Monday, March 30th: Initial discoveries and research
To start our day, we
looked into gas-powered engines. We spent a good while after viewing some
engine models debating if we should buy an engine that you build yourself, or
if we should buy an engine that is preassembled. Now this may seem like a
simple solution, but it took some time to figure out, as both engine types had
their pros and cons. In regards to the manual assembly engine, we thought this
would be the best way to build our motor. We felt that this would be a
rewarding experience to build an engine from scratch. Moreover, the engine was
cheaper than a pre-assembled one. However, we encountered a slight problem when
reading the description of the engine parts. We found that the self-assembly
engine only included an engine in the order. This meant that we would have to
compile a parts list and buy all the other parts needed to make a motor bicycle
separately, such as a muffler and motor mount. We then looked into a
pre-assembled motor and found that these kits included all parts needed to
assemble the motor onto the bike. We did some quick calculations and found that
buying the parts all in one ended up being cheaper than having to compile a
list and buy every single part of the bike separately.
Next, after deciding
to buy a pre-assembled motorbike, we looked into what type of engine to buy. We
saw listings on different websites for a “2 Stroke engine” or a “4 Stroke
Engine”. We then began our research into
what the difference was between the two in regards to motorbikes. With a
two-stroke engine, we found that the bike did not actually use solely gasoline,
but rather a gas and oil mix. Moreover, we learned that the two-stroke engines
we were looking into had more torque than a 4-stroke engine. Now, torque is
useful for hills or heavier riders, as it offers more horsepower. However,
because a two-stroke engine offers more power, it is not as fuel efficient as a
4 stroke. However, what the four stroke lacks in power, it makes up for with
its fuel consumption rate. We ended up deciding on purchasing a two-stroke
engine, as the low cost outweighed the pros of a 4-stroke engine.
After determining
which gas powered engine to buy, we began looking into electric motors. These
motors were actually very different from those powered by gas, as we
discovered. Instead of one large engine cell, we saw that these kits included a
wheel that was to be attatched on the bike that spun and propelled the bike
forward when turned on. We did our research on how voltage of each engine
translated into miles per hour. We looked into 48v engines as well as 36v
engines. We discovered that though the 36v engine was cheaper, it did not move
the bike at a practical speed for getting around, which made us want to go with
the 48v engine. However, the 48v engine was about $200, which would go over our
budget.
After deciding on to
buy the 48v engine, we ran into a problem with our budget. Lovett graciously
awarded us $350 for our senior project, but after calculating all the costs of
the engines, bikes, etc., we saw that our budget was going to come out to more
around $500 (rough estimate, not final). Upon discovering this, we decided to
email Mrs. Switzer who was the faculty sponsor of the Green Team. We explained
the predicament we found ourselves in, and asked if the Green Team would like
to contribute to our energy efficient, green mode of transportation. Mrs.
Switzer told us to write a proposal and send it to Dr. Dunkel, which was done
immediately.
As you can tell by
the length of my reflection I am really excited to be a part of this project.
Though this research can be tiresome, I know what is in store for us in the
coming weeks will be worth it. We planned out our entire week today and cannot
wait to continue educating ourselves on the subject of motorbike mechanics. I
am looking forward to learning what the mechanical industry has to offer and
what I can learn from it. Tomorrow, we plan to research bikes and what they
might cost, where they are located, and whether or not we should buy them. We
are also planning on continuing our research covering every aspect of what
motorbikes are, and what their engines accomplish.