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Ahmad Yani
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Sekolah Tinggi Teknologi Industri Bontang, Jalan Brigjen Katamso No 40 Kelurahan Belimbing Kecamatan Bontang Barat, Kota Bontang
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Jutek JAGO
Published by Sekolah Tinggi Teknologi Industri Bontang
ISSN : -     EISSN : 27983315     DOI : https://doi.org/10.53620/jtg
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering
Topik Jutek JAGO terkait dengan aspek Teknik Kimia dan Mesin, terkait dengan industri energi terbarukan, penelitian dan pengembangan, industri kimia, EPCC (Engineering, procurement, construction and commissioning), teknik manufaktur, teknik konversi energi, teknik konstruksi dan rekayasa material. Penetapan artikel yang dimuat di Jurnal Teknik JAGO melalui proses blind review oleh editor dan reviewer Jurnal Teknik JAGO dengan mempertimbangkan antara lain: relevansi dan kontribusi artikel terhadap perkembangan profesi dan praktik akuntansi serta pemenuhan persyaratan dasar publikasi jurnal. Redaksi dan reviewer memberikan masukan dan hasil evaluasi yang membangun kepada penulis artikel.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 7 Documents
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Search results for , issue "Vol. 3 No. 1 (2023): June" : 7 Documents clear
Pengaruh Vermicomposting Terhadap Kadar Pb Pada Biomassa Eceng Gondok (Eichhornia crassipes) Nurfiansyah Nurfiansyah; Sulfikar; Muhammad Arham Yunus
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.99

Abstract

The presence of water hyacinth in waters can be a threat to aquatic ecosystems. Its naturally fast growth and excess nutrients in the waters cause its growth to become uncontrollable. So it is necessary to handle the biomass and produce it. One thing that can be done is to turn it into organic fertilizer. The problem is, water hyacinth is a lead (Pb) hyperaccumulator plant. So that the biomass produced by water hyacinth contains a large amount of Pb. This study aims to see the effect of vermicomposting on the amount of Pb contained in water hyacinth biomass. The research began by converting water hyacinth biomass into a living medium for earthworms. Changes in Pb levels were observed before and after the earthworms were added. The results found a change with an average initial content of 2.7857 ppm to 2.0477 ppm. So from this study, it was found that the decrease in Pb levels was 26.4924% Keywords: waterhyacinth, hyperaccumulator,biomass, earthworm, vermicomposting.
Pengaruh Waktu Aktivasi Terhadap Karakterisasi Arang Aktif Tongkol Jagung dengan Menggunakan Aktivator H2SO4 Zakiyah Darajat; Mimin Septiani; Fitria Fitria
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.101

Abstract

Tongkol jagung telah banyak digunakan sebagai sumber arang aktif atau karbon aktif dengan berbagai cara sintesis karena mengandung selulosa, hemiselulosa, dan lignin dengan kadar yang besar. Arang aktif merupakan senyawa karbon yang daya absorpsinya ditingkatkan melalui proses karbonasi dan aktivasi. Penelitian ini bertujuan untuk mengetahui pengaruh waktu aktivasi terhadap karakterisasi arang aktif tongkol jagung meliputi bulk density, Bagian yang tersisa pada pemanasan 950 oC, dan uji daya serap arang aktif terhadap larutan Iod (I2). Pada penelitian ini digunakan variasi waktu aktivasi 6, 12, 18, 24, dan 36 jam dengan menggunakan H2SO4 sebagai aktivator. Hasil penelitian menunjukkan seiring bertambahnya waktu aktivasi, bulk density semakin berkurang, Bagian tersisa pada pemanasan 950 oC semakin bertambah, dan daya serap terhadap larutan Iod (I2) semakin bertambah, di mana waktu aktivasi yang optimum adalah 36 jam. Data karakterisasi arang aktif tongkol jagung sudah memenuhi SII 0258-88, kecuali pada pengujian daya serap terhadap larutan iod (I2). Kata kunci: tongkol jagung, arang aktif, karakterisasi
PEMANFAATAN BIJI PEPAYA (CARICA PAPAYA L.) SEBAGAI BIODIESEL DENGAN PROSES TRANSESTERIFIKASI IN SITU Almukmin Umar; Fitria Fitria
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.102

Abstract

Papaya plants have considerable potential and have not been widely developed, especially in the seeds because there is a high enough oil and protein content. The objective of this study was to investigate in situ transesterification process which allows direct production of biodiesel from papaya seeds. Changing conditions of the process variables studied were the volume of the methanol (100, 200, 300 mL) and time of process (15,30,45, 60, and 90 minutes) with a specified variables weight and water content of seed, catalyst, stirring speed, temperature and observable effect of the yield of oil extracted to form FAME. Volume of methanol and reaction time significantly affect the yield FAME. The highest FAME yield obtained on the volume of 300 mL methanol and 90 minutes time reaction (77,68%).
Pemanfaatan Limbah Produksi Biodiesel Buah Bintaro Sebagai Sumber Energi Terbarukan Muhammah Fathuddin; Eva Kurnia Yulyawan; Djoko Wahyudi
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.103

Abstract

The development of alternative energy sources is a crucial issue in overcoming energy and environmental challenges in the modern era. One of the efforts to deal with this challenge is to explore the potential for liquid smoke produced from bintaro fruit (Cerbera odollam) waste. This study aims to investigate the process of producing liquid smoke from bintaro fruit seed waste and to analyze the chemical composition of the liquid smoke. The main objective of this research is to assess the potential of liquid smoke from bintaro fruit waste as a sustainable alternative energy source. The research was carried out through a series of laboratory experiments which included the extraction of bintaro fruit seed oil and the conversion of this oil into liquid smoke through a pyrolysis process. The research variable was the temperature of the pyrolysis reactor starting at 300, 400, 500 and 600 oC with 3 kg of treated bintaro fruit raw materials for each variation. The results showed that the highest yield of charcoal product was 1765 grams obtained from a reactor temperature of 400 oC and the production of bio oil tended to increase following the increase in pyrolysis temperature and the highest amount of 190 mL was obtained at a temperature of 600 oC. The results of this study have significant implications for the development of alternative energy sources and organic waste management. In addition, this potential can also provide economic benefits for local communities. Based on the research findings, there is an opportunity for further steps to take advantage of the potential of liquid smoke from bintaro fruit waste as a sustainable and environmentally friendly alternative in meeting future energy needs.
Pengaruh Variasi Core Serat Daun Nanas Dan Temperatur PostCuring Pada Komposit Terhadap Kekuatan Bending Dan Struktur Mikro Ari Priantama Ari Priantama; Wawan Trisnadi Putra; Nanang Suffiadi Akhmad
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.104

Abstract

Rapid industrial progress and supported by various innovations that are increasingly using lightweight and strong materials, so that sandwich composite research is needed by utilizing existing natural fibers. Composite is an alloy of various materials which is then made using the Hand Lay Up method to create a material that has characteristics that are ductile, light and strong depending on the elements of the carrying material. The sandwich composite with pineapple leaf fiber core and 40% : 60% fiberglass skin which was processed at 70℃ for 8 hours yielded an average maximum stress of 547,721 Kgf. While the pineapple leaf fiber core and fiberglass skin 50% : 50% at a temperature of 80℃ get an average maximum stress of 437,156 Kgf and at a composition of 60% : 40% temperature 90℃ an average maximum stress is obtained of 225,882 Kgf. Furthermore, at the lowest stress the results of the bending test at a temperature of 70℃ the average bending test value is 312,156 Kgf, in the micro tests carried out it can be seen that there are still quite a lot of cavities at high temperatures causing the bending value to decrease, the higher the temperature and the blend of fibers Pineapple leaf that is applied the lower the bending strength value is done, so it can be concluded that the pineapple leaf fiber does not give the maximum effect to the composite material.Keywords: Sandwich Composite, Post-curing, Pineapple Leaf Fiber, Resin, Bending Test, Micro Structure Test.
Rancang Bangun dan Pengujian Alat Praktikum Solar Cell Sebagai Sarana Pembelajaran Mahasiswa Teknik Mesin STTI Bontang Ashar Ashar; Ahmad Yani
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.107

Abstract

Salah satu potensi alam sebagai sumber energi listrik adalah energi tenaga matahari. Matahari merupakan sumber energi utama bagi sebagian besar proses-proses yang terjadi dipermukaan bumi. Sel matahari merupakan piranti yang dapat mengkonversi cahaya matahari menjadi energi listrik. Tujuan dari penelitian ini adalah untuk mengetahui menghasilkan alat praktikum solar cell sebagai sarana pembelajaran mahasiswa teknik mesin Sekolah Tinggi Teknologi Industri Bontang (STTI Bontang). Metode penelitian yang digunakan adalah metode eksperimen dengan membuat dan merakit alat praktikum terlebih dahulu dan melakukan pengujian terhadap alat yang telah dibuat. Dari hasil pengujian instalasi pembangkit listrik tenaga surya kapasitas 50 Watt Peak (WP) dapat diambil kesimpulan bahwa Alat praktikum Pembagkit Listrik Tenaga Surya (Solar Cell) dibuat skala laboratorium dengan modul panel surya yang disesuaikan untuk mendapatkan nilai parameter pengukuran seperti intensitas cahaya, tegangan panel surya, tegangan keluaran DC. Hasil pengukuran daya tertinggi saat pengukuran jam 11:30 dengan intensitas cahaya 991000 lux, tegangan panel surya 15,3 volt, Beban Total 1952,88 Wh, dan untuk hasil pengukuran terendah pada saat jam 16:00 dengan intensitas cahaya 118000 lux, tegangan panel surya 12,7 volt, Beban Total 252,95 Wh. Dari hasil penelitian yang dilakukan didapat kan nilai efisiensi 99.13%
Pengaruh Penggunaan Pipa Dengan Diameter Berbeda Pada Proses Pengisian Tandon Air Terhadap Tekanan dan Kecepatan Pada Fluida Cair Dengan Kapasitas 3300 Liter: Pengaruh Penggunaan Pipa Dengan Diameter Berbeda Pada Proses Pengisian Tandon Air Terhadap Tekanan dan Kecepatan Pada Fluida Cair Dengan Kapasitas 3300 Liter suli, suliono; Tomi Juniawan; Wildan Al-Ghifari; Ahmah Yani
Jurnal Teknik Juara Aktif Global Optimis Vol. 3 No. 1 (2023): June
Publisher : STTI Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/jtg.v3i1.118

Abstract

Penelitian ini mengeksplorasi metode pengukuran dan manajemen tekanan air dalam sistem tangki air untuk memenuhi kebutuhan masyarakat dan industri. Tekanan air yang tepat krusial untuk pasokan yang konsisten dan memadai bagi pengguna akhir, sementara ketidakseimbangan dapat merusak pipa dan menciptakan ketidaknyamanan. Fokus penelitian adalah analisis CFD terhadap pipa dan tangki menggunakan Software SolidWorks Flow Simulation. Variasi diameter pipa PVC 1 inci dan ¾ inci dengan tinggi pipa tetap 7 meter menjadi fokus analisis. Hasil menunjukkan tekanan maksimum saat pengisian terjadi pada pipa Output 1 inci dan ¾ inci dengan perbedaan 9 kPa. Kecepatan aliran maksimum terjadi pada pipa Output 1 inci dan ¾ inci dengan perbedaan Penelitian ini dapat disimpulkan bahwa pipa 1 inci lebih efisien dan stabil dalam menjaga tekanan dan kecepatan aliran dibandingkan dengan pipa ¾ inci.

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