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Mechanical Design of Slug Catcher Ayende; Arsyad, Mohammad Zafrullah; Widiyanto, Totok
Indonesian Journal of Energy and Mineral Vol. 1 No. 1 (2021): IJoEM, Vol 1, No 1, 2021
Publisher : Politeknik Energi dan Mineral Akamigas

In the upstream oil and gas industry Slug Catcher is a separator to separate heavy liquid hydrocarbons and the gaseous lighter fraction. Slug Catcher is a cylindrical pressure vessel which has a horizontal orientation designed with an internal pressure of 84.37 kg/cm2 , 73,89 Â°C temperature, 3 mm corrosion allowance, 3,500 mm length, and 1,750 mm diameter. This paper aims to design a Slug Catcher from a mechanical side that is safe and able to withstand the stress caused by internal pressure. General design which includes calculation of thickness of shell, heads, and nozzles, maximum allowable working pressure (MAWP), and minimum design metal temperature (MDMT) using ASME BPVC Section VIII Division 1. Based on the results obtained the nominal shell thickness is 60 mm, head minimum thickness 58 mm, material specification for shell and head is SA 516 Gr 70. In general, the selected material use low carbon steel; flange rating class 600; vesselâ€™s Maximum Allowable Working Pressure is 87.60 kg/cm2 ; hydrostatic test pressure is 113 kg/cm2 .

Sistem Pompa Listrik Tenaga Surya Untuk Irigasi Lahan Pertanian Masyarakat Cepu Yuliatin, Umi; Handoko, Susilo; Nurin Hamdani, Chaldia; Widiyanto, Totok
Jurnal Pengabdian Masyarakat Sains Indonesia Vol. 5 No. 2 (2023)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmsi.v5i2.252

Indonesia merupakan negara agraris yang mempunyai wilayah pertanian yang luas. Daerah kecamatan Cepu, Blora adalah salah satu wilayah dengan lahan kelola perhutani yang cukup luas dan belum dimanfaatkan secara maksimal. Dalam pengelolaan lahan pertanian ini air merupakan kebutuhan yang utama dalam mengelola lahan pertanian. Sedangkan kontur tanah di wilayah cepu tidak menjamin tersedianya air di setiap lahan . sehingga masyarakat dihadaoka pada masalah ketersediaan air yang tidak konsisten. Solusi kebutuhan ini dibutuhkan sistem irigasi yang baik saat terjadi musim hujan maupun kemarau. Secara konvensional pengunaan diesel pompa air dengan bahan bakar minyak untuk sistem irigasi pertanian diperlukan biaya mahal dan tidak efektif. Pemanfaatan tenaga surya untuk pompa air merupakan salah satu alternatif solusi yang handal, hemat, efektif dan efisien untuk menjaga sistem irigasi tetap berjalan dengan baik saat musim kemarau. Pada pengabdian ini telah berhasil diimplementasikan penggunaan pompa dengan beban 125 watt yang mampu beroprasi 8 jam perhari dengan listrik tenaga surya 500 WP. Panel surya ini mampu menghasilkan daya listrik 2000 watt dengan asumsi waktu efektif 4 jam terpapar matahari penuh. Dalam keadaan tidak ada sinar matahari, dengan daya yang dimiliki pompa mampu bisa dioperasikan 14,4 jam atau sekitar 2 hari.

Sistem Pompa Listrik Tenaga Surya Untuk Irigasi Lahan Pertanian Masyarakat Cepu Yuliatin, Umi; Handoko, Susilo; Nurin Hamdani, Chaldia; Widiyanto, Totok
Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Vol. 5 No. 2 (2023)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmsi.v5i2.252

Indonesia merupakan negara agraris yang mempunyai wilayah pertanian yang luas. Daerah kecamatan Cepu, Blora adalah salah satu wilayah dengan lahan kelola perhutani yang cukup luas dan belum dimanfaatkan secara maksimal. Dalam pengelolaan lahan pertanian ini air merupakan kebutuhan yang utama dalam mengelola lahan pertanian. Sedangkan kontur tanah di wilayah cepu tidak menjamin tersedianya air di setiap lahan . sehingga masyarakat dihadaoka pada masalah ketersediaan air yang tidak konsisten. Solusi kebutuhan ini dibutuhkan sistem irigasi yang baik saat terjadi musim hujan maupun kemarau. Secara konvensional pengunaan diesel pompa air dengan bahan bakar minyak untuk sistem irigasi pertanian diperlukan biaya mahal dan tidak efektif. Pemanfaatan tenaga surya untuk pompa air merupakan salah satu alternatif solusi yang handal, hemat, efektif dan efisien untuk menjaga sistem irigasi tetap berjalan dengan baik saat musim kemarau. Pada pengabdian ini telah berhasil diimplementasikan penggunaan pompa dengan beban 125 watt yang mampu beroprasi 8 jam perhari dengan listrik tenaga surya 500 WP. Panel surya ini mampu menghasilkan daya listrik 2000 watt dengan asumsi waktu efektif 4 jam terpapar matahari penuh. Dalam keadaan tidak ada sinar matahari, dengan daya yang dimiliki pompa mampu bisa dioperasikan 14,4 jam atau sekitar 2 hari.

Training and Certification for Oil and Gas Safety Operators in Bojonegoro and Surrounding Communities Susilo Handoko; Nugroho, Budi Sulistiyo Nugroho; Ayende; Widiyanto, Totok; Hamid, Farid Alfalaki; Indriani, Erdila; Astrie, Astrie Kusuma Dewi; Wardhana, Asepta Surya
Civitas : Jurnal Pengabdian Masyarakat Vol. 1 No. 2 (2024): Desember 2024
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/civitas.v1i2.369

Occupational Safety and Health (OSH) is indispensable to the oil and gas sector, which encompasses production, processing, and transportation, due to its substantial risk of workplace accidents and fires. Oil and gas OSH is a regulation that ensures the reliable operation and safety of oil and gas institutions/companies by standardizing equipment, personnel, general protocols for oil and gas installations, and operational procedures. OSH certification is a highly regarded indicator of documented expertise and is highly regarded for its credibility. The process of implementing this OSH training and certification involves the identification of training requirements, the preparation of a curriculum, and the coordination with relevant parties, specifically the Bojonegoro Regency Government. Preparation of socialization from participant registration through the selection of participants based on their basic requirements or qualifications. Theory sessions and practical sessions comprise training implementation. The theoretical session involves the delivery of material in the classroom, while the practical session involves the simulation of tool use in the fire and safety laboratory. In collaboration with LSP PPSDM Migas, the STTK certification exam for operator level was administered. The National Professional Certification Agency (BNSP) issues certificates. A total of 25 participants took the STTK exam on 8-9 August 2024, with 23 of them being declared competent and passing. The certification exam for the operator level was administered in conjunction with LSP PPSDM Migas. Furthermore, an additional examination was administered on August 27-28, 2024. Thirty-one individuals were declared competent and successfully completed the certification, out of a total of fifty.

Optimization Of Gas Turbine Performance 2.1 Using the Overhaul Combustion Inspection Method Handoko, Susilo; Hendra, Hendra; Suharyadi, Hafid; Widiyanto, Totok
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4221

Gas turbines are one type of internal combustion drive, the initial mover utilizes gas combustion as a fluid to rotate the turbine with internal combustion. Gas turbines at private companies producing electricity use the initial movers, namely gas turbines and steam turbines. Therefore, it is also called the "Steam Gas Power Plant/PLTGU.”Private company especially in Block 2, uses two gas turbine units with Mitsubishi GT 2.1 specifications which are used as the initial drive of the generator. Types of overhauls in gas turbines are divided into three, including turbine inspection, combustor inspection, and major inspection. In maintaining the reliability of the GT 2.1 Gas Turbine, an overhaul combustion inspection was carried out in the combustion chamber because there was an increase in heat rate of 17,9% which caused a decrease in thermal efficiency and net turbine power of the GT 2.1 Gas Turbine by 17% and 2,1%. So that steps are taken to optimize the GT 2.1 Gas Turbine with the combustion inspection method by repairing and cleaning the combustion bucket nozzle. Increased thermal efficiency by 27,8% or 27,13% to 36,01% from data before overhaul. This was also followed by an increase in compressor power and turbine power so that the net turbine power increased by 38% or 141339,35 hp to 195246,54 hp.

Emergency Response Workshop on Fire Prevention and Control Using Fire Blankets and Fire Extinguishers Nugroho, Budi Sulistiyo; Annasit; Nurrahman, Arif; Dharmawan, Aditya; Setiyono, Agus; Hamid, Farid Alfalaki; Handoko, Susilo; Widiyanto, Totok; Dewi, Astrie Kusuma; Indriani, Erdila
Civitas : Jurnal Pengabdian Masyarakat Vol. 2 No. 4 (2025): December 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/civitas.v2i4.1175

Fire incidents continue to increase in various regions in Indonesia due to low public awareness of prevention and early response measures. This community service activity aims to improve students' knowledge, skills, and preparedness in using fire blankets and portable fire extinguishers through experience-based training. The implementation methods include interactive lectures, live demonstrations, and controlled firefighting simulations. Pre- and post-training evaluations were used to measure changes in knowledge, skills, and safety attitudes. A total of 180 participants (aged 15–18 years) attended the training and completed the entire evaluation series. The results showed an average increase in knowledge scores from 52.3 to 86.8 points (+66%). Practical competence increased from 14% to 81% of participants who were assessed as being able to use the tools correctly. Attitudes and confidence in emergency response also showed significant improvement, from a score of 2.4 to 4.1 on the Likert scale. Qualitative feedback confirmed that participants felt better prepared to deal with small fires and had a better understanding of the importance of a safety culture in the school environment. These findings indicate that practice-based training is effective in strengthening fire preparedness among secondary school-aged groups. This workshop model offers an educational approach that can be replicated by other educational institutions as a risk mitigation strategy and to strengthen community-based safety culture.

Studi Eksperimental Pengaruh Misalignment Poros Kopling Simulator PLTMH Dengan Variasi Daya Pada Sistem Pulley Dan Belt Widiyanto, Totok; Sujono, Sujono; Moch. Bagus Bahtiar; Hilmi Rizky Putra
Jurnal Nasional Pengelolaan Energi MigasZoom Vol. 7 No. 2 (2025): Jurnal Nasional Pengelolaan Energi MigasZoom
Publisher : Pusat Pengembangan Sumber Daya Manusia Minyak dan Gas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37525/mz/2025-2/1584

Penelitian ini membahas pengaruh misalignment poros kopling terhadap kinerja sistem transmisi pulley dan belt pada simulator Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) dengan variasi jumlah belt. Eksperimen dilakukan menggunakan motor listrik tiga fasa dengan daya 2,2 kW, sistem kopling, transmisi pulley-belt, serta unit turbin air axial flow. Data dikumpulkan melalui pengukuran kelurusan poros dengan dial indikator, analisis getaran menggunakan vibration analyzer, pengukuran temperatur komponen dengan infrared thermography, serta perhitungan torsi berdasarkan daya dan kecepatan putar pada rasio pulley 1:2. Hasil penelitian menunjukkan bahwa kondisi misalignment menghasilkan deviasi kelurusan hingga 0,82 mm dengan soft foot mencapai 0,65 mm, sedangkan setelah alignment deviasi turun menjadi ≤0,143 mm. Pada kondisi misalignment amplitudo getaran meningkat signifikan terutama pada arah radial dengan nilai maksimum 43,54 mm/s, serta temperatur bearing mencapai 62,8 °C, sedangkan setelah alignment nilai getaran dan temperatur menurun walau belum memenuhi standar ISO 10816/20816-3. Perhitungan torsi efektif yang ditransmisikan pada kondisi alignment berkisar antara 26,89–27,47 N.m (efisiensi belt 96–98%), sedangkan pada kondisi misalignment turun menjadi 24,65–26,04 N.m (efisiensi belt 88–93%). Hasil ini menegaskan bahwa misalignment tidak hanya meningkatkan getaran dan temperatur, tetapi juga menurunkan torsi yang ditransmisikan, sehingga berdampak pada efisiensi energi dan keandalan sistem.

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