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All Journal JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Abdimas Galuh : Jurnal Pengabdian Kepada Masyarakat JESCEE- Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Widiyati, Khusnun
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Electrical & Electronics Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Nursing Other

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Pelatihan Pembuatan Dye-Sensitized Solar Cell (DSSC) Sederhana untuk Siswa SMA Islam Nurul Fikri Yulia, Fayza; Pradanawati, Sylvia Ayu; Hastuty, Sri; Kadarno, Purwo; Rahmawan, Yudi; Fachmi, Yose; Jaya, Arie Sukma; Riyandwita, Byan Wahyu; Widiyati, Khusnun; Barrinaya, Muhammad Akbar; Ramadhani, Adhitya Ryan; Muharram, Farid
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 8, No 1 (2024): Mei
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2024.v8i1.4869

Abstract

Energi baru terbarukan berkembang pesat seiring dengan peningkatan pemberdayaan energi baru terbarukan. Sebagai salah satu upaya pemenuhan 100% elektrifikasi di Indonesia, berbagai jenis sumber daya baru terbarukan dikelola untuk menghasilkan listrik. Di Indonesia, potensi energi matahari sangat besar. Solar panel, ke depannya menjadi salah satu alat konversi energi yang banyak dikembangkan di Indonesia. Solar panel generasi ketiga yang sedang banyak dikembangkan adalah Dye-Sensitized Solar Cell (DSSC) di mana menggunakan pewarna alami sebagai dye. SMA Nurul Fikri, Depok dipilih karena pengembangan metode konstruktif pengalaman belajar yang diadopsi pada kurikulum mereka. Dari hasil pelatihan, 100% peserta mampu membuat DSSC sederhana. Selain itu, telah terjadi peningkatan pengetahuan yang ditunjukkan dengan peningkatan persentase jumlah siswa yang mengetahui proses DSSC berdasarkan hasil pre-test dan post-test.
Analysis of The Effectiveness of The Filling Machine Kalix Plastic 501 using The of Overall Equipment Effectiveness (OEE) Method at PT. XYZ Widiyati, Khusnun; Pangestu, Panji
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 3 No 1 (2024): Journal of Emerging Supply Chain, Clean Energy and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v3i1.78

Abstract

This study discusses the effectiveness of the Kalix Plastik 501 Filling machine at PT. XYZ with the Total Productive Maintenance (TPM) approach, namely by examining the Six Big Losses factors on the machine to increase the Overall Equipment Effectiveness (OEE) value. The TPM program aims to produce effectiveness in all production by participating in productive, proactive and planned activities. TPM effectiveness can be done by measuring the OEE value, where the performance of a machine can be said to be optimal if it has an OEE international standard value of > 85%. This paper provides valuable information about the performance of production machines and offers possible solutions to increase their efficiency. Based on the results of data calculations, it is known that the average value of the effectiveness of the Kalix Plastic 501 filling machine at PT. XYZ is 57,05%, meaning that this value is below the standard OEE value. Furthermore, it is known that the losses that cause low OEE values in this study are the result of deceleration loss (23%), setup and adjustment (14,78%), idle and minor stoppages (7,41%), breakdown failure (3,91%), scrap loss (0.24%), and yield loss (0%). The six losses occurred due to human factors such as lack of manpower and not following work instructions, machine factors such as sensor errors, broken filling valves, and procedural factors such as lack of PM schedules and product operations not continuing.
Risk Assessment Analysis of Pressure Vessel Refrigerant Accumulator at PT XYZ Widiyati, Khusnun; Harianja, Valeska; Sutanto, Hadi; Bachtiar, Marselinus
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 3 No 2 (2024): Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v3i2.93

Abstract

The Refrigerant Accumulator equipment is a pressure vessel located within the production system unit, namely the Dew Point Control (DPC) Unit. The Refrigerant Accumulator is a crucial component within the DPC Unit as it serves as a reservoir for the Propane refrigerant liquid. In case of a failure of this equipment, it would halt the entire process in the DPC Unit and impact the control of gas dew point that is transmitted to consumers through pipelines. Hence, a more effective method is required to prevent failures in the Refrigerant Accumulator. One of the methods that can assist in more effective inspection is Risk-Based Inspection (RBI). Risk-Based Inspection is a risk-based inspection methodology, where the main output obtained is an inspection plan determined based on the risk of the equipment. It prioritizes inspections for equipment with higher risk of damage, thus optimizing equipment maintenance and aiding companies in establishing effective maintenance strategies. Therefore, this study aims to analyze the risk level of the Refrigerant Accumulator equipment using the Risk-Based Inspection method according to API 581, determine the risk level of the Refrigerant Accumulator equipment, and provide appropriate inspection planning recommendations for the Refrigerant Accumulator equipment. Based on the results of this study, the Risk-Based Inspection analysis yielded values for Probability of Failure (PoF), Area-based Consequence (CA), and Financial Consequence (FC) through quantitative calculations based on the steps outlined in API 581. The PoF value is 5.011×10-6, the CA value is 3,316.36 ft2, and the FC value is $22,746,756.91. From the analysis results, the risk level of the Refrigerant Accumulator equipment is categorized as Medium-Risk, with a Probability of Failure of 5.011×10-6 in category 1 and a Consequence of Failure of $22,746,756.91 in category E. Consequently, the final category is 1E, with a remaining life of 33.7 years. Based on the obtained risk level, the recommended inspection planning is to conduct the next inspection on December 2031, using Visual Inspection method with 100% surface coverage and Phased Array Ultrasonic Testing (PAUT) with 90% surface coverage.
Risk Assessment on Pressure Relief Device Using Risk Based Inspection (RBI) Method Based on API RP 581 in PT Z Fajar Natawijaya, Mohamad; Widiyati, Khusnun
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 1 No 2 (2022): Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v1i2.16

Abstract

This research is about conducting a risk assessment of the pressure relief device unit by conducting a risk-based inspection analysis method. With the aim of mapping the risk categories in the PRD unit and providing recommendations for actions that must be taken to mitigate these risks with a quantitative approach. Pressure relief device (PRD) is a device that automatically discharges a certain pressure which is controlled by upstream static pressure coming from the valve and opens naturally with an increase in pressure above the opening pressure. The risk-based inspection method is carried out to calculate the risk value on an equipment by conducting analysis and calculations to determine the probability and consequence values on the PRD unit, the data used to calculate the risk value in the form of PRD data sheets include: general data, process condition data, data materials, data connection, and database and selection data, as well as inspection history records at the PRD unit (17 – PSV – 298) which are used to determine risk values, inspection plans, and recommendations for actions to be taken in mitigating risks. According to the calculation of the risk value on the PRD unit equipment (17 – PSV – 298) which was analyzed using the risk-based inspection method, the risk value for the PRD unit was 0.1135 m2/year, so it can be determined that the risk category is the medium category according to plotting against the risk matrix. The PRD unit (17 – PSV – 298) will approach the risk target as determined by the company in the 24th year since the first risk assessment was carried out using the RBI method and estimated on January 11, 2042. Based on the inspection history, there has been a leak in the PRD unit (17 – PSV – 298) during the pop test. Thus, the recommended type of inspection is the type of shop inspection/overhauls and is carried out periodically at least every 4 years. This is in accordance with PERMEN ESDM No. 32 of 2021 Article 21 Paragraph 4a.
Peningkatan Literasi Teknologi Robotika melalui Pengenalan dan Perakitan Robot Pengikut Garis di SMAK Tunas Bangsa Gading Serpong Jaya, Arie Sukma; Hastuty, Sri; Ramadhani, Adhitya Ryan; Barrinaya, Muhammad Akbar; Rahmawan, Yudi; Widiyati, Khusnun; Kadarno, Purwo; Riyandwita, Byan Wahyu; Pradanawati, Sylvia Ayu; Buys, Yose Fachmi; Yulia, Fayza; Reksowardojo, Iman Kartolaksono; Aziz, Bonifacius S.I.; Tambunan, Sahrudin
Abdimas Galuh Vol 7, No 2 (2025): September 2025
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ag.v7i2.20693

Abstract

Perkembangan teknologi robotika memberikan peluang besar untuk memperkaya proses pembelajaran di tingkat sekolah menengah, khususnya dalam penguatan keterampilan abad ke-21. Namun, minimnya akses terhadap pengalaman praktik membuat siswa kesulitan memahami konsep robotika secara aplikatif. Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan untuk mengenalkan konsep dasar robotika industri kepada siswa SMAK Tunas Bangsa Gading Serpong melalui praktik langsung dalam merakit dan menguji robot pengikut garis (line follower). Metode pelaksanaan kegiatan dibagi menjadi tiga tahap, yaitu persiapan, pelaksanaan, dan evaluasi, yang secara implisit mengikuti tahapan dalam model pengembangan instruksional ADDIE (Analysis, Design, Development, Implementation, Evaluation). Peserta dibimbing dalam perakitan tiga jenis robot: Analog A, Analog B, dan Digital. Evaluasi dilakukan melalui survei pre-test dan post-test, pengujian performa robot, serta kuesioner kepuasan peserta. Hasil menunjukkan adanya peningkatan rata-rata pemahaman dari 68,15% menjadi 84%. Peningkatan paling signifikan terlihat pada aspek teknis seperti pengenalan sensor dan penggunaan perangkat lunak Arduino IDE. Dari segi performa, robot Analog A memiliki waktu tempuh tercepat (18,70 detik) dan konsumsi daya terendah (0,64%), sedangkan robot Digital lebih kompleks namun belum optimal dalam lintasan uji terbatas. Survei kepuasan menunjukkan 98% peserta merasa puas terhadap kegiatan. Kegiatan ini terbukti efektif dalam meningkatkan literasi teknologi dan memberikan pengalaman belajar berbasis praktik yang bermakna, serta relevan dalam mendukung implementasi SDGs poin 4 tentang pendidikan berkualitas.
Co-Authors Adhitya Ryan Ramadhani Aziz, Bonifacius S.I. Bachtiar, Marselinus Barrinaya, Muhammad Akbar Buys, Yose Fachmi Fajar Natawijaya, Mohamad Hadi Sutanto Harianja, Valeska Iman Kartolaksono Reksowardojo Jaya, Arie Sukma Kadarno, Purwo Muharram, Farid Pangestu, Panji Rahmawan, Yudi Ramadhani, Adhitya Ryan Riyandwita, Byan Wahyu Sri Hastuty, Sri Sylvia Ayu Pradanawati Tambunan, Sahrudin Yose Fachmi Buys Yulia, Fayza