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All Journal JURNAL FISIKA SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Jurnal Fisika FLUX PROSIDING SEMINAR NASIONAL CENDEKIAWAN Science and Technology Indonesia JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Communications in Science and Technology Jurnal Teori dan Aplikasi Fisika Journal of Applied Engineering and Technological Science (JAETS) Jurnal Abdi Masyarakat Indonesia Automotive Experiences 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) Wahana Fisika : Jurnal Fisika dan Terapannya JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)

Cahaya Rosyidan

Universitas Trisakti

Author-ID : 506856

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

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EVALUATION OF TARIFFS OF TRANSPORTING NATURAL GAS (TOLL FEES) ON PIPE SECTION X BY ANALYZING THE SENSITIVITY THE SENSITIVITY OF THE COST OF SERVICE PARAMETERS Aulia Alfath; Bayu Satiyawira; Cahaya Rosyidan; Havidh Pramadika; Ratnayu Sitaresmi; Livia Ailen Dharma
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 9 No. 2 (2020): JUNI
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Indonesia has large enough gas reserves to meet household and industrial needs. It's just that, the price or the existing gas-related system is not maximal yet. One of the things that can ease the burden on the state is the use of household gas networks, some people are still hesitant to use it even though the price is relatively cheap compared to LPG. In determining the gas price, one of the components that has an effect on determining the gas price is the toll fee through pipes to be channeled. So the authors aim to conduct this research in order to educate and maximize solutions for energy dependency, for example the location I took is located in North Sumatra Province, with a pipeline stretching 156.5 km from X1 to X3. With OD 16 "along 18.5 km and existing OD 12" along 138 km. The maximum capacity of the two pipes is 150 MSCFD and 75 MSCFD, and the average volume that flows is not up to 10%. The construction of the pipe requires a cost of $ 42,391,716 USD, and nearly 55% of the total is pipe material including fittings, coatings, and others. With an average annual revenue of $ 11.561943 this project alone should have been able to return on investment for less than 5 years. With tariff analysis, the amount can be optimized with volume by reducing a few dollars per MSCF, to $ 7.49 making it more economical.

PEMANFAATAN BIODEMULSIFIER UNTUK MENURUNKAN KADAR AIR TERCAMPUR havidh pramadika; bayu satiyawira; cahaya rosyidan; zakiah darajat
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 10 No. 1 (2021): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Emulsion is one of the problems that is often found in the petroleum production process which needs to be avoided because it can reduce the economic value of oil, the large water content in oil makes the selling price low, even if the water content of the oil is above the standard, the oil may not be accepted in the market. Therefore, this study will try to reduce the water content in the oil, while the formulation of the problem in this study is, knowing whether citric acid from lemon can be used as a demulsifier, knowing what concentration is the most optimal, and knowing whether citral acid from lemon is more optimal than in the NaCl and KCl demulsifier, increasing the concentration of 60% was proven to also increase separate water, where at a concentration of 30% citric acid was the highest to make water separate by 58% while increasing the concentration to 60% was also able to increase water separated by up to 92% minutes 1440 , from that experiment on do the concentration greatly affects the separate water and lemon citric acid can be used as a demulsifier.

MODIFICATION OF NATURAL BENTONTE WITH POLICATION OF Al FROM AlCl3 AS A PILLARING AGENT IN PRODUCED WASTE WATER Ammar Ammar; Suryo Prakoso; Cahaya Rosyidan
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 1 (2022): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

The oil and gas production process will produce oil, gas and water. The water that is also produced will be used as an injection to push the remaining oil that is still in the reservoir. The purpose of this study was to determine the increase in the adsorption efficiency of bentonite that has been modified by the Al polycation of AlCl3. This research begins with the preparation and purification of impurities and then modifies it with the intercalation process of Na ions from the NaCl intercalator, then pillared with the pillaring agent AlCl3. Natural bentonite resulting from intercalation, and pillarization was characterized and tested. The characterization results showed an increase in Na ions in intercalated bentonite and an increase in Al ions in Al pillared bentonite or pillarized bentonite. The results of the study provide evidence that the absorption of an adsorbent is influenced by the concentration of the adsorbent, surface area, temperature, solution pH, and the effect of contact time. This research shows that the adsorption isothermal used is the Freundlich isothermal.

PELATIHAN LUMPUR PEMBORAN BERBAHAN DASAR AIR ASIN BAGI GURU DAN SISWA SMK MIGAS CIBINONG, JAWA BARAT Cahaya Rosyidan; Bayu Satiyawira; Mustamina Maulani; Havid Pramadika; Maman Djumantara; Asri Nugrahanti; Arinda Riswati
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 1 No 1 (2019): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Pada operasi pemboran digunakan fluida pemboran untuk membantu kelancaran operasi pemboran. Fluida tersebut adalah lumpur pemboran dan lumpur. Lumpur pemboran yang digunakan ada dua jenis yaitu lumpur berbahan dasar air dan minyak. Lumpur berbahan dasar air sering digunkan pada operasi pemboran karena lebih murah. Namun pada kondisi terterntu harus ditambahkan zat aditif. Kegiatan PKM ini bertujuan untuk mengenalkan kepada mahasiswa bagaimana membuat lumpur pemboran berbahan dasar air asin. Selain itu siswa – siswa SMK diharapkan mampu untuk menggunakan alat – alat praktikum dan bahan – bahan kimia yang digunakan. Sebelum memulai kegiatan pelatihan semua alat – alat yang digunakan harus di kalibrasi terlebih dahulu untuk mengetahui kelayakan dari alat tersebut. Sehingga data yang diperoleh valid dan dapat dipertanggung jawabkan oleh para siswa. Kegiatan pemboran dikenal sebagai suatu kegiatan yang sangat berbahaya, beresiko tinggi, dan berbiaya tinggi. Penggunaan lumpur pemboran yang baik, akan dapat meningkatkan produktivitas kegiatan pemboran.

ANALISIS KEEKONOMIAN PADA SKEMA PSC GROSS SPLIT DENGAN MENGGUNAKAN TIGA SKENARIO HARGA hanz seca rifansyah cipta maheza; Ir Bayu Satiyawira M.Si; Dra. Lisa Samura, M.T; Puri Wijanti; Mustamina Maulani; Cahaya Rosyidan
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 3 (2022): SEPTEMBER
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.v11i`3.14381

Lapangan HNZ merupakan lapangan yang memiliki potensi besar dalam memproduksikan minyak bumi, dengan memiliki 6 sumur infill, 2 injeksi dan 1 step out. Dalam memproduksikan minyak bumi, pada saat ini Indonesia memiliki dua skema kontrak yang berlaku yaitu skema kontrak PSC cost recovery dan skema kontrak PSC gross split. Skema PSC gross split merupakan skema yang dikeluarkan oleh pemerintah Indonesia sebagai pembanding dari skema kontrak PSC cost recovery yang sudah digunakan sebelumnya yang dianggap sebagai skema kontrak yang kurang efektif digunakan dan dirasa bahwa skema kontrak PSC cost recovery ini merugikan bagi pihak pemerintah. Maka melalui Permen ESDM No. 52 tahun 2017 yang merupakan hasil revisi dari Peraturan Menteri ESDM No.08 tahun 2017, dikeluarkanlah skema PSC gross split dengan skema dimana pihak kontraktor akan menanggung seluruh biaya operasional pengembangan lapangan migas. Pada penelitian kekonomian pada lapangan HNZ bertujuan untuk mengetahui bagaimana keekonomian pada lapangan HNZ menggunakan PSC gross split.

PEMANFAATAN KOMPOSIT NATURAL BENTONITE DAN AMPAS TEBU SEBAGAI PENJERNIH AIR LIMBAH INDUSTRI TAHU HARAPAN MAJU Lisa Samura; Muhammad Burhannudinnur; Suryo Prakoso; Cahaya Rosyidan; Raka Handika Putra; Gemintang Atlantika Urbiyanto; Hilyah Auliya
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 4 No 2 (2022): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v4i2.13440

Industri tahu adalah industri yang didominasi oleh usaha-usaha skala kecil dengan modal yang terbatas dan tersebar di seluruh wilayah Indonesia. Salah satunya adalah industri tahu Harapan Maju (HS) di Cimanggis, Depok, Jawa Barat. Industri ini masih menggunakan cara tradisional dengan membuang limbah ke sungai. Jika langsung dibuang ke sungai, limbah tahu dapat mencemari lingkungan. Oleh karena itu sebelum limbah dibuang, sebaiknya dijernihkan terlebih dahulu untuk menjaga lingkungan. Salah satu metode penjernihan adalah dengan menggunakan bentonit dan karbon aktif ampas tebu. Bentonit memiliki kemampuan untuk menyerap zat organik yang baik dan mengikat padatan yang relatif kecil dalam air. Sedangkan karbon aktif ampas tebu berfungsi sebagai penjernih dan menyerap logam berat pada air limbah. Proses yang terjadi adalah proses adsorpsi atau proses pemisahan zat padat dari fluida dengan jalan melewatkan fluida melalui medium penyaring atau septum sehingga zat padat akan tertinggal pada medium. Teknologi sederhana ini sangat efektif bila diaplikasikan dalam pengolahan air limbah industri tahu. Sebelum pengujian nilai BOD 714 mg/L, TDS 1129 mg/L, COD 1152 mg/L dan pH air limbah adalah 4. Pengujian dengan menggunakan kombinasi ampas tebu dan bentonit pada sampel 2c yaitu ampas tebu 1 gr dan bentonit 0.1 gr memberikan hasil yang terbaik, dimana nilai BOD 142,8 mg/L, TDS 407 mg/L, COD 195,84 mg/L dan pH 6 yang memenuhi standar Permen LH no.51 tahun 1995.

BIBLIOMETRIC ANALYSIS ON NUMERICAL LITHOFACIES IDENTIFICATION FOR RESERVOIR CHARACTERIZATION IN THE PERIOD OF 1980 -2021 Imam Setiaji Ronoatmojo; Muhamad Apriniyadi; Rosmalia Dita Nugraheni; Cahyaningratri Prima Riyandhani; Cahaya Rosyidan Rosyidan; Yarra Sutadiwiria
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 4 (2022): DESEMBER
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.v11i4.14424

The term "electrofacies" was introduced in 1980 by Serra and Abbott, it had been developed promptly since 2009. The development was triggered predominantly by wireline logging technology and artificial intelligence technology. The electrofacies categorization was intended to facilitate the study of reservoir characterization. However, it is difficult to formulate deterministically, due to the uniqueness of the depositional environment and geological processes that involve many physical properties. At least, there are 369 articles which were obtained from Scopus sources in the period of 1980 - 2021. In this bibliometric analysis, we regrouped the articles into four groups, i.e. “pattern recognition” “facies analysis”, “objectives” and “quality”. This grouping was attained on the methods of co-occurences, co-authorship, citation analysis and bibliographic coupling using VOSviewer software. The distance and coupling between themes will determine the level of quality and quantity of discussion between them. The quality of the objective resides in the certainty value of the lithology controlled by transportation or diagenetic events. For example, sand and shale which are siliciclastic lithology will have a higher degree of certainty than carbonate rocks. Therefore, the wide gap occurred during the application of artificial intelligence, especially for complex facies and uncertain geological conditions. The application of artificial intelligence is not solely functional without involving geological analysis. The implication is some researchs are still needed from this point of view, so the electrofacies role cannot be independent without developing models of the diagenetic process.

EVALUASI PENANGGULANGAN LOST CIRCULATION LAPANGAN X Pauhesti Pauhesti; Alfiandi Sembiring; Maman Djumantara; Lisa Samura; Cahaya Rosyidan
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 12 No. 2 (2023): JUNI
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.v12i2.14383

Lost Circulation adalah sebuah kasus hilangnya sebagian atau seluruh sirkulasi lumpur pemboran masuk ke dalam formasi yang sedang dibor sehingga sirkulasi lumpur pemboran tidak sempurna. Pada kegiatan pemboran di Lapangan X ini, terdapat sumur yang diindikasi mengalami masalah yaitu Lost Circulation. Lost Circulation yang terjadi terindikasi berada pada Formasi Bekasap dengan lithologi batuan limestone. Pada sumur ini terjadi total lost, dimana penyebab Lost Circulation dikarenakan formasi yang memiliki lubang pori yang cukup besar sehingga terbentuk rongga-rongga atau terbentuk gua(cavern) dan tekanan Formasi lebih kecil daripada tekanan Hidrostatik begitu juga tekanan Formasi lebih kecil dari Tekanan Surge. Dimana setelah dilakukan perhitungan pada kedalaman 634 ft terjadi lost circulation atau hilangnya sirkulasi pada kedalaman 356 ft yang dimana sumur ini mengalami total lost. Didapatkan tekanan formasi 45 psi,tekanan hidrostatik 151.79 psi, tekanan rekah formasi 146.24 psi, EMW 7.9 psi, ECD 9.0 psi, BHCP 163.56 psi, dan Pressure surge 163.56 psi. Dapat disimpulkan lost terjadi karena Tekanan Hidrostatik lumpur yang melebihi tekanan formasi dan Tekanan Surge yang melebihi Tekanan Formasi sehingga menyebabkan formasi menjadi rekah. Kemudian dilakukan metode penanggulangan menggunakan Lost Circulation Material (LCM) CaCO3 Coarse dan Blind Drilling. Kata kunci: Hilang Lumpur, Lost Circulation

USE OF ANOVA STATISTICAL METHOD IN EVALUATION OF TOFU WASTEWATER USED FOR SPIRULINA CULTURE MEDIUM ENRICHED WITH UREA AND NaHCO3 Mustamina Maulani; Gabriella Jasmine; Rosmalia Dita Nugraheni; Maman Djumantara; Asri Nugrahanti; Bayu Satiyawira; Cahaya Rosyidan; Lisa Samura; Harin Widiyatni; 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

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.

SUATU STUDI PEMODELAN VISKOELASTIK MATERIAL BENANG VIZ 100% WOOL 36 TEX MENGGUNAKAN PENDEKATAN FISIKA Valentinus Galih Vidia Putra; Andrian Wijayono; Irwan .; Tina Martina; Cahaya Rosyidan
Wahana Fisika Vol 4, No 1 (2019): June
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/wafi.v4i1.15500

Suatu model matematis viskoelastik untuk menentukan besar koefisien viskos serta koefisien elastik suatu benang tekstil telah dikaji pada penelitian ini. Suatu persamaan matematis benang tekstil viz. 100% wool yang memiliki nomor benang 36 tex atau 36 (g/km) telah dirumuskan menggunakan mekanika klasik. Hasil studi memperlihatkan bahwa pemodelan ini dapat digunakan untuk menentukan sifat viskoelastik material berdasarkan sifat stress relaxation.

Co-Authors - Sunardi - Sunardi Abdul Hamid Agus Jamaludin Alfiandi Sembiring Aliya Mayendra Ammar Ammar Andreas Junianto Andreas Junianto Andry Prima Anggrainy, Rani Arinda Riswati Arkaan, Muhammad Dzaki Aryanto, Reza Asri Nugrahanti Asri Nugrahanti, Asri Aulia Alfath Auliya, Hilyah Bambang Soegijono Bambang Soegijono Basori Basori Basori Bayu Satiyawira Bayu Satyawira Bayu Satyawira Bayu Satyawira, Bayu Budhy Kurniawan Bujasuandi Maulana Cahyaningratri Prima Riyandhani Dalimunthe, Yusraida Khairani Daniel Edbert Daniel Edbert, Daniel Dio Rekayandra Djunaedi Agus Wibowo Dwi Nanto, Dwi Dwi Nuryana, Suherman DWI YULIANTI Etty Mutiara Evi Ulina Margareta Situmorang Evi Ulina Margaretha Situmorang Ezenwune, Jose Andreas Ferry Budhi Susetyo Ferry Budhi Susetyo Gabriella Jasmine Galih Vidia Putra, Valentinus Gemintang Atlantika Urbiyanto hanz seca rifansyah cipta maheza Harin Widiyatni Havid Pramadika Havidh Pramadika Heri Hardiyanti Hidayat, Hifdzan Rizki Hidayat, Hifzhan Rizki Hilyah Auliya Imam Setiaji Ronoatmojo Irwan . Irwan . Irwan Irwan Jasmine, Gabriella kartika fajarwati hartono Kashah, Muhammad Refli Koesmawardani, Wildan Tri Kurniawan, Ova Livia Ailen Dharma Lubi, Ahmad Lukas Pearlo, Kevin M.T Fathaddin Maman Djumantara Maman Djumantara, Maman Maman Kartaman Ajiriyanto Mansor, Muhd Ridzuan Maulani, Mustamina Michael, David Mixsindo Korra Herdyanti Mohamad, Juliany Ningsih Mohammad Apriniyadi Muh Taufiq Fathaddin Muhammad Burhannudinnur Muhammad Burhannudinnur Muhammad Burhannudinnur Muhammad Yunan Hasbi Mulia Ginting, Mulia Mustamina Maulani Mustamina Maulani Nababan, Frederik Gresia Nadhira Andini Nugraheni, Rosmalia Dita Onnie Ridaliani Onnie Ridaliani, Onnie Pantjanita Novi Hartami Pauhesti Pauhesti Pauhesti Pauhesti Pauhesti Pauhesti, Pauhesti Pearlo, Kevin Lukas Pramadika, Havid Prapansya, Onnie Ridaliani Puri Wijanti Putra, Raka Handika Putra, Valentinus Galih Vidia Raihan Ramadhan Raisha Marsha Raka Handika Putra Ratnayu Sitaresmi Renanda, Raka Ilham Ririn Yulianti Riswati, Arinda Risyad Baihaqi Rizki Ananda Parulian Rosika Kriswarini Rosmalia Dita Nugraheni Rosmalia Dita Nugraheni Ruliyanta Samsol Samura, Lisa Shabrina Sri Riswati Sigit Rahmawan Soekardy, Mentari Gracia Suherman Dwi Nuryana Suryo Prakoso, Suryo Syamsuir, Syamsuir Tina Martina Tina Martina, Tina Totong Irwan Tri Yulianto Urbiyanto, Gemintang Atlantika Valentinus Galih Vidia Putra Valentinus Galih Vidia Putra Widia Yanti, Widia Wijayono, Andrian wiwik dahani, wiwik Yarra Sutadiwiria Yudanto, Sigit Dwi zakiah darajat

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