Muhammad rafli khansa
Contents
Short Introduction
Hello, my name is muhammad rafli khansa from 2019 class of mechanical engineering. My interest is in sports, art, and music.
This page will be filled with class resume and education content from mr DAI class of Energy conversion system, feel free to leave a comment or share a disscussion topic in my page. Thank you
Will we ever use up all the world's supply of oil
in 14 february 2023 we talked about energy source and energy alternatives that could be used especially electric source,and this sparks the question of our oil is going to run out in the near future. but is it true or not?.
Class resume 24/02/2023
Todays class starts with an introduction tutorial with mr DAI assistant about open modelica in relation with IC engine. We were directed to access the thermosyspro 3.2 to create new model of an ic engine.
Unfortunately for today i didnt bring my laptop to class so i cannot follow along the tutorial in class. So i got pairedmp with regina to follow along for today lesson.
Some students went to class late today so from now on mr DAI will implement a score system for the students to keep track how active they are in the class
Complete tutorial video on CCIT
Tutorial :
1. Open thermosyspro library
2. Find multi fluids
3. Find machines tab
And it will generate a model in the software
4. Next add fuelsource.PQ founded in the combustion tab connected to the fuel inlet
5. next add Source.PQ as air source
6. Next add source.PQ from the waterstream tab
7. Next add “seek” for outlet
8. Next add singular pressure losses and pit it in between the source and the input (the same goes for the output)
Investigating the effect of fuel octane rating on engine performance
This is a probable mini project realted to internal combustion engine that mr DAI instructed for us.
The objective of this project is to investigate how octane rating of a fuel affects the performance of and internal combustion engine. To help this mini class project i will be using my own daily drive vehicle.
In this project i will observe how different type of octane rating affect the fuel consumption with the aid of tracking fuel/km sensor that is already available in the car. I would want to test how it actually affects the car performance also but i havent figure out how exactly im going to do this.
So these are the objective that come to mind :
1. Record Fuel consumption on different type of octane rating
2. Record the price based on the fuel consumption
3. Analyzing which octane rating gives the car better fuel economy
4. Find out how to record engine performance on different types of octane rating
Class resume 23/02/2023
in todays class we talk with Mr Adi talking about pyrolisis he made an example with burning a piece of paper with a lighter,
Pyrolisis : The process of turning an object from one phase to another, (Oxidation)
he explains about the differences between pyrolysis and IC engine. thee difference is ic engine use liquid fuel and pyrolysis uses solid fuel. He also mentioned that combustion happened when there is a reaction between. he asked about what actually happens when an object heats up, it actually happenning molecularly that the molecules vibrate enough to a certain point that the object it self heats up and cause a fire to be produced.
he talks also about frequency he mentioned frequency or vibration is the purest form of energy, same with our laptop screen can display different information is because the change of frequency. Mr DAI also added that nikola tesla once said "if you want to understand physics, think about energy, vibration, and frequency"
Sintha asked the class why there is not a program to burn plastic to turn them into BBM by pyrolysis in indonesia?
MR adi answers that the mind set of our people is not there, no developed yet to think that trash is really not completely use less. for exmaple plastics, plastic is a made from carbon and hydrogen when it heated up it change to a chain of carbons and turn into liquid. Sintha and kevin gives feedback on bow the majrity of the people in foriegn countries the locals already aware enough thta htey sorted the trash themselves in their homes to make the sorting process more streamlined and easier to process the trash
Class Resume 03/03/2023
Today in class pak DAI is absent due to his sickness, and got subtitued with his assistant
we talk about conversion methods, 2 include bio chemcial route and thermochemical route. Pyrolisis is a combustion process that require very little oxygen or none at all, pyrolysis required a drying process and a cutting process to help, pyrolysis happens in temprature between 380-530 Celcius pyrolisys doesnt need a catalyst to occur rather just need a constant source of heat pyrolysis is devided into 3 criteria:
1. Flash Pyrolysis
2. Fast Pyrolysis
3. Slow Pyrolysis
these 3 criteria is based on its products
There are 3 products of pyrolysis: Bio char, Bio gas, and Bio Oil
Parameter of pyrolysis : 1. Pyrolysis Technology
2. Type of feedstock
3. feed stock size
4. Residence time
5. Heating Rate
