Physics
What is the pressure in a biofuel container of volume 10m^3 holding 10 mols of gas at a temperature of 371 Kelvin?
What is 3083.1 or about 3000 pascals?
Are computers used for biofuel production?
What is yes?
What are the most common organic ingredients in biofuel?
Corn, vegetable oil
What is used to release pressure during the making of biofuel?
A pressure valve. If the pressure is not released things explode during the mixing process.
A fuel derived from living matter
What are biofuels?
How much more efficient is gasoline than ethanol?
About 25% more energy per gallon however it costs 17% less to make ethanol. These statistics are based on corn-based ethanol (the most common type in the United States) but cane sugar ethanol can be up to 3 times more efficient and cost and an average of 8 cents less.
What are computers used for in the making of biofuels?
Monitoring the ratios of ingredients as well as pressure and temperature conditions.
Why is corn not the best ingredient to make biofuel from?
Corn is not the most sustainably grown (in the US)
So much energy is used to grow and harvest corn that the ethanol made from it is only slightly more efficient.
Making ethanol from corn also uses significant amounts of fossil fuels
What is the average amount of ethanol mixed into gasoline in the United States?
10%
It is mixed in to reduce the emissions of the vehicle.
What are the two most common types of biofuel?
Ethanol and BioDiesel
What is the net gain in energy when creating ethanol?
About 8.8 megajoules per liter. It is a common misconception that ethanol takes more energy to make than it can produce.
A biofuel power plant sells the energy it produces during the day and charges storage capacitors at night. A computer program determines when the energy is sold based on mathematical predictions. Why might the program sell at inopportune times?
What is many reasons
Packet loss
Incorrect mathematical model
Lousy code
?
What does breathing in methanol lead to?
Central nervous system failure and organ damage
Can you put 100% ethanol in your car?
If you really want to but it isn't recommended. Pure ethanol typically isn't used in cars because it is worse for "cold starting" because it doesn't burn as quickly as gasoline. Some race cars are designed to use in though.
What crop is North Dakota trying to get federal approval to use as a base for biofuel?
Hemp
The latent heat of vaporization for ethanol is higher than that of gasoline. What does this mean for the internal combustion engine?
What is the latent heat of vaporization means that the heat required or time is taken for the gas to vaporize is higher. This can reduce engine knock, but it also makes it harder to cold-start your vehicle.
A computer program is designed to keep and isothermal environment in a bacteria chamber. Write pseudocode that will keep the chamber at a temperature of 150 degrees celsius.
What is
If tooHot == true
{
chamber.addCold()
}
If tooCold == true
{
chamber.addWarm()
}
?
What are the benefits of algae biofuel?
There are over 100,000 different types of algae, allowing for researchers to use different genetic combinations to develop different biofuels
Algae has a high biomass productivity per acre. Algae could be 10-100 times more productive than typical bioenergy crops
What is the base component of biodiesel?
Fats and oils. It is becoming more and more common for biodiesel manufacturers to utilize waste products from the food industry including used fryer oil and waste animal fat from meat processing plants.
What country has spent decades running the majority of their vehicles on E85?
Brazil. They produced 21.6% of the world's ethanol in 2017.
The first law of thermodynamics
What is Conservation of Energy?
Write pseudocode that returns temperature (T) in a tank of gas produced by Thermoanaerobacterium thermosaccharolyticum when given pressure (p), volume (v), and number of moles (n).
What is
def temperature(p, v, n)
{
return ((p * v) / (n * 8.31))
}
?
Can biofuel cells be implanted and work inside of an organism, if so, what organism, and how does it work?
Yes, a biofuel cell has been implanted into a snail, and it produces electrical power over a long period of time using glucose produced from the snail. The snail regenerated glucose from eating, and then it produced more electrical power.
Which component of the engine must be altered for a vehicle to run on E85 instead of E15?
The fuel injector. Because biofuels don’t combust as quickly there must be more fuel in the combustion chamber for the same effect.
How is biodiesel most commonly made?
You will need WVO, sodium or potassium hydroxide, methanol, distilled water and methanol. Filter then titrate the oil, mix the ingredients, drain the glycerin.