Propulsion
What two reactants are being used to produce hydrogen?
Zinc and HCl
What are the two chemicals used in this years braking reaction?
Ethyl acetate (CH3COOCH2CH3) and sodium hydroxide (NaOH)
Which matrial is being used to create a gasket for the hydrogen vessel?
Silicone
What kind of converter are we using on the PCB this year?
Buck-boost
Which organization hosts the Chem-E-Car Competition?
American Institute of Chemical Engineers
What molarity of acid are we using for hydrogen production?
3M
Which of the following is true regarding the braking reaction: a) it’s exothermic b) it’s endothermic c) it’s a precipitation reaction d) it forms hydrogen gas
a) Exothermic
Which mechanism is being implemented into the car to help it steer straighter?
Toe is being added
What input voltage range is the car capable of working with?
3-30V
What is the car's name this year?
OptiMac Prime
Why did we ditch the galvanic cells?
Not enough capacity
What is the maximum change in temperature observed from the braking reaction?
18°C
Which dropping mechanism is being used in the breaking vessel to release the liquid?
A ball valve actuated by a servo
What kind of algorithm are we using to keep the car going straight?
PID
When and where is the regionals competition this year?
March 29, Michigan State University
What do we need to fix in the propulsion reaction?
Shorten time delay
What type of regression is used to make the model?
Linear
Which 3d printed materials are being used for this years car?
PLA, ASA and TPU
What communication method does the IMU and Buck-Boost converter use to talk to the microcontroller?
I2C
Do you get disqualified for going over 30m?
No, you have until 33m before disqualification
What is the ideal purity of hydrogen to the fuel cell?
99.9995%
How much time do we have to stop the car?
About 80 seconds due to the fast kinetics of the reaction
What are the 2 safety mechanisms that have been added to the propulsion vessel to protect us form exploding?
Ball valve and relief valve
What does the IMU measure that keeps the car going straight?
Z-axis angle/rotation
The car must be built to fit into what dimensions?
40cm x 30cm x 20cm