Rivanza Rahmantiar Maftuchan

Halo perkenalkan saya Rivanza Rahmantiar Maftuchan . Saya lahir di Jakarta , 29 April 2003 . saya memiliki riwayat bersekolah di SMPN 68 Jakarta , SMAN 55 Jakarta dan akhirnya berkuliah di Universitas Indonesia prodi Teknik Perkapalan 2021

Resume perkuliahan (26 Mei 2023) Pada tanggal 26 Mei 2023 Pak Dai memberikan perkuliahan terkait dengan Metode Numerik yang berkaitan dengan hakikat atau fitrah manusia sebagai makhluk yang senantiasa memiliki agama . Dijelaskan oleh beliau bahwa agama dan metode numerik harus sama-sama bisa dicerna agar mendapat ketenangan . Selain itu beliau juga mengajarkan konsep agar ilmu duniawi bisa selaras dengan ilmu akhirat , karena mungkin ilmu duniawi lah yang akan mengantarkan kita pada kesadaran tentang adanya tuhan dan penciptaan alam semesta agra kita berpikir dan lebih mendekatkan kepada tuhan yang maha esa .

Untuk konsep dari pembelajaran pak Dai sendiri menggunakan konsep pembelajaran diskusi agar mahasiswa lebih aktif dalam mencari referenis , jurnal maupun situs terkait mata kuliah metode numerik yang sedang diampuh .

Tugas 1 Juni 2023 Design and Optimization of Pressurized Hydrogen Storage

Basic Design Capacity : 1 L Pressure : 8 bar Cost should not exceed Rp. 500000

1. System Design: a. Storage Tank: The storage tank is a critical component of the pressurized hydrogen storage system. It must be designed to withstand high-pressure conditions, ensuring safety and durability. Various materials and designs are considered, such as Stainless AISI 316

b. Safety Measures: Safety is of utmost importance when dealing with pressurized hydrogen. The system design incorporates safety measures such as - pressure relief devices, -leak detection systems -structural integrity assessments to ensure safe operation and prevent accidents.

c. Compression System: A compression system is essential for filling the storage tank with hydrogen gas. The design and optimization of the compression system consider factors such as compression efficiency, energy consumption, and system reliability.

d. Control and Monitoring System: An efficient control and monitoring system is implemented to regulate the pressure inside the storage tank, monitor hydrogen levels, and ensure safe operation. Advanced sensors and control algorithms are employed to maintain optimal operating conditions.

2. Optimization Process: a. Modeling and Simulation: A mathematical model is developed to simulate the pressurized hydrogen storage system's performance.

b. Optimization Algorithms: Optimization algorithms, such as genetic algorithms or particle swarm optimization, are applied to find the optimal design and operational parameters.

c. Performance Analysis: The optimized design is evaluated through performance analysis.

d. Sensitivity Analysis: Sensitivity analysis is conducted to understand the system's response to variations in input parameters, such as hydrogen demand, operating conditions, and material properties

3. Results and Implementation: The optimization process provides insights into the optimal design and operational parameters of the pressurized hydrogen storage system. The results highlight improvements in storage capacity, system efficiency, and safety. The findings guide the implementation of the optimized system, considering technical feasibility, economic viability, and regulatory compliance.

4. Conclusion: The case study demonstrates the importance of design and optimization in pressurized hydrogen storage systems. By considering factors such as storage tank design, safety measures, compression systems, and control systems, the project achieves an optimized storage system that maximizes storage capacity, ensures safety, and improves overall system efficiency.

Tugas 9 Juni 2023

Pada kesempatan kali ini saya akan mendemonstrasikan cara perhitungan melalui metode koding menggunakan aplikasi phyton : Capacity : 1 L Pressure : 8 bar Biaya pembuatan : Rp. 500000 Saya menggunakan Stainless steel AISI 316 dengan konsiderasi ultimate tensille strength sebesar 520 mpa Yield stregth sebesar 205 mpa . Massa jenis sebesar 8000 Kg/m3 dan modulus elastisitas sebesar 193 GPA

Import math

# Input
volume = 1000  # dalam Cm^3
radius = 10    # dalam cm
height = 3.1847133  # dalam cm

# Konversi volume dari liter ke cm^3
volume_cm3 = volume * 1000

# Konversi dari dm ke cm
radius_cm = radius * 10
height_cm = height * 10

# Perhitungan luas permukaan
base_area = math.pi * (radius_cm ** 2)
side_area = 2 * math.pi * radius_cm * height_cm
total_area = 2 * base_area + side_area

# Cetak hasil
print("Luas Permukaan: ", total_area, " cm^2")

Setelah menjalankan kode tersebut, Anda akan mendapatkan luas permukaan tabung dalam 827,952 cm^2.

Dapat diketahui pula bahwa panjang tabung = 3,184 cm dan tinggi 10 cm .

Pemilihan material

from scipy.optimize import minimize

# Harga dan kapasitas yang dibutuhkan
harga_per_unit = 500000  # Rupiah
kapasitas_per_unit = 1  # Liter

# Anggaran maksimal
anggaran_maksimal = 500000

# Fungsi Akhir
def fungsi_akhir(x):
   return -x * kapasitas_per_unit

# Kendala yang terjadi
def kendala(anggaran):
   return anggaran_maksimal - (harga_per_unit * anggaran)

kendala_anggaran = {'type': 'ineq', 'fun': kendala}

# Nilai awal
x0 = 0

# Batasan
batas = [(0, None)]

# Menyelesaikan masalah optimisasi
solusi = minimize(fungsi_akhir, x0, method='SLSQP', bounds=batas, constraints=[kendala_anggaran])

# Menampilkan hasil
print("Status:", solusi.success and "Biaya Optimal" or "Tidak ditemukan solusi")
print("Jumlah unit yang bisa dibeli:", solusi.x[0])
print("Total kapasitas penyimpanan yang didapat:", solusi.x[0] * kapasitas_per_unit, "liter")
print("Total anggaran:", solusi.x[0] * harga_per_unit, "Rupiah")

Untuk harga dilihat dari situs :

https://www.tokopedia.com/findustri/plat-stainless-3mm-316-stainless-food-grade-316-harga-per-1-cm2?utm_source=google&utm_medium=organic&utm_campaign=pdp-seo

Didapat perhitungan 827.952 * Rp 390 = Rp 322.901