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All Journal Turbo : Jurnal Program Studi Teknik Mesin International Journal of Engineering, Science and Information Technology
Aswar Aswar
Akademi Teknik Soroako
Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Analisa Pengaruh Metode Pengurangan Kadar Air terhadap Kualitas Pemipilan Jagung menggunakan Mesin Pemipil Type Spiral Rotary Aswar Aswar; Simon Parekke; Ichsan Ristiawan; Zulkarnain Arifin; Muhammad Fathirahman; Dwilma Shopie; Bambang Surono; Akhmad Syarief
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4539

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh pengurangan kadar air terhadap kualitas pemipilan jagung menggunakan mesin pemipil tipe spiral rotary. Jagung hibrida Bima 9 diuji dengan empat perlakuan pengeringan yang berbeda, yaitu tanpa pengeringan (S0), dijemur selama 8 jam (S1), dioven selama 1 jam pada suhu 90°C (S2), dan dioven selama 2 jam pada suhu 90°C (S3). Sampel jagung dipipil menggunakan mesin pemipil tipe spiral rotary, dan hasil pemipilan dianalisis berdasarkan efisiensi mesin, kualitas pemipilan, dan kerusakan biji. Hasil penelitian menunjukkan bahwa pengurangan kadar air meningkatkan efisiensi mesin dan kualitas pemipilan, dengan kadar air 18.3% (S3) menghasilkan rata-rata efisiensi mesin tertinggi sebesar 85% dan pemipilan yang bersih, meskipun dengan sedikit kerusakan pada biji. Kadar air yang lebih tinggi, seperti pada S1 (24.4%), menghasilkan efisiensi mesin yang rendah dan banyak biji yang tertinggal pada tongkol. Penelitian ini menyarankan bahwa kadar air optimal untuk pemipilan jagung menggunakan mesin pemipil spiral rotary adalah sekitar 18–22%. Temuan ini memberikan kontribusi dalam meningkatkan efisiensi pemipilan jagung di industri pengolahan pakan ternak.
Pengujian Eksperimental Keausan Bahan Alumunium, Tembaga dan Baja Karbon Menggunakan Uji Keausan Skala Laboratorium Type Pin On Disc Aswar Aswar; Simon Parekke; Harjuma Harjuma; Bambang Surono; Sulis Dri Handono
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4677

Abstract

Keausan menentukan kinerja dan umur pakai komponen mekanik. Studi ini mengevaluasi ketahanan aus aluminium, tembaga, mild steel, alloy steel, dan stainless steel menggunakan tribometer Pin-on-Disc skala laboratorium pada gesekan kering. Spesimen silinder (Ø10mm×30 mm) diuji pada kecepatan 290 rpm, lintasan 150 m, dengan dua variasi beban yaitu 3,5 N dan 4,0 N. Laju keausan spesifik dihitung dari perubahan massa dan beban, disertai observasi makroskopik pola keausan. Hasil menunjukkan perbedaan nyata antar material: stainless steel terbaik dengan laju keausan terendah 1,1×10⁻5 cm³/N·m dan pola abrasi ringan. Mild steel dan alloy steel menunjukkan stabilitas terhadap peningkatan beban dengan respon keausan rendah, masing-masing 3,9% dan 5,0%. Aluminium memiliki laju keausan tertinggi dan respons hingga 19,9%, dengan indikasi delaminasi serta akumulasi serpih aus. Korelasi antara data kuantitatif dan morfologi permukaan menegaskan bahwa kombinasi kekerasan tinggi, keuletan memadai, dan stabilitas lapisan oksida merupakan penentu utama ketahanan aus.
Development of Plastic Shredder Technology to Support Plastic Waste Reduction Harjuma Harjuma; Abdul Tahir; Sirama Sirama; Aswar Aswar
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.643

Abstract

The plastic waste problem in Indonesia has reached a severe level. Data from the National Waste Management Information System shows that Indonesia produces around 17 million tons of plastic waste yearly. However, only approximately 66.47% of this plastic waste undergoes recycling, with the remainder ending up in landfills or polluting the sea. This condition places Indonesia in second place in the world after China in terms of the amount of plastic waste produced, making it a country with a plastic waste emergency. This article discusses the development of plastic recycling machine technology as a solution to overcome the plastic waste problem in Indonesia. With a production of around 17 million tons of plastic waste per year, Indonesia faces significant challenges in plastic waste management. Low efficiency often constrains the effectiveness of plastic recycling as a solution. Therefore, this study aims to design and improve the efficiency of a plastic shredder machine. This machine uses specially designed rotating blade technology to produce high-precision plastic flakes. Additionally, we have updated the transmission system to reduce vibration and implemented other innovations to enhance the machine's capacity to shred various types of plastic. We expect this machine to decrease greenhouse gas emissions from the recycling process and lower operational costs. This study shows that the developed plastic shredder machine can work effectively and efficiently, meeting the research objectives of producing plastic flakes quickly. Thus, we expect this machine to significantly reduce plastic waste in Indonesia and support environmental conservation efforts.
Co-Authors Akhmad Syarief Dwilma Shopie Harjuma Harjuma Harjuma Harjuma Ichsan Ristiawan Muhammad Fathirahman Simon Parekke Simon Parekke Sirama Sirama Sulis Dri Handono Surono, Bambang Tahir, Abdul Zulkarnain Arifin