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All Journal Machine : Jurnal Teknik Mesin International Journal of Research in Vocational Studies (IJRVOCAS) MACHINERY: Jurnal Teknologi Terapan Aptekmas : Jurnal Pengabdian Kepada Masyarakat
Dwi Arnoldi
Politeknik Negeri Sriwijaya
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Study Analysis Fuel from Plastic Waste Azharuddin; Dwi Arnoldi; Fenoria Putri; Kemas M. Fadhil Almakky; M. Ivan Davala
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 1 No. 3 (2021): IJRVOCAS - December
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (374.293 KB) | DOI: 10.53893/ijrvocas.v1i3.59

Abstract

The explosion of plastic-based waste (polymer) in the environment, as a result of its excessive use, so that this phenomenon causes damage to environmental ecosystems, water absorption is not optimal causes flooding, and polluting nutrients in the soil. Plastic is a polymer compound composed of the main elements, namely carbon and hydrogen. The best results in this study by using this tool have a physical appearance: yellow like premium fuel type "1.0" (color test results using the ASTM D1500 method), very pungent smelling liquid, thicker when compared to premium fuel types. And has specifications: Density value of 786.4 kg/m3, Sulfur Content 0.003% m/m, water content 282 ppm, CCI 53.4.
PENGENALAN PENGGUNAAN SIMULASI PENGECORAN BAGI USAHA COR LOGAM DI PALEMBANG Irawan Malik; Moch. Yunus; Dwi Arnoldi; Yogi Eka Fernandes
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 4 No 4 (2021): APTEKMAS Volume 4 Nomor 4 2021
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.09 KB) | DOI: 10.36257/apts.v4i4.3500

Abstract

Problems in metal casting include, among others, air cavity defects caused by use of pour plate and descending channel models which are directly used in sand molds; air or gas from sand mold or aluminum scrap liquid metal cannot escape through cavity between the sand grains during pouring process; river sand is in the form of crystalline sand grains which can affect fire resistance and low permeability in sand molds, consequently requiring large amounts of binder; and water content in river sand for making sand molds is less than 1.5% - 8% as a result, clay will experience a lack of binding power in the sand. Departing from the above problems, it is necessary to pay attention to design stages, especially in e field of casting product design, which currently uses a lot of software that can support businesses, such as Solidworks Computer Aided Design - Computer Aided Manufacturing software and casting simulation software such as Altair Inspire cast. Design of cast objects and simulation in preparation for making molds and core castings using Solidworks and Altair Inspire Cast software aims to obtain accuracy of the cast objects so that they do not require much finishing work and the simulation of casting process is expected to reduce casting failures as described. Essence of implementation of community service programs through (additional) assignment schemes for small industries Mandiri of metal cast in Palembang is how to provide theoretical knowledge of designing cast objects using CAD software and simulate the casting process which is usually used for students of study program D-IV in Mechanical Engineering of Production and Maintenance (TMPP) - State Polytechnic of Sriwijaya. to find out the best design model and casting process so as to minimize casting defects.
PENERAPAN INTERNET OF THINGS APLIKASI BLYNK PADA ALAT BANTU PRAKTIKUM FISIKA HUKUM HOOKE Safira Adelia Putri; Dwi Arnoldi; Adian Aristia Anas; Syamsul Rizal
Machine : Jurnal Teknik Mesin Vol 11 No 2 (2025): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/4c02wm35

Abstract

Penelitian ini bertujuan untuk merancang dan mengembangkan alat bantu praktikum Fisika Hukum Hooke yang terintegrasi dengan teknologi Internet of Things (IoT) menggunakan platform Blynk. Alat ini dirancang untuk mengatasi permasalahan dalam kegiatan praktikum konvensional, seperti ketidakakuratan pengukuran manual, keterbatasan alat, dan kurangnya efisiensi dalam pemantauan data secara real time. Pengujian dilakukan dengan menggunakan tiga variasi massa 0,2 kg, 0,25 kg, dan 0,3 kg serta tiga diameter pegas 1 cm, 1,5 cm, dan 2 cm. Data diperoleh melalui dua metode, yaitu pengukuran manual dan pengukuran otomatis berbasis IoT. Hasil menunjukkan bahwa alat bantu praktikum berbasis IoT mampu menampilkan data secara akurat dan real time, serta memiliki tingkat ketelitian yang tinggi dengan rata-rata ketelitian mencapai di atas 95%. Analisis statistik dengan ANOVA menunjukkan bahwa variabel massa dan diameter pegas berpengaruh signifikan terhadap nilai konstanta pegas (p < 0,05). Dengan demikian, alat bantu praktikum berbasis IoT ini dinilai efektif dalam meningkatkan efisiensi, akurasi, dan kemudahan pemantauan praktikum Hukum Hooke, serta memberikan alternatif pembelajaran fisika yang interaktif bagi mahasiswa.
PERANCANGAN ALAT BANTU PERFORASI SARANGAN DANDANG UNTUK PENGRAJIN RUMAHAN DENGAN PENDEKATAN QUALITY FUNCTION DEPLOYMENT (QFD) Irfan Prayogi; Dwi Arnoldi; Adian Aristia Anas
MACHINERY Jurnal Teknologi Terapan Vol. 7 No. 2 (2026): MACHINERY: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/machinery.v7i2.11793

Abstract

Industri rumahan pembuatan dandang di Kelurahan Bandung Kiri, Lubuklinggau masih melakukan proses pelubangan sarangan secara manual sehingga hasilnya kurang seragam dan kurang efisien. Penelitian ini bertujuan merancang alat bantu menggunakan metode Quality Function Deployment (QFD) melalui identifikasi kebutuhan pengguna, penyusunan House of Quality (HOQ), dan perancangan produk. Hasil perancangan menunjukkan tiga prioritas teknis utama, yaitu sistem dongkrak hidrolik (19,48%), efisiensi siklus pelubangan (15,67%), dan kemudahan pengadaan komponen (14,50%). Simulasi Finite Element Analysis (FEA) menunjukkan tegangan Von Mises maksimum sebesar 166,772 MPa pada gaya 87.853 N dengan Safety Factor (SF) sebesar 1,5, masih berada di bawah batas luluh ASTM A36 (250 MPa), sehingga desain dinyatakan aman dan layak diterapkan untuk meningkatkan produktivitas pengrajin.
Co-Authors Adian Aristia Anas Azharuddin Fenoria Putri Irawan Malik Irfan Prayogi Kemas M. Fadhil Almakky M. Ivan Davala Moch. Yunus Safira Adelia Putri Syamsul Rizal Yogi Eka Fernandes