Muhammad Ghifari Rizki

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Get to Know me

بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيْم

السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ

Hello My name is Muhammad Ghifari Rizki. Please call me Ghifari. I am a mechanical engineering student from Universitas Indonesia, batch 2020. I hope in this platform we can share knowledge and kindness.

Question and discussion regarding fuel (21 Feb 2023)

Muhammad Ghifari Rizki: What are the relationhip between sugarcane factory, car battery, and liquid fuel?


There are a few potential relationships between sugarcane factories, car batteries, and liquid fuel, depending on the context:

Sugarcane factories and liquid fuel: Sugarcane is a common source of biofuel, specifically ethanol, which can be produced from the plant's sugars. Sugarcane factories may produce ethanol as a byproduct or as a primary product, which can be used as a liquid fuel for transportation or other purposes.

Car batteries and liquid fuel: Car batteries are used to provide electrical power to start the engine and run various electronic systems in a vehicle, while liquid fuel (such as gasoline or diesel) is used to power the internal combustion engine that propels the car forward.

Sugarcane factories and car batteries: There may not be a direct relationship between sugarcane factories and car batteries, but sugarcane farming and processing may require significant amounts of electricity, which could be supplied by batteries or other energy storage systems. Additionally, the production of car batteries may require raw materials (such as lithium, cobalt, or nickel) that are mined or extracted in areas where sugarcane is grown.

Overall, while there may not be a direct relationship between all three items, they are all important components of the modern industrial economy and are likely to be interconnected in various ways.

Self introspection (24 Feb 2023)

At today's class, my friends and i came late to the classroom and made Mr.Dai waiting for us. I regret my fault and try to keep myself better (Conscious) every day .

ICE SIMULATION with Open Modelica (24 Feb 2023)

Today, with guidance from Mr. Tanwir, we are trying to simulate Internal Combustion Engine with Open modelica software. Basically, open modelica has already provided us with its library, Thermosyspro. Here is the model of the ICE:


Unfortunately, my result still produced an error, and i still working to solve the error Errorice.jpg

Thank you.

Individual Project Synopsis ECS 2

Modelling Toyota Innova ICE engine with Open Modellica

You can see my synopsis video on youtube ->>

1. Intro

As one of the most popular internal combustion engine cars in Indonesia, it would be very interesting to review the internal combustion engine used in the Toyota Innova. in this project I will try to model the internal combustion engine on the Toyota Innova car using Open Modelica.


CCIT Visit (10/3/23)

On this occasion, we visited the CCIT Lab to see how the implementation process of energy conversion at MRPP (Mobile Refinery and Power Plant) is a project of Mr. DAI.

There are 3 main processes that occur in this tool, namely the generator, pyrolysis, and FCC (Fluid Catalytic Cracking). In the generator, the input provided comes from LPG gas where the output will produce around 5000 watts of electricity and also flue gases. Furthermore, in the pyrolysis process, the input to this process is dry azolla and goat manure which will be processed to produce the final product in the form of bio-char, crude bio oil and bio-singas, by utilizing flue gases from generators and IC engines from vehicles. Crude Bio oil produced from this process is then processed using FCC to be purified again to become ready-to-use bio oil.

MRPP scheme.jpg Studyvisit.jpg

Progress Hydrolysis Project

In today's hydrolysis project progress, I started by preparing the metal plates to be used, where the type of metal used was aluminum 1100 with a thickness of 0.28 cm and various cross-section areas. Later this existing plate will be used as the cathode in the system. Later this process will produce hydrogen which is used to power the generator.

Hasilpotong.jpg Memotongplat.jpg

Here is the youtube video link for today's recap of material preparation activities :

Thank you.


March 28th 2023

Quiz page 1
Quiz page 2

ECS 2 Project

Introduction In this ecs2 project, we were asked by Mr. Dai to do a hand's on project regarding electrolysis and IC engines. In this project, I joined Rasendriya's personal project to produce hydrogen through electrolysis. In this project, I will calculate the amount of hydrogen produced through the electrolysis process using an electrode in the form of aluminum 1100 and electrolysis of water. After getting the amount of hydrogen obtained from the experiment, the existing quantities will be compared with the model from open modelica to prove the similarity of the results.

Electrolysis Electrolysis is a process of using electrical energy to drive a non-spontaneous chemical reaction. In the context of hydrogen production, electrolysis is used to split water molecules into hydrogen and oxygen.

The process of electrolysis involves passing an electric current through a water solution called an electrolyte, which typically contains an acid or base to increase the conductivity. The electrolyte conducts the electricity and facilitates the movement of charged particles, or ions, to the electrodes.

During electrolysis, two electrodes are placed in the electrolyte solution. The electrode connected to the positive terminal of the power supply is called the anode, and the electrode connected to the negative terminal is called the cathode. The anode attracts negatively charged ions (anions) and the cathode attracts positively charged ions (cations).

In the case of water electrolysis, the water molecule (H2O) is split into hydrogen ions (H+) and hydroxide ions (OH-). At the anode, water molecules lose electrons and form oxygen gas (O2) and positively charged hydrogen ions. At the cathode, the hydrogen ions gain electrons and form hydrogen gas (H2).

electrolysis scheme

Overall, the reaction can be represented as:

2H2O(l) → 2H2(g) + O2(g)

In this experiment we use aluminium as the electrode which the reaction equation will be:

2Al(s) + 3H2O(l) → Al2O3(s) + 3H2(g)

This equation shows that when an electric current is passed through a solution of water containing aluminum electrodes, hydrogen gas (H2) is produced at the cathode (negative electrode), while oxygen gas (O2) is produced at the anode (positive electrode). The aluminum electrodes themselves do not participate in the reaction, but instead, they act as a source of electrons for the reduction of H+ ions at the cathode. Overall, the reaction produces aluminum oxide (Al2O3) as a byproduct.


This experiment is conducted with 3 different currents (6A, 8A, 10A) to calculate flow rate of hydrogen produced. The aluminium plates used are Aluminium 1100, with 0.28cm thickness and 12cm x 10 cm cross section.

6 ampere
8 ampere
10 ampere

From experiment, we got the flow rate for:

6A = 40ml/ minutes
8A = 60ml/minutes
10A = 80ml/minutes

Open Modelica Modelling


1. calculating the amount of hydrogen gas produced using Faraday's law of electrolysis:
   n= I x t / 2 x F
      n = moles of Hydrogen
      I = Current (Ampere)
      t = time (second)
      F = Faraday constant (96485 coulombs)

2. calculating the volume of hydrogen gas produced using the ideal gas law:

   V (in litres) = n x R x T / P


     n = moles of Hydrogen
     R = gas constant, which is equal to 0.08206 L x atm / (mol x K)
     T = Temperature in Kelvin (298 K for room temperature)
     P = Pressure (atm)

3. Calculating the mass of hydrogen gas produced

   mass (in grams) = n x 2.016


     n = moles of Hydrogen
     2.016 = molar mass of Hydrogen 
Open modelica script
Open modelica Result

Based on results from open modelica, we can conclude that the result from experiment and from the model are quite similar. After that, using the amount of hydrogen that we got from Electrolysis, we calculate the power produced by the IC engine using Open Modelica.

IC Engine model

The parameter for IC Engine

IC Engine parameter

The result

IC Engine Result

Here is my PPT link for another PoV, thank you