Article Per Year (5 Year)
p-Index From 2020 - 2025
0.778
P-Index
This Author published in this journals
All Journal JMES The International Journal of Mechanical Engineering and Sciences Sewagati
Dinny Harnany
Department Of Mechanical Engineering, Institut Teknologi Sepuluh Nopember
Arts Humanities Education Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
The Effect of Rice Husk as Additive in Injection Molding Process Dinny Harnany; I Made Londen Batan; Arif Wahjudi; Sylvia Ayu Pradanawati
The International Journal of Mechanical Engineering and Sciences Vol 6, No 2 (2022)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v6i2.14182

Abstract

This study investigated the moldability and the mechanical properties of bio-composite with rice husk as natural reinforcement. Natural materials that are abundant in nature can be used as reinforcement for polymer materials. Natural materials as reinforcement in plastic materials were used to obtain alternative materials in an injection molding process. With rice husk, polypropylene, and MAPP, four compositions of bio-composite materials were made and used as raw material injection molding process. The moldability from this material was observed through visualization of the product. The mechanical properties of the materials were observed by the tensile strength and impact test on the injection molding product. The result showed that these materials could be injected to form ASTM D638-03 Type V tensile test and ASTM D256-04 impact test specimens. Visually, the more rice husk on the bio-composite material, the darker the product color. The differences in tensile strength values decreased along with increased rice husk content. All bio-composite materials had roughly the same tensile strength value and were lower than polypropylene, except RH-5%. The impact value of bio-composites was lower than polypropylene impact value and tended to decline along with the increase in the rice husk content. Scanning electron microscope (SEM) analyzes were done on the fracture side of the impact specimen. Microscale voids decreased and were rarely found by adding rice husk to the material bio-composite. On the other hand, rice husk breakage and pullout phenomenon on bio-composite material were found.
Analisis Efektivitas Pelatihan Singkat 3D Modelling, 3D Scanning, dan 3D Printing pada Siswa SMA Achmad Syaifudin; Muhammad Khoirul Effendi; Agus Sigit Pramono; Yusuf Kaelani; Julendra Bambang Ariatedja; Dinny Harnany; Yohanes
Sewagati Vol 6 No 5 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (774.522 KB) | DOI: 10.12962/j26139960.v6i5.283

Abstract

Pada era revolusi industri 4.0, teknologi cetak tiga dimensi (3D printing) sedang berkembang pesat. Di Taiwan dan Korea Selatan, siswa sekolah menengah telah memiliki kemampuan menjalankan 3D printing. Sebaliknya di Indonesia, lulusan sekolah menengah belum memiliki kompetensi sejenis. Oleh sebab itu, tim Pengabdian Masyarakat dari departemen Teknik Mesin ITS memberikan pengenalan dasar teknologi cetak 3D untuk meningkatkan kompetensi siswa sekolah menengah. Pelatihan ini diberikan secara singkat kepada 29 siswa SMAN 1 Boyolangu, Tulungagung dengan persentase 25% berupa pemberian teori dasar dan 75% berupa praktik mengerjakan proses 3D modelling-scanning-printing. Berdasarkan analisis kuantitatif, pemahaman peserta meningkat sebesar 35.05% untuk materi 3D modelling dan 22.55% untuk materi 3D scanning dan printing. Adapun berdasarkan analisis kualitatif, hasil pencetakan produk 3D dengan metode 3D printing yang dikerjakan oleh peserta sudah cukup bagus. Hal ini menunjukkan bahwa kegiatan pelatihan singkat selama dua hari mampu meningkatkan kompetensi siswa SMA dalam memahami dasar teknologi manufaktur 3D printing.
Pemanfaatan Mesin Dehidrator Berbasis Mikrokontroler untuk Mengurangi Kadar Air Madu di Desa Kauman, Tulungagung Latifah Nurahmi; Dinny Harnany; M. Khoirul Effendi; Arif Wahjudi; I Made Londen Batan; Suhardjono; Sampurno; Fahmi Mubarok
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6900.621 KB) | DOI: 10.12962/j26139960.v7i3.512

Abstract

Desa Kauman, Tulungagung, termasuk daerah penghasil madu di Jawa Timur. Namun, para peternak madu masih banyak mengalami kendala dalam mengurangi kadar air dalam madu karena masih menggunakan metode konvensional. Tim Pengabdi ITS bersama dengan mitra UMKM Madu AG bekerja sama merancang mesin dehydrator madu. Kemudian, mesin tersebut diberikan kepada peternak lebah di Desa Kauman. Hal ini bertujuan agar para peternak dapat memanfaatkan mesin dehydrator madu untuk meningkatkan produktivitas produk madu. Syarat madu yang baik harus memilik kadar air tidak lebih dari 22%. Mesin dehydrator madu yang dirancang dalam kegiatan ini mampu mengurangi kadar air hingga 10% dari kadar air dari sebelumnya. Hal ini diharapkan dapat membantu peternak lebah untuk menghasilkan madu dengan kualitas yang lebih baik.
"Water-In-Salt" Electrolyte For High Temperature Aluminum Ion Battery Application Sylvia Ayu Pradanawati; Dinny Harnany; Faizal Fatah; Nur Layli Amanah
JMES The International Journal of Mechanical Engineering and Sciences Vol 7, No 2 (2023)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v7i2.18477

Abstract

This study focuses on examining aluminum chloride hexahydrate (AlCl3·6H2O) as an electrolyte salt in an Aluminum Ion Battery. The goal is to assess the effectiveness of AlCl3·6H2O as an electrolyte in an Aluminum Ion Battery, evaluate the battery's performance, and examine the anode and cathode properties of an Aluminum Ion Battery. Laboratory tests and literature analysis are the approaches used. Following cyclic voltammetry testing, it was shown that the water-in-salt electrolyte AlCl3 performed better than the 1M AlCl3 electrolyte. Compared to the 1M AlCl3 electrolyte, the hydrogen evolution reaction in the water-in-salt electrolyte AlCl3 has a smaller potential range. The cyclic voltammetry graph of an aluminum ion battery containing a water-in-salt AlCl3 electrolyte is noticeably smaller than that of an aluminum ion battery with a 1M AlCl3 electrolyte. It has been observed that the water-in-salt AlCl3 electrolyte requires more activation energy compared to the 1M AlCl3 electrolyte. Based on SEM-EDS data, using water-in-salt electrolyte AlCl3 for aluminum ion batteries is better as it does not cause significant defects in the anode and cathode.
Co-Authors Achmad Syaifudin Agus Sigit Pramono Arif Wahjudi Fahmi Mubarok Faizal Fatah I Made Londen Batan I Made Londen Batan Julendra Bambang Ariatedja M. Khoirul Effendi Muhammad Khoirul Effendi Nur Layli Amanah Nurahmi, Latifah Sampurno Suhardjono Suhardjono Sylvia Ayu Pradanawati Yohanes Yusuf Kaelani