are sustainable alternative fuels? (p.19)
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1.3.6 Why would non-sustainable alternative fuels be used. (p.19)
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1.3.7 What is Biomass? (p.19)
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1.3.8 What is Non-Conventional Oil? (p.20)
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1.3.9 What are the sources of Non-Traditional Oil? (p.20)
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1.3.10 What is the Fischer-Tropsch process? (p.20)
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1.3.11 What is Methane Hydrate? (p.20)
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1.3.12 How can methanol and ethanol be used as energy sources? (p.21)
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1.3.13 What are the alternative fuels being considered to power todays fleet vehicles?(p.21
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1.4.1 What is Biodiesel? (p.21)
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1.4.2 How can Biodiesel be used? (p.21)
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1.4.3 How is Biodiesel made? (p.21-22)
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1.4.4 How might an organization adopt biodiesel for purposes such as federal or state statute? (p.22)
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1.4.5 Why use Biodiesel? (p.22)
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1.5.1 Are renewable diesel and Biodiesel similar? (p.22)
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1.5.2 What is renewable diesel? (p. 23)
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1.5.3 How is renewable diesel made? (p. 23)
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1.5.4 What are the benefits of renewable diesel? (p.23)
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1.5.5 How might the use of renewable diesel be able to impact carbon emissions?(p.23)
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1.6.1 What is Ethanol? (p.23)
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1.6.2 How can ethanol be used as a fuel? (p. 23)
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1.6.3 What is E10? (p.23)
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1.6.4 What is E85? (p.24)
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1.6.5 Are all vehicles ethanol compatible? (p.24)
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1.6.6 What is the ultimate blend level of ethanol? (p.24)
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1.6.7 What is cellulosic ethanol? (p.24)
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1.7.1 What is an electric vehicle? (p.24)
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1.7.2 What sources might the energy used to power the vehicle come from? (p.24-25)
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1.7.3 What sources of energy could hybrid electric vehicles use? (p. 25)
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1.8.1 What is a hybrid electric vehicle? (p. 25)
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1.8.2 What are some of the considerations when looking at hybrid fuel sources? (p.25)
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1.8.3 How does a gasoline electric hybrid function? (p.25)
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1.9.1 What is a hydrogen vehicle? (p. 26)
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1.9.2 What are the two broad categories of hydrogen fueled vehicles? (p. 26)
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1.9.3 What is the source of the fuel? (p. 26)
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1.9.4 What are the benefits of using hydrogen as a fuel? (p.26)
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1.9.5 How does a fuel cell function? (p.27)
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1.9.6 What are the most significant issues involved in using hydrogen as a fuel source? (p.27)
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1.9.7 What are some of the issues with storing hydrogen? (p.28)
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1.9.8 What are the temperature concerns with hydrogen powered vehicles? (p.28)
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1.9.9 What are some of the current limitations of hydrogen powered vehicles? (p.28)
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1.9.10 What are some of the safety concerns involving the use of hydrogen as a fuel? (p.28)
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1.9.11 How has the competition from other fuel sources affected the adoption of hydrogen as a fuel source? (p.29)
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1.10.1 How can natural gas be used to decrease our dependence on foreign oil? (p.30)
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1.10.2 How might the use of natural gas-powered vehicles reduce vehicle exhaust emissions? (p.30)
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1.10.3 Why is natural gas the lowest producer of greenhouse gasses out of all of the fossil fuels? (p.31)
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1.10.4 What are the safety benefits of using natural gas as a fuel? (p.31)
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1.10.5 How common are natural gas vehicles and their refueling infrastructure? (p.31)
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1.10.6 How expensive is natural gas as fuel? (p.31)
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1.11 Propane (p.32)
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1.11.1 Is propane an alternative fuel? (p.32)
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1.11.2 What is a bi-fuel propane vehicle? (p.32)
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1.11.3 How do propane powered vehicles handle in comparison to gasoline powered vehicles? (p.32)
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1.11.4 How expensive is it to maintain a propane vehicle? (p.32)
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1.11.5 What are some of the other benefits of propane powered vehicles? (p.32)
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1.12 Reformulated Gasoline (p.32)
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1.12.1 Why is RFG used? (p.32)
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1.12.2 Is RFG an alternative fuel? (p.33)
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1.12.3 How common is the use of RFG? (p.33)
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1.13 Petroleum reduction calculators (p.33)
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1.13.1 What tools are available to help reduce greenhouse gas emissions? (p.33)
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1.13.2 What tools can be used to help calculate greenhouse gas emissions in Canada? (p.33)
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1.14 Oil markets and their influence on pricing (p.33)
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1.14.1 Why is it important to understand the dynamics of fuel supply and demand? (p.33)
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1.14.2 Why is oil imported? (p.34)
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1.14.3 What are some concerns of our growing appetite for oil? (p.34)
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1.14.4 Have the Energy Policy Acts of 1992 or 2005 achieved their goals of reducing the importation of foreign oil? (p.36)
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1.14.5 How does OPEC influence oil supply? (p.36)
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1.14.6 What is the benchmark price for crude oil on the New York Mercantile Exchange? (p.37)
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1.14.7 How can market speculation affect the price of crude oil? (p.37)
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1.15 Strategic Petroleum Reserves (p.38)
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1.15.1 What is the US Strategic Petroleum Reserve? (p.38)
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1.15.2 How much oil is stored in the Strategic Petroleum Reserve? (p.38)
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1.15.3 How much oil is consumed in Canada vs. the US? (p.39)
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