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Yadi Heryadi
Sekolah Tinggi Teknologi Wastukancana
Computer Science & IT Decision Sciences, Operations Research & Management Industrial & Manufacturing Engineering Mechanical Engineering Other

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ANALISA PANAS OPTIMAL CAWAN PEMBUATAN SURABI UNTUK JENIS SURABI POLOS DAN SURABI ONCOM Jatira Jatira; Yadi Heryadi; Ihfan Nur Fahrudin
Jurnal Teknologika Vol 12 No 2 (2022): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v12iNo 2.237

Abstract

ABSTRAK Surabi adalah jajanan tradisional yang dijajakan pinggir jalan, biasanaya surabi dimasak menggunakan cawan yang berbahan baku tanah liat dan menggunakan kayu bakar sebagai bahan bakarnya. Dan biasanya hasil pematangan menggunakan bahan kayu ini menghasilkan hasil kematangan yang berberda beda , oleh karena itu perlu diadadakan penelitian tetang efisiensi perpindahan panas pada cawan surabi untuk mengetahui di suhu manakah surabi dapat matang dengan maksimal. Untuk itu penyusun menggunakan 2 jenis surabi sebagai objek penelitian yaitu surabi jenis oncom dan surabi jenis polos dengan melakukan 6 kali pengambilan data terkait temperature yang di butuhkan untuk mematangkan surabi dengan 3 kali pengambilan data terkait temperature yang dibutuhkan untuk mematangkan surabi jenis oncom dan 3 kali pengambilan data terkait temperature yang dibutuhkan untuk mematangkan surabi jenis polos menggunakan thermometer gun sebagai alat untuk mengecek temperature.setelah mendapatkan suhu awal yang dbutuhkan cawan untuk mematangkan surabi kemudian penyusun melakukan perhitungan laju perpindahan panas q knduksi dan q konveksi ,Dari analisis yang didapat hasil yang berbeda beda dari hasil perhitungan pada q konduksi untuk surabi jenis oncom ( 2957,61 W, 2953,29 W dan 2964,10 W) dan q konduksi untuk surabi jenis polos ( 2920,86 W, 2933,83 Wdan 2927,34 W) dan hasil q konveksi untuk surabi jenis oncom (3073,89 W,3059,84 Wdan 3080,63 W) dan hasil q konveksi surabi jenis polos adalah (2941,12 W, 2987,01 W dan 2965,26 W) Kata kunci: Tanah liat, Laju perhitungan panas , Surabi polos dan surabi oncom.
Desain Dies Proses Piercing dan Shearing pada Pembuatan Clamping Irwan Suriaman; Risky Maulana; Choirul Anwar; Jatira; Yadi Heryadi; TB. U. Subekhi; Dede A Rajab
Jurnal Teknologika Vol 16 No 1 (2026): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v16i1.676

Abstract

A trolley fabrication company that implements a make-to-order system in the production process. Of the several types of trolley models, one of them is the mesh model trolley where one of the components uses a clamp plate. Where the clamp plate functions to bind one component to another so that the mesh trolley can function more effectively. It is made using a press machine with Punch and Dies. In making clamping, the process used is shearing and piercing. The selection of dies will be based on the practicality of the product manufacturing process, as well as the relatively cheaper cost of making dies. In the manufacturing process of this product, a single compound die will be used. The shearing and piercing processes are only one process, so it can save a lot of time and costs. For this die planning process, the work includes the amount of cutting force, the required machine capacity, clearance, punch dimensions, dies dimensions and supporting tools used. The material used to make clamping is SPCC SD with a thickness of 3 mm. The machine capacity used is 25 tons. The cutting operational force for the shearing process is 62361.6 N, for the piercing hole process is 20267.5 N. So by using a separately made punch contour design, it can make it easier during the maintenanceprocess and the production process can be carried out in bulk.
Perancangan Sistem Solar Panel Tracker Menyesuaikan Kondisi Pancaran Sinar Matahari Muhammad Syahrul Rizal; Rohman; Jatira; Choirul Anwar; Yadi Heryadi; Irwan Suriaman
Jurnal Teknologika Vol 16 No 1 (2026): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v16i1.683

Abstract

Solar energy is one of the most promising and inexhaustible sources of renewable energy. Solar panels, as the primary devices for converting solar energy into electrical energy, have been widely utilized. However, issues related to the efficiency of these panels remain. Panels installed in a fixed position can only optimally absorb sunlight at a specific time of day, whereas the sun’s position shifts dynamically from east to west throughout the day. This study discusses an effective and efficient solar tracker mechanism that enables the panel to follow the sun’s movement throughout the day. The results of the study indicate that the design of a single axis solar tracker mechanism (east to west) with a target rotation of 180° over 12 hours or 15° per hourincrements requires a DC motor with a speed of 1400 rpm, an internal gearbox with a ratio of 80:1, and an external gear with a ratio of 12:1, resulting in a total gear ratio of 960:1. Consequently, the final output speed of the motor is reduced to 1458 rpm, meaning the motor only needs to be active for approximately 10.26 seconds to rotate the panel by 15° per hour.
Co-Authors Choirul Anwar Dede A Rajab Ihfan Nur Fahrudin Irwan Suriaman Jatira Jatira Jatira Muhammad Syahrul Rizal Risky Maulana Rohman TB. U. Subekhi