Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Jurnal Konversi Energi dan Manufaktur
Subeno, Agus
Unknown Affiliation
Aerospace Engineering Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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

Found 4 Documents
Search

 1 
OPTIMASI DESAIN ALAT PENUKAR KALOR TIPE SHELL AND TUBE PADA PROSES PRODUKSI CHILI SAUCE Agus Subeno; Yogi Sirodz Gaos
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 10 No 1 (2020): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v10i1.1356

Abstract

Untuk memenuhi kebutuhan chilli sauce yang terus meningkat, diperlukan penambahan alat penukar kalor untuk memproduksinya. Perancangan alat penukar kalor yang baru ini dilakukan terlebih dahulu untuk mengurangi biaya produksi dibandingkan lansung membeli alat penukar kalor yang sudah jadi. Optimasi desain APK shell and tube ini dilakukan dengan metode full factorial menggunakan empat variable bebas dan tiga level eksperimen, sehingga diperoleh 81 kali hitungan eksperimen. Pada tahap selajutnya hasil hitungan manual yang optimum dilakukan validasi dengan software HTRI versi 7 berlisensi. Hasil optimasi full factorial didapatkan nilai koefisien perpindahan kalor bersih (Uc) dan desain (Ud) tertinggi masing-masing sebesar 44,93 W/m2K dan 55.45 W/m2K dengan luas permukaan APK sebesar 4.25 m2, diameter luar pipa 0,0127 m, susunan pipa 45o, jarak antara pipa PR adalah 2.4 dan panjang pipa 2,6 m. Alat penukar kalor shell and tube ini memiliki kapasitas maksimum memindahkan panas sebesar 13.77 kW dengan laju aliran massa chilli sauce sebesar 0,167 kg/detik dengan batasan overdesign sebesar 25%. Hasil validasi HTRI diperoleh penyimpangan kontruksi dengan luas area perpindahan panas sebesar 11,05% dan koefisien perpindahan panas sebesar 14,8-22,8% lebih rendah dari data hitungan manual.
Planning for the Development of a 40 kWp Off-Grid Centralized Solar Power Plant (SPP) on Insumbabi Island Yusuf, Erwin; Jakariya; Subeno, Agus
Jurnal Konversi Energi dan Manufaktur Vol. 10 No. 2 (2025)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.10.2.4

Abstract

This study aims to design and evaluate a 40 kWp off‑grid centralized Solar Power Plant (SPP) to meet the electricity needs of two underserved villages on Insumbabi Island, Supiori Regency, Papua, Indonesia. A systematic planning and technical design process was conducted, comprising field surveys, satellite‑based solar potential analysis, load assessment, and system configuration. Performance simulations using photovoltaic (PV) Syst software indicate a daily energy output of 158.386 kWh, delivered by 216 PV modules and battery storage with two‑day autonomy. The system achieves an annual average production of 3.3–3.6 kWh/kWp/day. The maximum energy that can be produced by the solar panels reaches 67,661 kWh per year, with the highest monthly output of 6,194 kWh in August and the lowest of 4,992 kWh in February, a performance ratio (PR) of 0.602, and a solar fraction (SF) of 1.0. This confirms its capacity to fully meet local energy demands year‑round. The proposed design demonstrates high feasibility and offers a replicable model for off‑grid rural electrification projects in Indonesia.
Design of Coconut Milk Pressing Machine with Two Screw Shafts to Improve Extraction Efficiency and Quality Setiawan, Angga; Wijaya, Rahmat; Subeno, Agus; Budi Affandi, Arif; Okviyanto, Toni; Mubina Dewadi, Fathan
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.8

Abstract

Coconut milk pressing machines play an important role in coconut processing; however, conventional single-screw designs still face limitations related to pressure distribution and extraction stability. This study aims to design and analyze a coconut milk pressing machine, employing a counter-rotating two screw shafts configuration as an alternative to commonly used single-screw systems. The research methodology includes a reverse-engineering approach, analytical calculations to determine pressing capacity, power, torque, and pressure, and finite element analysis (FEA) simulations to evaluate the structural strength of main components. The analytical results indicate that the proposed design achieves a theoretical pressing capacity of 53 kg/h, with a shaft power requirement of 1.11 kW and a pressing pressure of 1.67 × 10⁵ N/m². FEA results show that the Von Mises stress and deformation remain below the allowable limits of the selected material, indicating a conservative, structurally safe design. All results presented in this study are theoretical and numerical in nature and have not yet been validated through experimental testing. The novelty of this work lies in the application of a counter-rotating two screw shafts configuration, which theoretically provides a more uniform pressure distribution than conventional single-screw systems without a significant increase in power consumption. Future work will focus on prototype fabrication and experimental testing to validate extraction performance, energy efficiency, and hygienic aspects.
Effectiveness of Epoxy Coating on Metal Surfaces of NEW773CAT Heavy Equipment Units Subeno, Agus; Setiawan, Angga; Okviyanto, Toni; Sumarna, Herlin; Setiawan, Dibyo; Widyawati, Fauzi
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.6

Abstract

This study investigates the effectiveness of the epoxy coating system on NEW773CAT heavy equipment unit operating in a mining environment. The research primarily focuses on the influence of surface preparation methods, dry film thickness (DFT), and coating type on corrosion resistance and adhesion strength. Field case studies, thickness measurements, and visual inspections were employed to assess the performance of coating system. The results reveal that average coating thickness of 396 μm significantly exceeds the minimum ISO 12944 category C5-I standard, which specifies a DFT of 320-400 μm for high corrosivity environments. The surface preparation process using high-pressure cleaning and power tool cleaning (ST 3.0) was found to produce an ideal substrate for epoxy coating application. The use of high-built epoxy mastic as the primer and Aliphatic Polyurethane as the top coat demonstrated excellent corrosion protection and optimal interlayer adhesion. The spray application technique resulted in a uniform coating with no visible defects. This study emphasizes the importance of combining effective surface preparation and precise coating specifications to ensure long-term protection of metal surfaces in harsh environments. The findings suggest that epoxy coating systems, when correctly applied and prepared, can provide robust protection against corrosion, extending the service life of heavy equipment exposed to aggressive conditions like those found in mining operations.
Co-Authors Angga Setiawan Budi Affandi, Arif Fauzi Widyawati Jakariya Mubina Dewadi, Fathan Okviyanto, Toni setiawan, Dibyo Sumarna, Herlin Wijaya, Rahmat Yogi Sirodz Gaos