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All Journal Jurnal Ilmiah Rekayasa Sipil Jurnal Sosial dan Teknologi
Wibisono, M. Arif
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Humanities Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Law, Crime, Criminology & Criminal Justice

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Studi Komparasi Standar Pengujian Statis Pada Kereta dengan Penggerak Sendiri Berkecepatan Normal Ardiatomo, Prabowo; Malkhamah, Siti; Wibisono, M. Arif
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 1 (2024): April 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i1.1125

Abstract

Railways are a unified system consisting of infrastructure, rolling stock and human resources as well as norms, criteria, requirements and procedures for the operation of railways. Every rolling stock operating in Indonesia must undergo first testing and periodic testing to ensure its operational feasibility. From data Directorate General of Railways in 2015-2021, it can be seen that the realization of the eligibility certificate for rolling stock has not been optimal, so that regulatory support is needed to maximize the performance of rolling stock testers. This study aims to compare the standards for static testing of temperature and air circulation on self-propelled coach applied in Indonesia and Europe. Based on a comparison of the static testing standards in Indonesia against the static testing standards in Europe, it is hoped that recommendations for improvement from the current static testing standards will be obtained. The method used in this research is qualitative method. Analysis of the data used using descriptive and comparative analysis. The results of the study comparison of the standard static testing of temperature and air circulation of self-propelled trains that apply in Indonesia and Europe, overall there are differences in the items tested, the value of acceptance and testing procedures. There are equal only in the item tested on air circulation static test. Temperature testing requires the addition of test items and improvements in the implementation of test procedures. Air circulation static testing needs improvement in the implementation of testing procedures.
Analisis Kelayakan Ekonomi Perancangan Pabrik Kelapa Sawit Mini Dengan Kapasitas 1000 Ton Per Tahun Menggunakan Metode Life Cycle Costing: Studi Kasus Desa Bukit Layang, Bangkabelitung Febrian, Gilang; Wibisono, M. Arif
Jurnal Sosial Teknologi Vol. 5 No. 9 (2025): Jurnal Sosial dan Teknologi
Publisher : CV. Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsostech.v5i9.32396

Abstract

Kelapa sawit merupakan komoditas yang berkontribusi signifikan terhadap perekonomian Indonesia. Pabrik kelapa sawit mini memiliki tantangan berupa perancangan pabrik, proses produksi dan anggaran yang kurang optimal serta pengelolaan operasional. Sebanyak empat perusahaan swasta yang memiliki berbagai konflik yang berbatasan langsung dengan Desa Bukit Layang.  Desa Bukit Layang memiliki lahan perkebunan kelapa sawit milik individual seluas 500-700 ha dengan produksi tandan buah segar mencapai 2000-3500 ton per tahun. Hasil tersebut menunjukkan bahwa besarnya potensi desa untuk memiliki pabrik pengolahan minyak kelapa sawit sendiri. Penelitian ini bertujuan untuk merancang pabrik, proses produksi, anggaran dan menganalisis biaya produksi pada mini pabrik kelapa sawit berkapasitas 1000 ton per tahun menggunakan metode Life Cycle Costing (LCC). Penelitian dilakukan dengan pendekatan deskriptif kuantitatif melalui studi kasus pabrik kelapa sawit mini. Berdasarkan hasil perhitungan, total biaya siklus hidup pabrik selama 1 tahun mencapai Rp 1.287.000.000, terdiri dari CapEx Rp 711.000.000, OpEx Rp 456.500.000, Replacement Cost Rp 39.500.000, dan EoL Cost Rp 80.000.000. Sementara itu, untuk periode 10 tahun, total biaya proyek mencapai Rp 5.751.500.000. Analisis finansial menunjukkan proyek ini layak dengan nilai NPV sebesar Rp 18.477.000.095, IRR sebesar 249,9%, Payback Period selama 0,4 tahun, BCR sebesar 7,48, dan Profitability Index sebesar 15,3.
Co-Authors Ardiatomo, Prabowo Febrian, Gilang Siti Malkhamah