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All Journal CHEMICA Jurnal Teknik Kimia Konversi G-Tech : Jurnal Teknologi Terapan UNM Journal of Technology and Vocational
Muhammad Irsan B
Politeknik Kotabaru, Indonesia
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Engineering Social Sciences Other

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PRODUKSI BAHAN BAKAR PADAT DARI TEMPURUNG KELAPA DENGAN METODE HYDROTHERMAL TREATMENT Muhammad Irsan; Ahmad Tawfiequrrahman Yuliansyah; Suryo Purwono
Konversi Vol 8, No 1 (2019): April 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v8i1.6505

Abstract

Abstrak- Hidrotermal treatment merupakan salah satu proses konversi biomassa menggunakan air sebagai media sekaligus reaktan dalam prosesnya. Pada penelitian ini, dilakukan proses hidrotermal terhadap tempurung kelapa, yang merupakan salah satu sumber biomassa yang jumlahnya cukup besar di Indonesia. Eksperimen dilakukan dengan menggunakan autoklaf yang beroperasi secara batch dan  dilengkapi dengan pengaduk, sensor temperatur dan tekanan. Dalam penelitian ini digunakan variasi berupa perbandingan Biomass Water (B/W ratio) 1:20 dan suhu 240, 270, 300, 330 0C. Tempurung kelapa yang sudah dihaluskan (berukuran -32+48 mesh) sebanyak 7,5 gram dicampur dengan 150 ml air. Kemudian dimasukkan dalam autoklaf yang kemudian ditutup rapat. Sebelum dimulai ekperimen, udara yang ada di dalam autoklaf di-purge menggunakan gas N2 sebanyak tiga kali, kemudian tekanan di dalam autoklaf dinaikkan menjadi 10 bar juga dengan memasukkan gas N2. Setelah itu, pemanas dinyalakan untuk mencapai suhu yang diharapkan, dan dipertahankan selama 30 menit, dan kemudian pemanas dimatikan. Setelah autoklaf dingin, campuran dikeluarkan dari dalam autoklaf dan kemudian disaring dengan bantuan pompa vacuum. Padatan yang tersaring kemudian dihitung yield-nya dan dianalisis dengan proximate dan ultimate analysis. Dari hasil penelitian tersebut diperoleh hasil bahwa semakin tinggi suhu yang digunakan maka semakin rendah yield produk arang yang dihasilkan. Yield yang diperoleh yaitu 50,60% (240 0C) dan 32,44% (330 0C). Hasil penelitian juga menunjukkan bahwa kandungan carbon dalam padatan naik, diiringi dengan penurunan kandungan oksigen yang menyebabkan naiknya nilai kalor produk padatan. Nilai kalor tertinggi dicapai pada suhu 330 0C yakni sebesar 6.282 cal/g. Kata kunci: hidrotermal, biomassa, yield, nilai kalor.
The Effect of Operating Temperature on the Yield of Liquid Products in the Pyrolysis Process of Used Tires into Fuel Oil Muhammad Irsan B; Hasbi Assiddiq S.
CHEMICA: Jurnal Teknik Kimia Vol 9, No 2 (2022): August 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v9i2.22309

Abstract

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Rancang Bangun Panel Auto Transfer Switch (ATS) Pada Sistem Hybrid PLN – Panel Surya Berbasis Timer Switch M. Ashar Tahir; Muhammad Irsan B
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3889

Abstract

Design of an Auto Transfer Switch (ATS) Panel on a Hybrid PLN Sistem – Timer Switch Based Solar Panel. Along with the times, modern technological equipment that is present today is very helpful for human life. Using the MCB, timer, contactor, panel box. The results of the study obtained electric current data from PLN when using a lamp load of 5, 10, 15, 20, 25 watts respectively, namely 0.03, 0.06, 0.09, 0.12, 0.15 A with a calculated voltage of 166 Volts. The current from the solar panel when using a light load of 5, 10, 15, 20, 25 watts respectively is 0.03, 0.06, 0.09, 0.13, 0.16 A with a calculated voltage of 166, 153 and 156 Volts. The lag time for moving from PLN to solar panels is 1.60 seconds. Savings using this hybrid sistem is 19,468 rupiah.
TRAINER RANGKAIAN CONTROL MENGGUNAKAN SISTEM FORWARD REVERSE PADA MOTOR LISTRIK 3 PHASE SEBAGAI MEDIA PEMBELAJARAN DI JURUSAN TEKNIK LISTRIK POLITEKNIK KOTABARU M. Ashar Tahir; Muhammad Irsan B
UNM Journal of Technology and Vocational Volume 8, Issue 1, February (2024)
Publisher : Program Studi S2 Pendidikan Teknologi dan Kejuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ujtv.v8i1.1693

Abstract

The forward reverse circuit is an electric motor control circuit whose function is to provide current to the electric motor or elmot. So that the electric motor can rotate to move forward and backward to move a machine.. The aim of this research is to determine the design, working methods and test results on a 3 phase electric motor forward reverse circuit.The data collection method for this research is observation, namely collecting information from observations or proving the truth of a research design being carried out, the literature study method looking for theoretical references that are relevant to the problem in accordance with the writing of the final assignment, the experimental method is carrying out an experiment to observe the process and The results can then be drawn to conclusions and the waterfall method is a design development model where each stage is carried out sequentially from top to bottom.The results of this study obtained a design by selecting tools and materials for the forward reverse circuit on a 3 phase electric motor. Electric current, obtained from the forward system circuit in the R phase 05.65 A, S phase 06.28 A and T phase 06.09 A and the voltage obtained in the R to S phase 396.5 V, S to T phase 400.3 V and the T to R phase is 387.5 V and the power produced is 811.1278 watts and the speed produced by a 3 phase electric motor using a forward system circuit is 1284 rpm. Electric current, obtained from the reverse system circuit in the R phase 06.07 A, S phase 05.85 A and T phase 06.02 A and voltage, obtained in the R to S phase 400.5 V, S to T phase 398.8 V and the T to R phase is 389.5 V and the power produced is 815.2452 watts and the speed is produced by a 3 phase electric motor using a reverse system circuit of 1278 rpm.
Co-Authors Ahmad Tawfiequrrahman Yuliansyah Hasbi Assiddiq S M. Ashar Tahir M. Ashar Tahir Suryo Purwono