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The Effect of Microwave Oven Power Variations on Co-Pyrolysis Process of Oil Palm Shells and Polystyrene: Pengaruh Variasi Daya Microwave Oven Terhadap Proses Co-Pirolisis Cangkang Kelapa Sawit dan Polistirena Nazarrudin, Rizal; Saptoadi, Harwin
Procedia of Social Sciences and Humanities Vol. 3 (2022): Proceedings of the 1st SENARA 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v3i.193

Indonesia has a very large area of oil palm plantations, one of which is the island of Sumatra. However, in processing and handling palm oil product waste in the form of palm shells, it has not been maximized. Therefore, the chemical decomposition process can play an important role in supporting waste management and sustainable energy use in Indonesia which is not yet optimal. In this research, the proper use of power will be tested with the help of microwaves as a reactor for the co-pyrolysis process of oil palm shells and polystyrene plastic. The purpose of this study was to determine the appropriate power to produce maximum co-pyrolysis products and to investigate the physical characteristics of the oil-pyrolytic products. The test uses a microwave oven which has a power variation of 300 W, 450 W, 600 W, and 800 W with the addition of a catalyst. The ratio of the composition of oil palm shells to polystyrene plastic is 1:1 with a total mass of 105 gr and using coconut shell charcoal as an activated carbon absorber. The pyrolysis temperature is 500 ℃, the nitrogen gas flow rate is 1.5 LPM, and the pyrolysis time is 60 minutes. Furthermore, testing the physical properties of the pyrolysis oil product in the form of density, acidity, and viscosity testing. The results showed that the optimal power to obtain oil-pyrolytic was 600 W with a product oil of 17.6%, and from the physical properties it had a low viscosity value of 2.55 mPa.s with a pH level of 6.6.

Design And CFD Analysis of A 250 Kg Capacity Boat For Access Between Small Islands In The Lampung Tourism Area Nazarrudin, Rizal; Sabiqunassabiqun
Journal of Applied Science, Engineering and Technology Vol. 4 No. 2 (2024): December 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i2.66

Characteristics from design boat capacity 3-4 people or 250 kg good for used access between island small in area tour with depth shallow base. The resistance of the boat's hull when operating plays an important role in knowing the power required by the boat. This is very important in designing a hull. Therefore, in design This will be done in numerical simulation using Computational Fluid Dynamics (CFD) to know how much power is required by the boat with a number of variation speeds. Design simulation moreover formerly created in Autodesk Inventor software, then design that has been designed will be simulated using the Ansys Fluent CFD application program. The data variables used in simulation numeric using varying speed limits namely 20 knots, 16 knots, 12 knots, 8 knots, and 4 knots, as well as condition rate flow is turbulent, wall side and top is symmetry, and the part the design that will be simulated is part hull the boat that sank in the water. The result of simulation numeric boat 250 kg capacity indicates a number of pressure and velocity contours of part hull as well as obtained Power highest at a speed of 20 knots 13938.511 Watts.

Analisa Numerik Pengaruh Sirip Pembagi Aliran pada Unjuk Kerja Termal Kolektor Panas Plat Datar Bersirip Prabowo, Angga Darma; Kurniawan, Dondi; Nazarrudin, Rizal; Saputra, Eko Wahyu
JURNAL CRANKSHAFT Vol 8, No 1 (2025): Jurnal Crankshaft Vol.8 No.1 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v8i1.13953

Kebutuhan energi terbarukan dalam beberapa dekade terakhir semakin meningkat akibat dari keterbatasan sumber daya energi fosil dan isu lingkungan. Salah satu teknologi yang berpotensi besar dalam pemanfaatan energi terbarukan adalah kolektor panas surya. Penambahan sirip pada kolektor panas merupakan salah satu cara untuk meningkatkan unjuk kerja termal kolektor panas plat datar. Secara praktik dibutuhkan sirip pembagi aliran udara agar dapat menjangkau dan mengambil panas dari setiap sisi sirip kolektor panas. Hasil penelitian menunjukan sirip pembagi aliran dapat meningkatkan unjuk kerja termal kolektor panas plat datar bersirip. Sudut yang paling optimal dalam meningkatkan unjuk kerja termal kolektor panas plat datar bersirip pada penelitian ini adalah 30o.

Synergy Analysis of Biomass and Polystyrene Co-Pyrolysis Products Using a Microwave-Assisted Nazarrudin, Rizal; Chanief Hidayat, Nashrul; Wahyu Ayatullah, Maulana; Akbarsah, Anugrah
International Journal of Aviation Science and Engineering - AVIA Vol. 6 No. 2: (December, 2024)
Publisher : FTMD Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/avia.v6i2.140

This study aims to synergize pyrolytic oil products obtained through co-pyrolysis of biomass (palm shells) and food packaging waste (polystyrene) with the addition of a mixture of natural zeolite catalysts and CaO using a microwave-assisted. The main raw materials of palm shells and polystyrene are mixed with a ratio of 1:1 plus coconut charcoal as absorber 50% of the total main raw materials, and the catalyst mixture ratio is 1:1. This study used microwaves as a reactor with various power variations, namely 300 watts, 450 watts, 600 watts, and 800 watts. Analysis of pyrolytic oil products in the form of calorific value using a bomb calorimeter and chemical composition using mass spectrometry. The results showed that the optimal power to use was 600 W, with a calorific value (HHV) of pyrolytic-oil of 40.10 MJ/Kg, and a percentage of compound content of 99.19% dominated by aromatic compounds 17.83% and aliphatic 76.93% with high hydrocarbon content.

Comparison Study Between the Experimental and Finite Element Analysis (FEA) on a Static Load of Magnesium AZ31B as Biodegradable Bone Plate Material Wicaksono, Mahruri Arif; Sukmana, Irza; Akhmad Riszal; Hendronursito, Yusup; Nazarrudin, Rizal; Haviz, Muhammad
Jurnal Inovasi Teknologi Vol 5 No 2 (2024): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

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Biomaterials is an advanced material engineering technology that is used to help heal bone fractures or fractures. Currently, many biomaterials use materials such as titanium alloy, stainless steel, platinum, and chromium, but these materials cannot be degraded naturally so a second operation must be carried out to remove the installed biomaterial. Biomaterials are temporary in nature so when the bone returns to its original state, the biomaterial must be surgically removed. Research was conducted to obtain a design with a material that can be naturally degraded without causing toxicity. Magnesium AZ31B is a recommended candidate as a base material for degradable bone implants. Magnesium AZ31B material, it is expected to reduce or minimize the surgical removal of implant biomaterials. Bone plate geometry use plate bone dimension 150mm x 15mm x 3mm with variation 10 hole parallel and zigzag as well as with a bolt bone dimensions long 40 mm with pitch 1mm diameter 5mm. Test bending was conducted with ASTM E290-14 showing that on plate bone hole parallel with burden maximum 33,419 KN with a deformation maximum of 30.89 mm whereas for plate bone hole zig zag with the burden maximum 32,863 KN with deformation maximum big as 29.97 mm. From the study experimental that plate bone hole parallel have nature mechanic more tall compared with plate bone hole zig Zag although with the difference which is not significant. Whereas on simulation FEA plate bone hole parallel with burden 33,419 KN get results total deformation as big as 31,481 mm with von Mises stress 15,337 MPa, then for plate bone hole zig Zag with burden 32,863 KN with total deformation 32.466 mm and von Mises stress as big as 33,948 MPa. In testing by experiment and simulation FEA plate bone hole parallel get difference around 0.591 mm or 0.94% whereas for plate bone hole zig Zag in testing by experiment and simulation get difference around 2,893 mm or 4.60%.

Vehicle Safety System Integrated with GSM Network (Global System for Mobile Communications) on Vehicle Ignition System Riszal, Akhmad; Harun, Suryadiwansa; Burhanuddin, Yanuar; Martinus; Hamni, Arinal; Adi Saputra, Rizal; Nazarrudin, Rizal
Jurnal Inovasi Teknologi Vol 6 No 1 (2025): April
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

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This research aims to design and create a sms-based motor vehicle security system with an ATMega 8535 microcontroller. This research utilizes hand phone technology and microcontroller. Making this tool has an economical price to secure motorized vehicles. Important prototypes in making this tool are the ATMega 8535 microcontroller, GSM Modem and HP. In making this tool the first thing to make is to make a microcontroller program for the controller. Making this program uses CV Avr soft ware (Code Vision Avr). After the program is finished, the program is downloaded to the microcontroller. Control is done by the microcontroller when it gets input. The result of this research is to get a vehicle security system that is integrated by the ignition system on a motorcycle. The process of securing a motorized vehicle when it is stolen is, the security system will send sms information that the motorcycle is stolen, the alarm sounds and the ignition system is cut off. To turn off the alarm and start the motorcycle, the owner sends an SMS with the format *ALOF# to the security system and starts the motorcycle normally (Pull the front brake three times then position the key to ON mode).

KARAKTERISASI KONDUKTIVITAS TERMAL MATERIAL KOMPOSIT SERBUK ARANG DAN RESIN EPOXY DENGAN VARIASI KOMPOSISI Sallolo Suluh; Frans Robert Bethony; Eko Wahyu Saputra; Rizal Nazarrudin; Sabiqunassabiqun; Herman Pangloli
Strength : Jurnal Penelitian Teknik Mesin Vol. 1 No. 3 (2024): Desember 2024
Publisher : Universitas Pamulang Serang

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Material komposit berbasis serbuk arang dan serat alami telah menjadi perhatian utama dalam pengembangan material ramah lingkungan dengan sifat mekanis dan termal yang unggul. Penelitian ini bertujuan untuk mengkaji konduktivitas termal material komposit yang dibuat dari campuran serbuk arang tempurung kelapa, tempurung kemiri, sekam padi, serat pelepah pisang, dan resin epoxy sebagai matriks. Variasi komposisi material dilakukan untuk menentukan kombinasi terbaik yang menghasilkan konduktivitas termal optimal. Metode penelitian meliputi pencampuran bahan, pencetakan spesimen dengan cetakan standar, dan pengujian konduktivitas termal menggunakan metode steady-state. Lima variasi komposisi material diuji, yaitu 60/20/10/10, 50/30/10/10, 40/40/10/10, 30/50/10/10, dan 20/60/10/10, dengan angka menunjukkan persentase dari tempurung kelapa, tempurung kemiri/sekam padi, serat pelepah pisang, dan resin epoxy secara berturut-turut. Hasil penelitian menunjukkan bahwa variasi 60/20/10/10 menghasilkan konduktivitas termal tertinggi sebesar 0,9236 W/mK ketika tempurung kelapa digunakan sebagai bahan dominan. Sebaliknya, konduktivitas termal terendah sebesar 0,3532 W/mK ditemukan pada variasi 20/60/10/10 dengan sekam padi sebagai bahan dominan. Penurunan konduktivitas termal pada proporsi sekam padi yang tinggi dikaitkan dengan peningkatan porositas material. Kesimpulannya, kombinasi optimal untuk aplikasi yang memerlukan sifat termal baik adalah komposisi dengan dominasi tempurung kelapa. Penelitian ini memberikan kontribusi penting dalam pengembangan material komposit berbasis serat alami untuk aplikasi teknis yang memerlukan isolasi termal yang efisien. Kata Kunci : komposit, konduktivitas termal, serbuk arang, serat alami.

The Effect of Microwave Oven Power Variations on Co-Pyrolysis Process of Oil Palm Shells and Polystyrene: Pengaruh Variasi Daya Microwave Oven Terhadap Proses Co-Pirolisis Cangkang Kelapa Sawit dan Polistirena Nazarrudin, Rizal; Saptoadi, Harwin
Procedia of Social Sciences and Humanities Vol. 3 (2022): Proceedings of the 1st SENARA 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v3i.193

Indonesia has a very large area of oil palm plantations, one of which is the island of Sumatra. However, in processing and handling palm oil product waste in the form of palm shells, it has not been maximized. Therefore, the chemical decomposition process can play an important role in supporting waste management and sustainable energy use in Indonesia which is not yet optimal. In this research, the proper use of power will be tested with the help of microwaves as a reactor for the co-pyrolysis process of oil palm shells and polystyrene plastic. The purpose of this study was to determine the appropriate power to produce maximum co-pyrolysis products and to investigate the physical characteristics of the oil-pyrolytic products. The test uses a microwave oven which has a power variation of 300 W, 450 W, 600 W, and 800 W with the addition of a catalyst. The ratio of the composition of oil palm shells to polystyrene plastic is 1:1 with a total mass of 105 gr and using coconut shell charcoal as an activated carbon absorber. The pyrolysis temperature is 500 ℃, the nitrogen gas flow rate is 1.5 LPM, and the pyrolysis time is 60 minutes. Furthermore, testing the physical properties of the pyrolysis oil product in the form of density, acidity, and viscosity testing. The results showed that the optimal power to obtain oil-pyrolytic was 600 W with a product oil of 17.6%, and from the physical properties it had a low viscosity value of 2.55 mPa.s with a pH level of 6.6.

Penguatan Kompetensi Siswa SMK Jurusan Otomotif di Bandar Lampung Saputra, Rizal Adi; Kurniawan, Dondi; Sabiqunassabiqun; Nazarrudin, Rizal
Nemui Nyimah Vol. 4 No. 2 (2024): Nemui Nyimah Vol.4 No.2 2024
Publisher : FT Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/nm.v4i2.145

With the rapid advancement of automotive technology, there is a need to improve both educational quality and practical skills to enable students to compete in the workforce. The community service activities were carried out through hands-on training that prioritizes mastery of competencies in the automotive field, from understanding basic theories to practical work in solving problems and using work tools. Emphasis was placed on strengthening problem-solving skills in addressing motorcycle damage, a key component in the Automotive Vocational curriculum. The issues presented were case studies based on real motorcycle problems, where students were given time to resolve them (Problem Solving). The students' understanding was assessed through competency tests aligned with the standards and regulations related to motorcycle damage. The results of this service showed that many students successfully solved the problems presented, but they still faced challenges in applying the Standard Operating Procedures (SOP) that adhered to the provided regulations

Pengaruh Penggunaan Aplikasi Power BI dalam Analisis Produksi di Pabrik Karton Box XYZ di Provinsi Lampung, untuk Meningkatkan Efisiensi dan Pengambilan Keputusan Angga Darma Prabowo; Dondi Kurniawan; Sabiqunassabiqun; Rizal Nazarrudin; Nurcahya Nugraha; Eko Wahyu Saputra; Mochammad Resha; Saputra, Rizal Adi
Nemui Nyimah Vol. 5 No. 1 (2025): Nemui Nyimah Vol. 5 No. 1 2025
Publisher : FT Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/nm.v5i1.164

This study aims to analyze the impact of using Power BI in improving efficiency and decision-making at Karton Box XYZ Factory in Lampung Province. Using action research methodology, production data, machine efficiency, product quality, raw material usage, and response time data were collected and analyzed before and after the implementation of Power BI. The results show that the implementation of Power BI successfully increased daily production, machine efficiency, product quality, as well as reduced raw material waste and response time. With its ability to visualize data in real-time, Power BI assisted the factory in optimizing production processes and enhancing operational efficiency. This study concludes that the use of Power BI has a positive impact on the factory's operational performance, boosting competitiveness, and supporting faster and more accurate data-driven decision-making.

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