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All Journal OPSI Tekinfo | Scientific Journal of Industrial and Information Engineering Journal Serambi Engineering (JSE)
Rudy Tjahyono
Universitas Dian Nuswantoro
Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Model dan Simulasi Alur Rantai Pasok Sampah Organik Menjadi Pakan Ternak Lele Ratih Setyaningrum; Dewi Agustini; Rudy Tjahyono; Dian Retno Sawitri; Tambah Ayu Arida
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 8 No 2 (2020)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v8i2.800

Abstract

The most widely generated waste is organic waste, which is 60% compared to other types of waste. So far, NRC has been able to process organic waste to be used as animal feed products for catfish or pellets. The production capacity that can be carried out by the NRC company is 150 kg to 200 kg per day, but the organic waste obtained at this time has not been able to reach the required production capacity. Based on this, it is necessary to propose a better organic waste supply chain model for NRC companies. The purpose of this study will be to map the supply chain of organic waste into catfish feed. The supply chain model made is the current supply chain and the proposed supply chain. The final output of the study will compare current conditions and proposed supply chain models. The simulation results with arena software show the acquisition of organic waste as much as 352 kg. That means organic waste obtained by the NRC company from the 4 waste banks is 352 kg. Recommended supply chain recommendations have 4 waste bank suppliers, with each bank having a minimum of 3 waste producers.
Work Posture Evaluation on Ergonomic “Colet” Workbench Design in Batik Coloring Process using Rapid Entire Body Assessment and Nordic Body Map Amalia Amalia; Rudy Tjahyono; Jazuli Jazuli; Rodia Syamwil
OPSI Vol 14, No 2 (2021): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v14i2.5302

Abstract

The effort to preserve batik is to maintain the continuity of batik production. Coloring process is one of the important processes in batik production. In addition to the dyeing technique, there is a “colet” technique in batik coloring process. Colet technique is considered an efficient technique in saving coloring dyes. The colet process is still carried out without standards and does not consider ergonomic aspects. This study aims to analyze the risk level of batik workers posture in colet technique coloring process. This research is an observational study with data analysis using the Rapid Entire Body Assessment (REBA) and Nordic Body Map (NBM). Based on the measurement, the risk level with the initial work posture has a score 9 and 7, which means the posture needs immediate corrective action to prevent occupational diseases. The implementation of Ergonomic “Colet” workbench is a way to improve work posture so the risk could be decreased, with score 4 both in standing and sitting working position.
Analisis Spesifikasi Pertasol Ca dengan Metode Fault Tree Analysis dan Failure Mode and Effect Analysis Pada PPSDM Migas Ayu Ananta; Rudy Tjahyono
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v11i2.1723

Abstract

Pusat Pengembangan Sumber Daya Manusia Minyak dan Gas Bumi (PPSDM Migas) adalah lembaga pemerintah yang memiliki peran dalam pengelolaan serta peningkatan kualitas sumber daya manusia di bidang minyak dan gas bumi. Dalam pengolahannya, PPSDM Migas menghasilkan produk Pertasol CA, Pertasol CB, Pertasol CC, residu, dan solar. Penelitian ini berfokus pada analisis spesifikasi produksi Pertasol CA berdasarkan parameter density pada 15°C, distilasi dan warna menggunakan metode Fault Tree Analysis (FMA) dan Failure Mode And Effect Analysis (FMEA). Data diperoleh melalui data primer dengan melakukan wawancara pada pihak terkait dan data sekunder sebagai pendukung berupa hasil pengujian Pertasol CA selama bulan Februari 2025. Hasil penilaian menunjukkan bahwa terdapat ketidaksesuaian pada parameter density pada 15°C sebanyak 11 kali kesalahan apabila dibandingkan dengan spesifikasi yang telah ditetapkan pemerintah. Berdasarkan analisis Fault Tree Analysis (FMA) didapatkan faktor yang mempengaruhi adalah faktor material dan manusia, sedangkan dari hasil penilaian dengan metode Failure Mode And Effect Analysis (FMEA) didapatkan nilai tertinggi yaitu 108. Selanjutnya rekomendasi perbaikan diberikan dengan memperbaiki pencahayaan dan suhu pada ruang laboratorium serta penyetaraan alat uji antara PPSDM dengan supplier. 
Co-Authors Amalia Amalia Ayu Ananta Dewi Agustini Dian Retno Sawitri Jazuli Jazuli Ratih Setyaningrum Rodia Syamwil Sari Ayu Wulandari Tambah Ayu Arida