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Sigit Iswahyudi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Analisis Kinerja Mesin Pencuci Ubi Jalar dengan Metode Rotary Berkapasitas 25 Kg pada UMKM Grubi Manis Cahyo sejati, Cahyo; Iswahyudi, Sigit; Dewi, Rany Puspita
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

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Abstract

Sweet potato (Ipomoea Batatas) is an agricultural commodity with high economic value that is widely used as a raw material for processed products by Micro, Small, and Medium Enterprises (MSMEs), including the sweet potato industry. In the processing process, the washing stage plays an important role in determining the level of cleanliness of the raw materials and product quality. However, at the MSME scale, sweet potato washing is generally still done manually using human power through the gejruk method, which is soaking the sweet potatoes in water accompanied by repeated mechanical force using foot treads. This method has limitations such as relatively long processing time, dependence on the operator, non-uniform levels of cleanliness, and the potential for low hygiene of the washing results. This study aims to design, build, and test the performance of a rotary-based sweet potato washing machine as an alternative to manual washing. The research methods include mechanical design, component manufacturing, and machine performance testing. The sweet potato washing machine is designed to work horizontally using a rotating tube system equipped with an internal screw, driven by a 5.5 hp gasoline motor, with a washing capacity of 25 kg in one wash, and a processing time of 7 minutes, which obtained excellent cleanliness results. The test results show that the rotary method machine is able to increase the efficiency of washing time and produce sweet potatoes that are cleaner and more hygienic than the manual method.
Perancangan dan Pembuatan Prototype Sistem Pemadaman Api Otomatis Berbasis Mikrokontroler Pada Ruang Baterai Bus Listrik setiawan, hendrik; Iswahyudi, Sigit; Purnomo, Sigit Joko
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

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This study aims to design and develop a prototype of a fire suppression system for electric bus bateery compartments to mitigate the risk of thermal runway, shich can lead to catastrophic battery fires. The desin integrates an Arduino uno base controller eith themal and MQ-2 smoke sensors, connected to a fire suppression installation utilizing dry powder as the extinguishing agent. Testing results demonstrate that the system operates responsively and systematically the cooling fa activates 40℃ for thermal management, while the emergency fire suppression via a solenoid valve triggers automatically when the temperature reaches 60℃ or smoke density hits 200 ppm. The primary advantage of this prototype lies in its multi layered protection, combining proactive battery temperature conditioning with an automated fire extinguishing mechanism. This system significantly enhances the operational safety standards for electric vehicles by providing a reliable defense against battery relates hazards.
Co-Authors Adityo Noor Setyo Hadi Dharmo Agung Trihasto Agus Suprihanto Ahmad, shofiyuddin Ali Arif Rahman Arif Rahman Saleh Bagus Yustia Cahyo Sejati Cahyo sejati, Cahyo Darmo, Adityo Noor Setyo Hadi Dewi, Rany Puspita Dwicahya, Muhammad Ridwan Rio Dzikron Muchlisin Endang Mawarsih Fajarningrum, Nurmala Dyah Hendrik Setiawan, Hendrik Herru Santosa Budiono Kun Suharno Muhaimin, Rijal Arif Nafi', Zuhdi Baghiz Zain Nur Hayati Nurhadi Prayoga, Kurniawan Bayu Purnomo , Sigit Joko Rahman Saleh, Arif Rany Puspita Dewi Rany Puspita Dewi Rizky Hermawan Setyawan Bekti Wibowo Setyawan, Fajar Andre Sigit Joko Purnomo Sigit Mujiarto Sutrisno, Seno Suyitno Suyitno Syarif Hidayat Taufik, Ikhwan Trisma Jaya Saputra Trisma Jaya Saputra Wandi Arnandi