Frisca Nuradha Fresilliya

= Introduction

Hello, I am Ica. This is my air.eng.ui.id account. Now, with Mr.DAI, i am studying about numerical method that so fun <3

Resume 26/05/23

Numerical Methods in Engineering

Definision : Numerical methods are widely used in engineering to solve complex mathematical problems and simulate real-world phenomena.

Case study of this week : 1- Liter hydrogen storage optimization project.

The discustions: 1. (x+1)(x-1)/(x-1) = 2, if we do subtitution, in mathematics, division by zero is undefined. It is not possible to divide any number by zero and obtain a meaningful result. If you attempt to divide 1 by 0 in a mathematical operation or calculator, you would typically encounter an error or an undefined result. But, if we do elimination, we get the answer is 2. So, in this case we must be have a change between undifined or 2.

2. Consciousness relevant to this case? The definition of Conscious Mathematic is an approach or philosophy in mathematic that consolidated with conciousness concept, consideration, and observation by human. So, in my opinion, this case is relevant with consciousness. Because, we can approach an exact number that in this case is 2.

3. We need "Tafakur" to grasp this case. "Tafakur" means thinking, reflection, and contemplation to grasp this live."Tafakur" gives us to aware with philosophy. So, if we have a change between 2 choise, we need "Tafakur" to get a best choise.

Conclusion: The case in number 1, (x+1)(x-1)/(x-1) = 2, is my choise answer. I conscious and use "Tafakur" to get this answer. Not only in this case, but also in a problem of live we need both of them (conscious and "tafakur").

Design & Optimization of Pressurized Hydrogen Storage (01/06/23)

Specification of Hydrogen Storage

Volume : 1 Liter Pressure : 8 bar Cost : Rp500.000

How to design this Hydrogen Storage? To design and optimize a pressurized hydrogen storage system with a volume of 1 liter, several factors need to be considered, including pressure, material selection, safety, and efficiency. Here are some steps to help you with the design process:

Determine the target pressure: The pressure at which you want to store hydrogen will depend on your specific application. Higher pressures generally allow for more hydrogen storage, but they also require stronger and more expensive materials. Determine the appropriate pressure range based on your requirements.

Select a suitable material: The choice of material for the storage vessel is critical to ensure safety, weight, and cost considerations. Common materials used for hydrogen storage include carbon fiber composites, metal hydrides, and high-strength metals like aluminum or steel. Consider the material's strength, weight, compatibility with hydrogen, and cost when making your selection.

Design the storage vessel: Determine the dimensions and shape of the storage vessel to achieve a volume of 1 liter. Consider factors such as the internal pressure, material thickness, and any necessary reinforcements to ensure structural integrity. It's important to consult with a qualified engineer or expert in pressure vessel design to ensure compliance with relevant safety standards and regulations.

Optimize the storage system: To optimize the storage system, consider the following factors: a. Heat management: Hydrogen storage can generate heat during filling and discharging processes. Implement effective heat management techniques, such as incorporating heat exchangers or cooling systems, to enhance the overall efficiency and safety of the system.

b. Insulation: Insulate the storage vessel to minimize heat transfer and improve the system's overall efficiency. Select appropriate insulation materials to reduce the energy losses associated with hydrogen storage.

c. Safety features: Incorporate safety features into the design, such as pressure relief valves and rupture discs, to prevent overpressure situations and ensure the system can handle unexpected pressure spikes.

d. Leakage prevention: Hydrogen has small molecular size, and leakage can be a concern. Ensure proper sealing mechanisms and regularly check for leaks to maintain system integrity.

e. System weight: Consider the weight of the storage system, especially if portability is a requirement. Optimize the design and material selection to achieve a balance between weight and other performance factors.

Testing and validation: Once the design is complete, perform thorough testing and validation to ensure the system meets safety and performance requirements. This may involve pressure testing, leak detection, and compliance with applicable standards and regulations.

Remember, hydrogen storage systems can be complex, and it's crucial to consult with experts in the field to ensure the design and optimization process is carried out safely and effectively.