Article Per Year (5 Year)
p-Index From 2020 - 2025
4.019
P-Index
This Author published in this journals
All Journal PENELITIAN DAN KARYA ILMIAH PROSIDING SEMINAR NASIONAL CENDEKIAWAN ComTech: Computer, Mathematics and Engineering Applications Jurnal Pengabdian Farmasi Malahayati (JPFM) International Journal of Community Service JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Jurnal Peradaban Masyarakat (JPM) Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal AKAL: Abdimas dan Kearifan Lokal Petro : Jurnal Ilmiah Teknik Perminyakan JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Inovasi Pengabdian Masyarakat Jurnal Migasian Spectrum: Multidisciplinary Journal Science and Technology: Jurnal Pengabdian Masyarakat
Harin Widiyatni
Universitas Trisakti
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 26 Documents
Search

 1   2   3 
PEMBUATAN EKOENZIM DARI LIMBAH KULIT BUAH NANAS PADA MASYARAKAT PEDULI LINGKUNGAN DI DESA CIGOMBONG, BOGOR Rini Setiati; Qurotu Aini Besila; Dewi Syavitri; Pri Agung Rakhmanto; Harin Widiyatni
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 5 No 1 (2023): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v5i1.14031

Abstract

Eco enzyme is a product of organic waste derived from vegetables and fruits, fermented with sugar in a container and allowed to stand for three months to become an active solution. The use of eco-enzyme as a natural cleaning solution contributes to protecting the environment because it treats household-scale organic waste. The community service program aims to enhance Cigombong Village's potential with a community that cares about the environment that has been formed. The eco enzyme can be used to clean all areas of the house, clothes, vegetables, and fruits, fertilize plants, eliminate pests, and improve the quality of plants; the eco enzyme is also very effective in repelling plant pests. The eco enzyme can also be utilized to stimulate plant hormones to enhance fruit and vegetable quality and improve crop yields. Making eco enzymes can be done simply, using easily available equipment. The raw materials for eco enzyme consist of brown sugar, water, and fruit peel waste in a ratio of 1:10:3. The container used for the eco enzyme is a plastic jar with a lid. A training program for making eco enzymes from fruit and vegetable peel waste can protect the environment, increase community plantation yields and make Cigombong village a fruit tourism village.
Calculation of Fluid Flow Velocity in a Sloping Reservoir with Variable Datum Levels Satiawati, Listiana; Dalimunthe, Yusraida Khairani; Widiyatni, Harin; Yulia, Prayang Sunny; Abdillah, Ridho
Spectrum: Multidisciplinary Journal Vol. 2 No. 2 (2025): Spectrum: Multidisciplinary Journal
Publisher : Sapta Arga Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Knowledge and calculation of the nature of fluid flow in sloping reservoirs is very important in oil and gas exploration activities, because on its journey from the source rock (source rock) to migrate to the reservoir, the fluid will pass through rocks which are often non-structural in the form of slopes. in the reservoir. Therefore, calculating oil and gas flows for sloping reservoirs is very important. Slope fault theory is a new idea in searching for non-structural reservoirs, because it is increasingly difficult to find large-scale structural reservoirs. Therefore, structural-lithological reservoirs in slope areas have gradually become the focus of exploration, and on slopes are favorable places for oil and gas accumulation. To calculate fluid flow in a sloping reservoir using the derivation of the Darcy equation, the datum level is a variable that can be selected from the bottom point to the top point of the reservoir height. The problem is whether the flow velocity calculation results are the same for any point. This is to make measurements easier in oil and gas fields. This research will prove that random selection of the datum level does not change the flow velocity value of the flowing fluid. Firstly, in this article, the fluid flow velocity will be calculated using the three datum level points used. Calculations use the usual/manual method with a calculator and it is proven that the calculation results are the same. Then all points from the bottom to the top of the reservoir height will be calculated. The method that will be used uses a lot of data to prove the results are the same. Because there are quite a lot of calculations, the calculations will be calculated numerically by coding using the Fortran program. It turns out from the programming results that the fluid flow rate in a sloping reservoir has the same value using datum level data calculated from the bottom to the height of the reservoir with an increase of every 1 ft. So it is concluded that calculations using datum levels can be done anywhere in the height range of oil and gas reservoirs.
Dampak Pelatihan Pengolahan Limbah Kulit Kacang Tanah Sebagai Bahan Bakar Alternatif di Kecamatan Parung Panjang, Bogor Dalimunthe, Yusraida Khairani; Satiawati, Listiana; Widiyatni, Harin; Dahani, Wiwik; Madani, Thariq; Ananda Rizky, Teuku; Sugiarti, Lisa
Jurnal Migasian Vol 9 No 1 (2025): Jurnal Migasian
Publisher : LPPM Institut Teknologi Petroleum Balongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jm.v9i1.318

Abstract

Tujuan dari pelatihan limbah kulit kacang tanah yang digunakan sebagai bahan bakar alternatif di Kecamatan Parung Panjang, Bogor adalah untuk meningkatkan pemahaman masyarakat tentang energi terbarukan, termasuk biomass yang berasal dari limbah kulit kacang tanah. Sebelum pelatihan, angket didistribusikan untuk mengetahui tingkat pengetahuan warga tentang energi terbarukan. Selanjutnya, warga diajari tentang tata cara pembuatan briket dari limbah kulit kacang tanah melalui demo video serta manfaat ekonominya. Di akhir kegiatan, angket diberikan lagi untuk mengetahui sejauh mana pengetahuan warga meningkat sebagai hasil dari kegiatan ini. Evaluasi kegiatan menunjukkan bahwa semua peserta mendapatkan manfaat dan memperluas pengetahuan mereka tentang briket dari limbah kulit kacang tanah dan seluruh responden menyatakan bahwa mereka berharap untuk menggunakan briket ini sebagai pengganti bahan bakar dalam bisnis rumah tangga atau di industri makanan dan manufaktur lainnya di masa depan.
EVALUASI FLUID ABOVE PUMP UNTUK OPTIMASI ELECTRICAL SUBMERSIBLE PUMP PADA LAPANGAN SLN Kurniadi, Ahmad Dzikri; Rahmawan, Sigit; Widiyatni, Harin
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 14 No. 1 (2025): Maret 2025
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v14i1.17392

Abstract

The SLN field is a field that has several fields and produces fluids using artificial lift, specifically electrical submersible pumps (ESP). The objective of this research is to obtain the latest recommended value for fluid above the pump (FAP) by evaluating the FAP in each field within the SLN field. This will help determine the minimum fluid above the pump as a reference for future operations in the SLN field. In this study, the method used to calculate the fluid above the pump involves interpolating the FAP data with casing pressure, gas production, and gas-oil ratio (GOR) data. This is done to obtain the best regression graph and determine the minimum FAP value. Based on the research conducted on the evaluation of fluid above the pump in the Dik 01 and Dik 02 fields, the results for the Dik 01 field indicate that when the FAP is low, the gas production rate (Qg) and GOR are also low, indicating the absence of free gas. Conversely, when the FAP is high, there is an indication of free gas. The minimum FAP values obtained for the Dik 01 field are 1918 ft for Qg (Mscf/d) and 1967.44 ft for GOR (scf/stb). The results for the Dik 02 field show that a high FAP value corresponds to a low Qg and GOR, indicating the absence of gas. Conversely, a low FAP value corresponds to a high Qg and GOR, indicating the presence of free gas. The minimum FAP values obtained for the Dik 02 field are 3895 ft for Qg (Mscf/d) and 3776.32 ft for GOR (scf/stb).
PENYULUHAN DAN PELATIHAN PEMBUATAN SABUN DARI MINYAK JELANTAH DI KELURAHAN CURUG KOTAMADYA BOGOR Fathaddin, Muhammad Taufiq; Prapansya, Onnie Ridaliani; RakhmantoPri Agung Rakhmanto, Pri Agung; Widiyatni, Harin; Maulani, Mustamina; Azica, Muhammad Raihan; Rachmaputra, Try
Jurnal AKAL: Abdimas dan Kearifan Lokal Vol. 6 No. 2 (2025): Jurnal AKAL : Abdimas dan Kearifan Lokal
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/akal.v6i222564

Abstract

Minyak jelantah dapat menimbulkan dampak buruk terhadap masalah pada kesehatan. Minyak jelantah juga menimbulkan masalah pada lingkungan. Di sisi lain minyak jelantah dapat diolah menjadi sabun. Sehingga pemanfaatan minyak jelantah dapat mengurangi limbah rumah tangga di Indonesia yang terus meningkat dari tahun ke tahun. Berdasarkan permasalahan tersebut tujuan dari kegiatan pengabdian kepada masyarakat ini adalah untuk memberikan penyuluhan dan pelatihan khususnya kepada Masyarakat di RW 5 yang berlokasi di RW 13, Kelurahan Curug, Kecamatan Bogor Barat, Kota Madya Bogor. Kegiatan ini mendapat antusiasme yang tinggi dari masyarakat setempat. Berdasarkan evaluasi terhadap perbandingan penilaian pre-test dan post-test yang dikerjakan oleh peserta memperlihatkan kenaikan dari nilai rata-rata 35,0 menjadi 80,7 atau kenaikan rata-rata sebesar 130,6%. Selain peningkatan pemahaman dan keahlian mengenai pembuatan sabun, para peserta juga termotivasi menjadi masyarakat yang produktif di samping meningkatkan kepedulian untuk memelihara kelestarian lingkungan.
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 (in press)
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.
Co-Authors Abdillah, Ridho Ahmad Naufal Guthni Russaputro Ananda Rizky, Teuku Andry Prima Aqlyna Fattahanisa Arinda Ristawati Asri Nugrahanti Azica, Muhammad Raihan Bayu Satiyawira Cahaya Rosyidan Dalimunthe, Yusraida Khairani Danar Wijayanto Diah Utami Safitri Dolfina Kilmas, Theresia Ferryan Fernando Gabriella Jasmine Grace BS Hafiz, Surya Darma Jane, Gabey Kalasnikova Suparmanto , Albert Kurniadi, Ahmad Dzikri Kurniawan Saputra, Ade Kurniawati, Riskaviana Lestari Lestari Lestari Lestari Listiana Satiawati Listiana Satiawati, Listiana Madani, Thariq Maman Djumantara Maulani, Mustamina Maulindani, Sri Feni Muhammad Taufiq Fathaddin, Muhammad Taufiq Mustamina Maulani Onnie Ridaliani Pauhesti Pauhesti Pauhesti, Pauhesti Prapansya, Onnie Ridaliani Pri Agung Rakhmant Pri Agung Rakhmanto Pri Agung Rakhmanto Qurotu Aini Besila Rachmaputra, Try Raihan Azica , Muhammad Rakhmanto, Priagung RakhmantoPri Agung Rakhmanto, Pri Agung Reno Pratiwi Rini Setiati Rosmalia Dita Nugraheni Rozi Afdi Russaputro, Ahmad Naufal Guthni Samsol Samura, Lisa Sigit Rahmawan Sugiarti, Lisa Sunny Yulia, Prayang Surya Darma Hafiz Syavitri, Dewi Taat Tri Purwiyono Wastiyah, Lailatul Wibowo, Jati Arie Widia Yanti, Widia Widrajat AK wiwik dahani, wiwik Yarra Sutadiwiria Yulia, Prayang Sunny Zona Nuansa Adha Antariksa