Alvian Choiri Apriliansyah
My name is Alvian Choiri Apriliansyah (2006517751), a Universitas Indonesia student from Mechanical Engineering (2020 batch, International class). Currently I'm in 6th semester, studying Energy Conversion System 2 classes amongst others
Week 1
ECS 02 ChatGPT conversation
What's the relations between sugar factory, electric vehicles, and fossil fuels?
In short, ChatGPT explains that sugar factories can produce biofuels, either for vehicles or powerplant. It also explained the reductions in fossil fuels through the electricity for electric vehicles, but it noted the EVs impact depends on powerplant source as most still uses fossils
I then read some research paper & news article about ethanol, and I asked some intriguing question: But I found the recent research from University of Wisconsin a year ago, concluded that ethanol actually produce 24% more GHG than gasoline because of land usage from producing corn
It admit the results of those research paper, saying that the increase of land usage results in more GHG (Green House Gases), but then it stated that it's still under a debate as not all papers have the same conclusion
Week 2 Friday
In this time, I learned about IC (Internal Combustion) engine modelling via OpenModelica. The teacher put out a step-by-step on
1. The OpenModelica version,
2. OMEdit IC engine model (with equations) already pre-installed
3. Explanation about the components (input: fuel & air, cooling: air/water, output: flow gas (carbon dioxide, carbon monoxide, etc.))
4. Adding sinks to each of those 4 components, with additional pressure loss component for cooling section
Week 3 Tuesday
Professor Adi explains to us the pyrolisis by (literally) burning a piece of paper. I then explains to him (which he affirms) the difference with internal combustion engine that instead of using liquid fuel it uses solid fuel, example: woods, coals, etc. But of course, both processes involves a fire triangle (oxidizer, fuel, and ignition source) and produces energy & heat (exoterm).
