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All Journal ComTech: Computer, Mathematics and Engineering Applications International Journal of Community Service Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Pauhesti, Pauhesti
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Willow Project Socialization As An Introduction To Petroleum Engineering At Yos Sudarso Metro High School Yulia, Prayang Sunny; Wastu, Apriandi Rizkina Rangga; Ristawati, Arinda; Pauhesti, Pauhesti; Husla, Ridha; Timpal, Gracia Betaria Jacqueline; Wijayanti, Puri; Aryanto, Reza; Yanti, Widia
International Journal Of Community Service Vol. 4 No. 1 (2024): February 2024 (Indonesia - Malaysia)
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v4i1.247

Abstract

The Willow Project is located on Alaska's north slope, within the National Petroleum Reserve, which is held by the United States federal government. Based on the topics being discussed, a strong desire was developed, particularly among Yos Sudarso Metro High School students, to learn about the causes for oil drilling, as well as the impacts and benefits of drilling from diverse perspectives. Concerning the community service that according to Willow Project theme, the lecturers as the facilitators of this community service assisted students who wanted to find a solution to the Willow Project issue, where they hoped that there would be several points regarding the impact and benefits of academia in the energy sector, particularly petroleum engineering. As a result of socialization regarding the Willow Project drilling, impacts and benefits have been imparted in the Community Service activities, which are separated into environmental impacts, climate impacts, and social impacts. Following an overview of the impact of the Willow Project drilling, the benefits of the drilling are explained, including job creation and economic benefits, energy independence, and tax revenue. The crux of the impacts and benefits given is that it is still envisaged that fossil energy would be used to increase jobs in the nearby community and globally. Aside from that, it is desired that the development of renewable energy, the reduction of drilling in conservation areas, and the preservation of environmental integrity would continue.
Soap Bar Making from Waste Cooking Oil for Residents of 07 Area, Duri Pulo Sub-district, Jakarta Pauhesti, Pauhesti; Sunny Yulia, Prayang; Widiyatni, Harin; Sutadiwiria, Yarra; Jane, Gabey; Yanti, Widia
International Journal Of Community Service Vol. 4 No. 2 (2024): May 2024 (Indonesia - Ethiopia )
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v4i2.265

Abstract

Cooking oil that is no longer utilized can be used as a basic ingredient in the production of soap bar, and other products that can be used in daily life, such as washing clothes or kitchen utensils. The remainder of cooking oil, also known as waste cooking oil, is typically poured down the drain, where it can plug the drain since the oil freezes at low temperatures, causing environmental pollution. Based on this issue, the FTKE Universitas Trisakti community service team taught inhabitants of 07 Area, Duri Pulo Sub-district, Jakarta how to make bar soap from waste cooking oil. However, waste cooking oil cannot be used directly as an ingredient for creating soap because of the color and aroma, therefore it must be cleaned first by adding activated carbon, namely charcoal as an adsorbent, into the waste cooking oil to absorb the color and aroma. Later on, mix the oil and lye (a combination of NaOH and water), stir until the mixture resembles liquid soap, and then add around 1 ml of fragrance. Put the mixture in the drain. Leave the soap in the mold for 24 hours until it solidifies and hardens, then remove from the mold. It is intended that with this training, locals would be able to better their economic standing by saving more money while simultaneously helping to save the environment.
Prevention and Mitigation of Oil Waste In Coastal Areas For Fishing Communities Pauhesti, Pauhesti; Kurniawan Saputra, Ade; Widiyatni, Harin; Maulindani, Sri Feni; Kurniawati, Riskaviana; Kalasnikova Suparmanto , Albert; Wastiyah, Lailatul; Raihan Azica , Muhammad; Dolfina Kilmas, Theresia
International Journal Of Community Service Vol. 4 No. 3 (2024): August 2024 (Indonesia - Malaysia)
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v4i3.279

Abstract

Oil spills in coastal areas are a serious environmental issue that can cause damage to marine ecosystems, water pollution, and economic losses for fishing communities. This community service project aims to enhance fishermen's understanding of the negative impacts of oil spills and to provide practical skills and knowledge regarding oil waste management. The approach used includes training on the use of absorbent tools, binding chemicals, and localization technologies to handle oil spills. Additionally, the project introduces environmentally friendly technologies to reduce the risk of oil leaks or spills from fishing vessels. The project results indicate a significant increase in the knowledge and skills of the participating fishermen regarding oil waste management. Further discussion reveals the importance of implementing comprehensive coastal area management strategies to prevent and mitigate oil pollution. In conclusion, this project not only successfully achieved its goal of enhancing fishermen's capacity but also offers a replicable model for similar programs in other coastal areas. Therefore, active participation from fishing communities and continuous support from various stakeholders is essential for environmental sustainability and the well-being of coastal communities.
ANALISIS DESAIN SQUEEZE CEMENTING PADA SUMUR APR-04 Lauma, Aprilia C.; Djumantara, Maman; Pauhesti, Pauhesti
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 8, Nomor 2, Juli 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v8i2.15083

Abstract

Cementing merupakan salah satu faktor terpenting dalam kegiatan pemboran yang dimana kegiatan ini terbagi atas primary cementing dan secondary cementing. Squeeze cementing adalah bagian dari secondary cementing dimana merupakan penyemenan ulang dalam rangka perawatan sumur, menutup zona perforasi yang sudah tidak produktif lagi. APR adalah salah satu lapangan dari banyak lapangan di daerah Sumatra selatan yang dikelola oleh PT. Pertamina Hulu Rokan zona. 4. Metodologi yang digunakan pada penelitian ini bersifat deskriptif yakni menggambarkan dengan penjelasan mengenai parameter-parameter pada pekerjaan squeeze cementing.Penyemenan dilakukan pada kedalaman 1096 m hingga 1097,5 m. Total semen yang digunakan pada penyemenan adalah 42 sak. Penyemenan ini dikatakan berhasil ketika saat uji pressure, tidak terdapat semen yang masuk kedalam formasi dan top of cement berada pada titik yang diharapkan yakni pada kedalaman 3513,95ft.
Training on the use of Light Fire Extinguisher for Residents in densely populated housing Duri Pulo Subdistrict, Central Jakarta Pauhesti, Pauhesti; Feni Maulindani, Sri; Hartono, Kartika Fajarwati; Kurniawati, Riskaviana; Wastiyah, Lailatul; Dolfina Kilmas, Theresia; Wayan Nanik Juliantari, Ni; Saputra, Ade Kurniawan
International Journal Of Community Service Vol. 5 No. 3 (2025): August 2025 (Indonesia - Rusia - Malaysia)
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v5i3.871

Abstract

The dense population in a residential area often faces a high risk of fire. The main factor, apart from the dense population, is also due to limited access to fire extinguishers and vulnerable environmental conditions. A simple and effective solution to handle small fires before they spread widely is to use APAR (light fire extinguishers). This Community Engagement (Community service) activity aims to increase awareness and skills among residents in the use of APAR, so that they can better prepare for potential fires. This Community service was carried out in a densely populated area in the Duri Pulo sub-district, Central Jakarta. The Community service method was carried out through counseling and direct training on how to use APAR. At the end of this activity, 10 APAR units were handed over from the COMMUNITY SERVICE FTKE Trisakti University Team to Karang Taruna DuriPulo to be distributed and installed in strategic locations within the area.
Numerical Simulation Study using the Explicit Finite Difference Method for Petroleum Reservoir Maulindani, Sri Feni; Prima, Andry; Wibowo, Jati Arie; Rusdi, Pauhesti; Widiyatni, Harin
ComTech: Computer, Mathematics and Engineering Applications Vol. 16 No. 2 (2025): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v16i2.12191

Abstract

The behavior of petroleum reservoirs is inherently complex, making it challenging to determine their performance for both single-fluid and multiphase production systems. To accurately estimate the recovery reserves of a reservoir, a comprehensive understanding of its geometry and internal flow characteristics is essential. Numerical simulation serves as a fundamental tool for reservoir engineers, offering an efficient and reliable method to predict reservoir mechanisms, evaluate pressure variations, and estimate in-place hydrocarbon yield. This study employs mathematical modeling concepts and numerical techniques to analyze the dynamic behavior of petroleum reservoir systems. A flow model based on Partial Differential Equations (PDEs), specifically the diffusivity equation for unsteady-state fluid flow in porous media, is developed and applied. The diffusivity equation is discretized and solved mathematically using the explicit finite difference method to approximate pressure distribution over time and space. The primary objective of this research is to investigate and analyze the pressure distribution that governs reservoir performance under varying conditions. Sensitivity analyses are conducted to evaluate the influence of grid spacing, time step, hydraulic diffusivity, and boundary conditions on pressure reservoir behavior within a Cartesian grid for a one-dimensional, single-phase reservoir. The findings are expected to provide insight into the relationship between reservoir properties and fluid dynamics, supporting improved prediction of reservoir behavior. Ultimately, this research contributes to the optimization of petroleum production strategies and enhances the understanding of reservoir engineering processes through quantitative simulation.
USE OF ANOVA STATISTICAL METHOD IN EVALUATION OF TOFU WASTEWATER USED FOR SPIRULINA CULTURE MEDIUM ENRICHED WITH UREA AND NaHCO3 Maulani, Mustamina; Jasmine, Gabriella; Nugraheni, Rosmalia Dita; Djumantara, Maman; Nugrahanti, Asri; Satiyawira, Bayu; Rosyidan, Cahaya; Samura, Lisa; Widiyatni, Harin; Pauhesti, Pauhesti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 2, OCTOBER 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i2.16933

Abstract

Indonesia has a large amount of liquid waste originating from the tofu industry. Currently, the treatment of tofu industrial wastewater is carried out using both anaerobic and aerobic methods, but both methods still have several weaknesses. In this study, the tofu industrial wastewater was utilized as a culture medium for Spirulina sp. to provide economic value from wastewater that can be used as bioethanol, pharmaceuticals, and food products rich in omega 3, chlorophyll, carotenoids. Aim: The growth of Spirulina sp. is closely related to the availability of macro and micronutrients as nutrients and the influence of environmental conditions, so this study was aimed to see the best variation of the addition of urea and NaHCO3 as additional nutrients to maximize growth and cell density of Spirulina sp. with tofu industrial wastewater media. Methodology and Results: This study was done by culvitating Spirulina sp in the growth media, measuring the Optical Density (OD), and analyzing quantitatively and using ANOVA on IBM SPSS Statistics version 20. The study indicated that adding urea and NaHCO3 to Spirulina sp. had no effect on cell density and growth rate. Treatment with addition of urea 0.36 g/500 ml without additional of NaHCO3 had the highest growth rate, 0.00852/day, and the highest cell density value on Spirulina sp. growth. Conclusion, significance, and impact study: The tofu liquid waste can be used as a new alternative used as fertilizer because in the liquid tofu waste, it provides the nutrients needed by Spirulina sp.
SOSIALISASI DAMPAK DAN MANFAAT WILLOW PROJECT SEBAGAI PENGENALAN TEKNIK PERMINYAKAN DI SMA YOS SUDARSO METRO Yulia, Prayang Sunny; Wastu, Apriandi Rizkina Rangga; Ristawati, Arinda; Pauhesti, Pauhesti; Husla, Ridha; Timpal, Gracia Betaria Jacqueline; Wijayanti, Puri; Aryanto, Reza; Yanti, Widia
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 5 No 2 (2023): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v5i2.17404

Abstract

Willow Project berada di north slope Alaska, area National Petroleum Reserve, milik pemerintah federal Amerika Serikat. Berdasarkan isu yang beredar, adanya keingintahuan para siswa SMA Yos Sudarso Metro untuk mengetahui alasan dilakukannya pengeboran minyak, dampak serta manfaat dari pengeboran yang dilihat dari berbagai aspek. Pengabdian kepada Masyarakat (PkM) dengan tema Willow Project ini bertujuan untuk membantu para siswa menemukan solusi terkait hal ini, dengan pembahasan mengenai dampak dan manfaat dari sisi akademisi, khususnya teknik perminyakan. Metode yang digunakan yaitu pendekatan jarak jauh dengan mitra (Jakarta-Lampung) dan korespondensi secara digital. Para penyuluh mencari literatur yang relevan, baik dari sisi energi, serta dampak dan manfaat dikutip dari berbagai sisi seperti ekonomi, sosial, dan lingkungan. Pada PkM ini dijelaskan dampak yang terjadi terhadap lingkungan, iklim, dan sosial. Selain itu dipaparkan pula manfaat pengeboran Willow Project, yaitu penciptaan lapangan kerja dan manfaat ekonomi, kemandirian energi, dan pendapatan pajak. Inti dari dampak dan manfaat yang disampaikan, tetap diharapkan adanya pemanfaatan energi fosil guna meningkatkan lapangan kerja bagi masyarakat sekitar maupun internasional. Selain itu, juga tetap mengharapkan adanya pengembangan renewable energy, guna meminimalisir pengeboran di daerah-daerah konservasi, sehingga dapat mempertahankan keutuhan lingkungan.
Utilization of Solar Energy As An Environmentally Friendly Source of Electricity In Karang Taruna, Gambir District Yanti, Widia; Pratiwi, Reno; Yulia, Prayang Sunny; Fadliah, Fadliah; Pauhesti, Pauhesti; Rohman, Faiz; Istibra, M. Khair Dabit
International Journal Of Community Service Vol. 5 No. 4 (2025): November 2025 ( Indonesia - Thailand - Malaysia - Timor Leste - Philippines )
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v5i4.921

Abstract

This community service program titled "Socialization and Training on the Utilization of Solar Energy as an Environmentally Friendly Electricity Source in Karang Taruna, Gambir District" aimed to address the critical issues faced by the community due to their heavy reliance on unstable and costly fossil energy from PLN (the state-owned electricity company). The program also targeted the low understanding and practical skills related to solar energy and the underutilization of solar energy potential in urban settings. The implementation comprised two core components: socialization of solar energy and climate change impacts, and hands-on training on mini solar panel systems. Using interactive lectures, demonstrations, direct practices, and discussions, the program was conducted on March 16, 2025, involving 31 participants mainly from Karang Taruna members. A significant improvement in participants’ comprehension was observed, with average pre-test scores rising from 45 to 82, indicating an 82.22% increase. Furthermore, participant satisfaction reached 90.32%, alongside a 70.96% enhancement in practical ability to operate mini solar panel setups. Key outputs included teaching materials, posters, and scientific articles, collectively contributing toward enhanced community energy independence, reduced electricity costs, and promotion of clean energy adoption in urban areas.
Co-Authors Andry Prima Aqlyna Fattahanisa Aryanto, Reza Asri Nugrahanti, Asri Bayu Satiyawira Cahaya Rosyidan Djoko Sulistyanto, Djoko Dolfina Kilmas, Theresia Fadliah, Fadliah Feni Maulindani, Sri Ghanima Yasmaniar Harin Widiyatni Hartono, Kartika Fajar Hartono, Kartika Fajarwati Henk, Alvin Husla, Ridha Istibra, M. Khair Dabit Jane, Gabey Jasmine, Gabriella Kalasnikova Suparmanto , Albert Kurniawan Saputra, Ade Kurniawati, Riskaviana Lauma, Aprilia C. Lestari Said, Lestari Maman Djumantara, Maman Maulani, Mustamina Maulindani, Sri Feni Nugraheni, Rosmalia Dita Puri Wijayanti, Puri Raihan Azica , Muhammad Reno Warni Pratiwi Ristawati, Arinda Rohman, Faiz Samura, Lisa Saputra, Ade Kurniawan Sugiatmo Kasmungin, Sugiatmo Sunny Yulia, Prayang Timpal, Gracia Betaria Jacqueline Wastiyah, Lailatul Wastu, Apriandi Rizkina Rangga Wayan Nanik Juliantari, Ni Wibowo, Jati Arie Widia Yanti, Widia Yarra Sutadiwiria Yulia, Prayang Sunny