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All Journal Journal of Applied Engineering and Technological Science (JAETS) Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Earth Energy Science, Engineering, and Technology SENADA : Semangat Nasional Dalam Mengabdi

kartika fajarwati hartono

Petroleum Engineering Department, Universitas Trisakti

Author-ID : 3198926

Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Other

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Articles

LIQUID HOLDUP MANAGEMENT BY PREDICTING STEADY STATE TURNDOWN RATE IN WET GAS PIPELINE NETWORK kartika fajarwati hartono; Muhammad Taufiq Fatthadin; Reno Pratiwi
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 5 No. 2 (2016): Agustus
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Now days, one of the greatest challenges in gas development is transport the fluid especially multiphase fluid to long distances and multiphase pipeline to sell point. Yet, a challenge to transport multiphase fluid is how to operate the systemsin operating a long distance, large diameter, and multiphase pipeline.The operating system include how to manage high liquid holdup, mainly built during low production rate (turn down rate) periods especially during transient operations such as restart and ramp-up, so that liquid surge arriving onshore will not exceed the liquid handling capacity of the slug catcher. The objective of this research is to predict liquid trapped in pipeline network by analysis turn down rate in order to determine minimal gas production rate for stable operation. This research was carried out by two steps: Simulation Approach and Optimization Techniques. Simulation approach include define fluid composition and built pipeline network configuration while optimization technique include conduct scenario for turn down rate. The fluid composition from wellhead to manifold is wet gas. First scenario and Second scenario of turndown rate yield minimum gas rate for stable operation. The pipeline has to be operated above 600 MMSCFD from peak gas production rate is 1200 MMSCFD (A-Manifold Mainline) and 60 MMSCFD from peak gas production rate is 150 MMSCFD for D-Manifold Mainline.

KONSENTRASI SILIKA DALAM UAP ENTALPI TINGGI PADA INLET TURBIN PLTP 150 MW.ELECTRIC Kris Pudyastuti; Kartika Fajarwati Hartono; Fadliah Fadliah; M. Syarif Fadhlurrahman
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 7 No. 1 (2018): April
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Secara luas diyakini bahwa kelarutan silika (SiO2) di dalam uap panas bumi bertekanan rendah (5-10 bar) bisa diabaikan. Namun demikian ketika aliran massa uap yang melebihi 1.249 (10)7 ton per tahun diperhitungkan, maka akan ditemukan bahwa jumlah silika terlarut di dalam uap yang ditransmisikan ke jaringan produksi memiliki potensi untuk memberikan endapan yang signifikan pada nosel turbin dan blade.Tulisan ini menjelaskan bagaimana menghitung jumlah silika terlarut dalam uap yang dipisahkan dari fluida panas bumi suhu tinggi (entalpi tinggi), pada inlet turbine sebuah PLTP. Data TDS silika terlarut di dalam fluida panas bumi suhu tinggi yang digunakan dalam studi ini merupakan informasi yang diambil dari beberapa publikasi. Proporsi silika di dalam uap pada inlet turbine dihitung dengan menggunakan hubungan sederhana, yaitu rasio konsentrasi silika dalam uap dan air versus rasio densitas dalam uap dan air.Hasil perhitungan menunjukkan bahwa sebuah PLTP 150 MWelectric , yang memanfaatkan aliran massa fluida dari reservoir liquid dominated 250 oC, dengan separator tekanan 10 bar, telah membawa sekitar 278 kg per tahun larutan silika dalam fase uap.

Laboratory Studies to Increase Oil Production Using Methyl Ester Sulfonate Injection on X Field Aditya Rachman; Rini Setiati; Kartika Fajarwati Hartono
Journal of Earth Energy Science, Engineering, and Technology Vol. 2 No. 3 (2019): JEESET VOL. 2 NO. 3 2019
Publisher : Penerbitan Universitas Trisakti

The majority of petroleum production comes from the brown field where production has decreased from year to year in Indonesia. To increase the recovery factor of petroleum from the reservoir, an advanced step of production is required, Enhanced Oil Recovery (EOR), which can optimize the depletion of old oil fields. EOR is the application of technology that requires cost, technology and high risk. Therefore, before implementing EOR, in a field, we must carefully evaluate both technically and economically to obtain an optimal additional recovery. This research was conducted to increase oil production by injection of Methyl Ester Sulfonate (MES). This study begins with a screening parameter crude oil, formation water, Berea’s core, and determination of phase behavior, interfacial tension (IFT), thermal stability, imbibition, and core flooding tests. The result for concentratin optimum in 0.3% MES and had IFT 0.3267 dyne/cm. The results of core flooding tests are: Recovery factor of waterflooding is 33.95 % and recovery factor of MES injection is 4.19 %.

Study of Polymer Flooding Behavior in Heterogeneous Two-Layered Porous Media Muhammad Taufiq Fathaddin; Kartika Fajarwati Hartono; Trijana Kartoatmodjo
Journal of Earth Energy Science, Engineering, and Technology Vol. 3 No. 1 (2020): JEESET VOL. 3 NO. 1 2020
Publisher : Penerbitan Universitas Trisakti

In this paper, a numerical study was conducted to investigate the effect of spatial heterogeneity of multiple porosity fields on oil recovery, residual oil saturation, polymer retained, and polymer adsorption. The generated porosity fields were applied to UTCHEM for simulating polymer and water flooding in heterogeneous two-layered porous media. From the analysis, the increase of reservoir heterogeneity resulted in higher polymer retention and lower polymer adsorption. In general, polymer flooding results in more balance residual oil saturation in the upper and lower layer than water flooding. This indicated that the vertical sweep efficiency of polymer flooding was better than water flooding. Residual oil saturation ratio between layers after water or polymer flooding was about equal along with the increase of reservoir heterogeneity. Spatial heterogeneity of multiple porosity fields had only a small effect on recovery factor. The variation of the recovery factor of polymer and water flooding due to the reservoir heterogeneity was under 1%.

Analysis of the Zeolite Size Effect on the Content of Chemical Compounds in Acid Activated Natural Zeolite Fadliah Fadliah; Reno Pratiwi; Wiwik Dahani; Riskaviana Kurniawati; Kartika Fajarwati Hartono; Dina Asmaul Chusniyah; Lailatul Wastiyah; Hadi Purnomo
Journal of Earth Energy Science, Engineering, and Technology Vol. 4 No. 3 (2021): JEESET VOL. 4 NO. 3 2021
Publisher : Penerbitan Universitas Trisakti

One of the zeolite producing areas in Indonesia is Sukabumi. Natural zeolite originating from Sukabumi is composed of three main types of minerals: mordenite, clinoptilolite, and quartz. Zeolite as a catalyst can be improved by carrying out physical and chemical activation processes. Physically the catalyst can be activated by reducing the size of the zeolite through the grinding and sieving method. This physical activation process can increase the surface area of the zeolite. In this study, variations in the size of zeolite 80 mesh and 100 mesh were carried out that chemically activated by the acid activation method through immersion of natural zeolite with HCl and HF from this acid activation process it will increase the acidity of the zeolite. Measurement of functional groups and chemical compounds in activated zeolite using XRF and FTIR. The results of XRF analysis showed that the SiO2 content in 80 mesh zeolite was 69.5% and in 100 mesh zeolite was 82.1% and the FTIR analysis showed the presence of the C-H alkene functional group at a wavelength of 675-995 cm-1, ring C-H aromatic at a wavelength of 690-900 cm-1, C-O alcohol/ether/carboxylic acid/ester at wavelength 1610-1680 cm-1, functional group C=C alkene 1610-1680 cm-1, the O-H functional group is carboxylic acid at a wavelength of 3500-3650 cm-1 and an alcohol monomer/phenol O-H functional group at a wavelength of 3590-3650 cm-1.

Pelatihan dan Percontohan Pemanfaatan Limbah Kulit Nanas menjadi Energi Alternatif Bioetanol pada Masyarakat Kecamatan Ciapus, Bogor Kartika Fajarwati Hartono; Rini Setiati; Mukmin P. Tamsil; Djunaedi Djunaedi; Aqlyna Fattahanisa; MG. Sri Wahyuni; Adira Natasha Annisa
SENADA : Semangat Nasional Dalam Mengabdi Vol. 1 No. 3 (2021): SENADA: Semangat Nasional Dalam Mengabdi
Publisher : Politeknik Bina Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56881/senada.v1i3.70

Beberapa tahun terakhir ini, di Indonesia energi merupakan persoalan yang krusial secara nasional maupun internasional. Saat ini mulai terjadi kelangkaan BBM dan gas dengan meningkatnya permintaan dan keperluan akan bahan bakar fosil, sedangkan cadangan minyak dan gas bumi semakin menipis. Salah satu cara mengatasi kelangkaan energi, khususnya energi dari bahan bakar fossil adalah dengan mengembangkan energi alternatif yaitu Bioetanol. Selain permasalahan kelangkaan bahan bakar yang berasal dari fossil (BBM dan gas), di Indonesia juga sedang mengalami permasalahan sampah. Adanya penumpukan sampah dan permasalahan dalam pengolahannya, menyebabkan timbulnya polusi dan pencemaran sampai munculnya berbagai penyakit yang berasal dari sampah. Tujuan dari PKM ini adalah untuk membantu mengurangi permasalahan sampah dengan pemanfaatan sampah organik yang berasal limbah kulit nanas menjadi salah satu sumber energi alternatif, yaitu Bioetanol. Metode yang digunakan adalah percontohan dan pelatihan pembuatan limbah kulit nanas menjadi energi alternatif bioethanol. Secara sederhana limbah kulit nanas dapat dimanfaatkan sebagai makanan ternak dan bahan baku pembuatan etanol. Limbah kulit nanas yang dibiarkan tanpa penanganan dapat menimbulkan permasalahan pada lingkungan antara lain: dapat meningkatkan keasaman tanah. Bioethanol yang dihasilkan dari pengolahan limbah kulit nanas ini dapat dimanfaatkan oleh masyarakat sebagai bahan bakar pada motor mereka sehingga menghemat pembelian bensin. Jika dibina dengan baik, bioethanol ini dapat dijual sehingga menjadi penghasilan tambahan bagi masyarakat. Dengan mensosialisasikan pengetahuan dan teknologi dalam pemanfaatan limbah sampah organik (kulit nanas) maka masyarakat Ciapus dapat memperoleh bahan bakar hasil yang dapat langsung digunakan untuk motor mereka sehingga menghemat pembelian bensin sekaligus dapat menjadi penghasilan tambahan bagi masyarakat setempat.

Effect of Zinc Addition in Copper to Structure, Hardness, Corrosion, and Antibacterial Activity Lisa Samura; Mustamina Maulani; Cahaya Rosyidan; Kartika Fajarwati Hartono; Suryo Prakoso; Evi Ulina Margareta Situmorang; Daniel Edbert; Bambang Soegijono; Muhammad Yunan Hasbi; Ferry Budhi Susetyo
Journal of Applied Engineering and Technological Science (JAETS) Vol. 6 No. 1 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v6i1.6098

Brass (CuZn) is widely used today due to better mechanical, thermal, and chemical properties. The present research fabricated CuZn alloy by adding various Zn (6, 9, and 12 wt.%) to the Cu using gravity casting. Casts CuZn alloy by adding various Zn to the Cu to investigate optimum composition were resulting highest inhibited of bacterial activity. In addition, the structure, hardness, and electrochemical behavior of the alloy were also investigated using XRD, Vickers hardness, and potentiostat equipment. XRD confirmed that CuZn alloy has an alpha phase, and a FCC crystal structure. The rise of the Zn content in the alloy led to an increase in crystallite size, a decrease in the hardness and a shift to a more negative OCP potential at 1200 s measurement. Enhancing the Zn content to 9 wt.% in the alloy lead to decrease the corrosion rate. Moreover, 24-hour post-contact observation found that the sample places removed remained clear of bacteria. The Cu6Zn sample successfully inhibited the growth of Escherichia coli in the 3rd hour, while Staphylococcus aureus was 100 % reduced in the 7th hour. The Cu6Zn sample could be used as an alternative material for medical equipment in ambulances.

Co-Authors Adira Natasha Annisa Aditya Rachman Aqlyna Fattahanisa Bambang Soegijono Cahaya Rosyidan Daniel Edbert Dina Asmaul Chusniyah Djunaedi Djunaedi Evi Ulina Margareta Situmorang Fadliah, Fadliah Ferry Budhi Susetyo Hadi Purnomo Kris Pudyastuti Kurniawati, Riskaviana Lailatul Wastiyah M. Syarif Fadhlurrahman MG. Sri Wahyuni Muhammad Taufiq Fathaddin, Muhammad Taufiq Muhammad Taufiq Fatthadin Muhammad Yunan Hasbi Mukmin P. Tamsil Mustamina Maulani Reno Pratiwi Rini Setiati Samura, Lisa Suryo Prakoso, Suryo Trijana Kartoatmodjo Wiwik Dahani

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