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All Journal INOVTEK POLBENG International Journal of Marine Engineering Innovation and Research Educivilia: Jurnal Pengabdian Pada Masyarakat Sewagati
Alfanda, Benedicta Dian
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Pelatihan Manufaktur Komposit sebagai Produk Kerajinan Tangan pada Industri Rumahan Nugraha, Anggara Trisna; Primaningtyas, Widya Emilia; Abdullah, Kharis; Wulandari, Kiki Dwi; Alfanda, Benedicta Dian; Pramesti, Lely; Cahyono, Luqman; Pambudi, Dwi Sasmita Aji; Sumardiono, Sumardiono
Educivilia: Jurnal Pengabdian pada Masyarakat Vol. 1 No. 2 (2020): Educivilia: Jurnal Pengabdian pada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.25 KB) | DOI: 10.30997/ejpm.v1i2.2943

Abstract

Berbagai kerajinan tangan dapat dikembangkan di masyarakat, salah satunya kerajinan tangan berbahan komposit yaitu menggunakan resin sebagai bahan utamanya. Metode pengecoran atau manufaktur bahan komposit ini memiliki variasi sesuai dengan resin yang digunakan atau peruntukkan komposit itu sendiri. Metode manufaktur ini dapat diaplikasikan oleh masyarakat dengan mudah, sehingga komposit yang dihasilkan dapat dimanfaatkan sebagai kerajinan tangan yang memiliki nilai tambah. Pelatihan metode manufaktur material komposit sebagai kerajinan tangan ini diberikan kepada Komunitas Riverside, Desa Suko, Kecamatan Sukodono, Kabupaten Sidoarjo. Pada prinsipnya pelatihan ini mengaplikasikan metode pengecoran sebagai dasar teknis aplikasi kerajinan tangan berbahan komposit. Pelatihan dilakukan dengan memberikan pengetahuan dasar tentang bahan resin dalam bentuk ceramah atau presentasi, kemudian dilakukan praktek metode manufaktur material komposit tersebut sehingga menghasilkan kerajinan tangan yang bernilai tinggi. Hasil kerajinan tangan berbahan komposit yang dihasilkan antara lain adalah gantungan kunci, bros, dan magnet hiasan kulkas.
Escalation of Capacity and Quality PS60 Casting Production by Gating System Modification Primaningtyas, Widya Emilia; Purnomo, Dhika Aditya; Ariani, Silvi; Wulandari, Kiki Dwi; Alfanda, Benedicta Dian; Baiti, Risa Nurin
International Journal of Marine Engineering Innovation and Research Vol 9, No 1 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.20125

Abstract

A ship tank’s ventilation pipes protector, called PS60, is produced by an investment casting process using CF8M material. Shorter time production for PS60 products, occurred due to the rise of PS60 demand, resulting non class casting product quality. Reported that 15% of PS60 defective products were shown from each production group. Porosity defects are the most common defects found. Recalculating riser’s, runners’s, and ingates’s dimensions, then remodeling designs a mold gating system done in order to reduce the percentage of defective products and increase production capacity. Remodeling gating system and casting simulation done by ProCast 2018 software using New Advanced Porocity Module (NAPM). The casting simulation output was porosity defects location and percentage, which were further analyzed. The product produced using a mold Gating system with a new layout, had 314.73 cm3 of empty part in the mold cavity which was identified as a porosity defect which was 4.58% of the total volume of the cast product. The total value of  the porosity after remodeling decreases by 2.39% from the existing product. 93.3% of the cavity inside the product is categorized as macroscopic porosity defects that are centralized in the riser and pouring basin areas, where in the casting product finishing process, these areas will be removed. Modification of the Gating System in PS60 mold escalates twice of PS60 capacity production than the origin.
Application of the finite element method for evaluating the stress due to operating load in high energy piping system Mahardhika, Pekik; Husodo, Adi Wirawan; Budiyanto, Ekky Nur; Alfanda, Benedicta Dian; Sandora, Rina
International Journal of Marine Engineering Innovation and Research Vol 10, No 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.22765

Abstract

The stress value of the piping system will change during operating conditions. The stress value affects the integrity of the piping system. Excessive stress will cause deformation and damage to the piping system. The operating condition parameters of the piping system are temperature and pressure. The High-Energy Piping (HEP) system is subjected to high pressures and temperatures, which can cause significant stresses on the piping components. So stress analysis needs to be carried out to ensure that the piping system has strength and flexibility. The Cold Reheat Pipe (CRP) steam line is one of the High-Energy Piping Systems in this steam power plant. CRP consists of CRP BS 130 and CRP BS 131. This paper is about evaluating the stress due to operating loads in 2024 (temperature, pressure, and remaining thickness) for steam lines on the high-energy piping system using the finite element method and refers to ASME B31.1. The output stress values in the piping system in this paper consist of stress due to sustained load, stress due to thermal load, and hoop stress. The CRP BS 130 modeling results show the maximum stress due to sustained load (166.6 kg/cm2), the maximum stress due to the thermal load (112.8 kg/cm2), and the maximum hoop stress (855.6 kg/cm2). The CRP BS 131 modeling results show the maximum stress due to sustained load (974.2 kg/cm2), the maximum stress due to the thermal load (123.5 kg/cm2), and the maximum hoop stress (938.9 kg/cm2). The results of the stress evaluation due to the operating load were still below the allowable stress and are still permitted by the ASME B31.1 Code. 
Co-Authors Abdullah, Kharis Alif Nur Rochmad Anggara Trisna Nugraha Ardhyananta, Hosta Ariani, Silvi Budiyanto, Ekky Nur Cahyono, Luqman Diah Susanti Dwi Sasmita Aji Pambudi Elok Amaylia Swasthika Candra Haniffudin Nurdiansah Hariyati Purwaningsih Husodo, Adi Wirawan I Putu Shindu Asmara Kiki Dwi Wulandari Kusuma, George Endri Lukman Noerochim Mahardhika, Pekik Pramesti, Lely Primaningtyas, Widya Emilia Purnomo, Dhika Aditya Risa Nurin Baiti Rohmannudin, Tubagus Noor Sandora, Rina Santoso, Budhi Sumardiono Sumardiono Sumardiono Sumardiono, Sumardiono Wahyuniarsih Sutrisno Wulandari, Kiki Dwi Wulandari, Kiki Dwi Yeny Widya Rakhmawati