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All Journal Jurnal Sains dan Teknologi JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Science and Technology Indonesia JURNAL SIMETRIK ARIKA Multicience Jurnal Teknik Kimia dan Lingkungan Journal Mechanical Engineering
Lilipaly, Eka Rahmat Mahayani Anthonio Putera
Politeknik Negeri Ambon
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Theoretical Design of Offgrid Renewable Energy System Pv For Centrifugal Pump Electricity Supply Umayyah, Nissaeryn Zahro; Hatuwe, Azmain Noor; Lilipaly, Eka R. M. A. P.
Journal Mechanical Engineering Vol. 2 No. 3 (2024): Desember
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i3.2892

Abstract

ABSTRACTThe off-grid PV system is an alternative power generator as a replacement for the conventional system which is currently still used in production operations at petroleum companies in Indonesia. The application of this offgrid PV system can support oil production operations for companies whose production areas are in remote areas or are still not reached by the PLN network and can reduce the consumption of fossil fuels to run generators so as to reduce greenhouse gas emissions and as a step to utilize the potential of Indonesia's sunlight. This research was carried out using a theoretical study method, namely by processing data obtained from the field using equations obtained from supporting references. This research shows that to meet the electricity needs of a centrifugal pump that operates 5 times a day with one operation of 7.5 kW for 1 hour and the total daily need is multiplied by 2 to calculate cloudy days, 75 kwh of energy is needed a day. The results of the research show that 40 solar panels with a capacity of 450 Wp each installed in series are needed and 80 LIFEP04 batteries made in battery banks totaling 20 banks with 4 batteries each, and 4 5000W inverters so that they can produce 75kWh of power and meet daily load requirements. Key words: offgrid PV system, Centrifugal Pump, parallel series
ANALISIS KETEBALAN PELAT DAN PENENTUAN SISA UMUR PAKAI PADA TANGKI 2 DI PLTMG AMBON PEAKER Mahubessy, Nurul Fadhila; Effendy, Edison; Lilipaly, Eka R. M. A. P.
Journal Mechanical Engineering Vol. 2 No. 3 (2024): Desember
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i3.2896

Abstract

ABSTRACTThe Ambon Peaker Gas Power Plant (PLTMG Ambon Peaker) is an electrical infrastructure facility powered by gas turbines, located in Waai Village, Central Maluku Regency, Maluku Province. The fuel oil storage tank used by the Ambon Peaker since 2019 is situated directly near the coastline, making it very vulnerable to damage, particularly from corrosion on its metal plate walls. Therefore, maintenance is necessary to prevent any unwanted workplace accidents. This tank stores fuel oil. The author conducted calculations for minimum thickness and corrosion rate to determine the remaining lifespan of the tank. The results indicate that the critical point is located at course 1, with a remaining lifespan of 121 years. This can be influenced by various factors, such as environmental conditions and fluid characteristics. Tank maintenance also needs to be considered to ensure the tank's reliability, allowing it to operate longer and preventing the need for corrective maintenance. Keywords: storage tank, corrosion rate, wall thickness, remaining life.
PERANCANGAN TEORITIS PLTS TERPUSAT SEBAGAI ALTERNATIF SUPLAI LISTRIK KEBUTUHAN SUCKER ROD PUMP Kartikasari, Pinky; Hatuwe, Azmain Noor; Lilipaly, Eka R. M. A. P.
Journal Mechanical Engineering Vol. 2 No. 2 (2024): Agustus
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i2.2912

Abstract

Design of PLTS is an effort to enhance the reliability of electrical power, electrification ratio, and utilization of renewable energy in the oil and gas industry. The availability of electricity is extremely urgent to meet the production process requirements, particularly for the motor-driven SRP pumping system. Currently, the industry relies on PLN and genset electricity for daily production activities. However, the design of a centralized PLTS system is expected to meet the SRP electricity needs in the oil and gas industry. The power grid in the oil and gas industry is obtained from PLN and genset. Therefore, the need for a power plant is evident. Related to the research previously discussed with the title “Design of Centralized PLTS as an Alternative Electricity Supply for Sucker Rod Pump” (Pinky Kartikasari, 2024), this study aims to determine the capacity of panels and batteries required for the development of a centralized PLTS in the oil and gas industry. The method used in this research is quantitative because it involves calculating the capacity of solar panels, daily energy needs, and numerical system analysis. The results show that the total energy requirement for SRP electricity supply is 264 kWh/day. The required capacity of panels is 106 kWp, with a total of 200 monocrystalline panels each with a capacity of 550 Wp. Additionally, there are 128 batteries with a capacity of 24V 200Ah. The inverter used is the PV1800 ECO Series 6.200W type, with 20 units in total. Keywords: PLTS (Solar Power Plant), SRP (Sucker Rod Pump), Oil and Gas Industry
ANALISIS LAJU KOROSI DAN SISA UMUR PAKAI PADA TANGKI TIMBUN BAHAN BAKAR DI PLTD HARUKU Marasabessy, Salman; Karyani, M.Said; Lilipaly, Eka R. M. A. P.
Journal Mechanical Engineering Vol. 2 No. 2 (2024): Agustus
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i2.2917

Abstract

Corrosion resistance is the most important criterion in determining both the service life (remaining life) and operational reliability of equipment in the oil and gas industry. So it is very important to monitor the performance of every equipment in this industry. As with storage tanks, during long periods of operation and use, performance will likely decrease or could be said to experience thinning, thereby posing a danger to the thickness and remaining life of the ultrasonic thickness measuring instrument. differences in steel thickness data from the beginning and the thickness carried out by researchers. The data collected is also data that determines the minimum value for steel thickness in order to calculate the useful life of the media that will be examined by tanks that carry out measurements and maintenance using API 653 standards. Take measurements at several points 1. From the results of the analysis of the 100KL Tank located at PLTD HARUKU Using the UTG-90 Ultrasonic Thickness Gauge tool for plate thickness in August 2024, the results were that for Course 1 3.3, Course 2 3.4, Course 3 4.1, and Course 4 4.0 and the remaining tank life for each -Course 1, Course 2, Course 3 and Course 4 respectively are 11.26 years, 11.86 years, 32 years, 27.8 years1. The 100KL tank needs to undergo a Remaining Life Assessment (RLA) in 2028 and a regular tank inspection routine must be carried out to prevent leaks in the tank at least once every 4 years. Keywords : Tangki, corrosion, remaining life, tank thickness
Potensi Pigmen Fotosintesis dari Diatom Laut Ambon Navicula sp. TAD sebagai Bahan Tabir Surya Telussa, Ivon; Tanasale , Matheis F. J. D. P; Eka. R. M. A. P. Lilipaly; Penaonde , Astri Riany
JST (Jurnal Sains dan Teknologi) Vol. 14 No. 1 (2025): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v14i1.64813

Abstract

Navicula sp. TAD adalah mikrorganisme fotosintetik yang memiliki pigmen fotosintesis yang didominasi senyawa karotenoid.  Karotenoid merupakan pigmen fotoproteksi yang melindungi mikroalga dari radiasi ultraviolet. Karakteristik ini memungkinkan beberapa mikroalga menjadi toleran terhadap sinar UV. Karakteristik pigmen ini dapat dimanfaatkan sebagai sumber bahan krim tabir surya yang dapat melindungi kulit dari paparan sinar matahari dengan intensitas cahaya yang tinggi. Pada Penelitian ini dilakukan  kultivasi Navicula sp. TAD, ekstraksi pigmen fotosintesis, uji antiokdisan, pembuatan tabir surya dan penentuan nilai Sun Protection Factor (SPF). Hasil penelitian menunjukkan bahwa Navicula sp. TAD mengandung karotenoid dan klorofil berturut-turut sebesar 0,745±0,096 dan 2,407±0,501 µg mL-1. Uji antioksidan dari pigmen fotosintesis menunjukkan nilai IC50 ekatrak kasar, β-karoten, santofil, klorofil a dan klorofil c berturut-turut sebesar 25,578; 15,164; 21,959; 20,001 dan 117,785. Krim tabir surya memiliki Nilai SPF tertinggi dengan menggunakan bahan klorofil a sebesar 3,787. Pigmen fotosintesis dari Navicula sp. TAD berpotensi sebagai bahan tabir surya.
Enhancing Dye-Sensitized Solar Cell Efficiency Using Photosynthetic Pigments from Navicula sp. TAD Telussa, Ivonne; Maahury, Mirella Fonda; Lilipaly, Eka Rahmat Mahayani Anthonia Putera; Latuihamallo, Threbelin Anacovic Lawdrian
Jurnal Teknik Kimia dan Lingkungan Vol. 9 No. 2 (2025): October 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v9i2.7179

Abstract

Microalgae Navicula sp. TAD is a microscopic plant that has the potential to serve as an alternative source of pigments, requiring relatively short cultivation time, making it suitable for use as a sensitizer in dye-sensitized solar cells. This research aimed to isolate, characterize, and identify the photosynthetic pigments of Navicula sp. TAD, and subsequently test its photoelectric capability as a sensitizer material in solar cells. The study involved cultivating Navicula sp. TAD cells to obtain biomass, isolating pigments from dry biomass, purifying pigments using column chromatography techniques, characterizing pigments by scanning visible light absorption patterns, and fabricating solar cells with TiO2 paste, followed by testing the photoelectric capabilities of the solar cells. From the research, pigments such as β-carotene, chlorophyll a, xanthophyll, and chlorophyll c were obtained, with chlorophyll a and carotenoid contents of 29.9698 μg/mL and 18.4255 μg/mL, respectively. Solar cells sensitized with photosynthetic pigments showed the best photoelectric performance with crude pigment extract at a concentration of 30×10³ ppm, yielding Short-circuit current density (ISC) 1.93×10⁻⁵ A;  open-circuit voltage (VOC) 0.0465 V; fill factor (FF).58; and efficiency (η) 8.33×10⁻² %. Meanwhile, variations in pigment concentration of chlorophyll and xanthophyll at a ratio of 0:100 yielded ISC 9.96×10⁻⁵ A; VOC 0.1004 V; FF 0.45; and η 7.24×10⁻¹ %.
Utilization of Diatom Frustule Waste from Navicula sp. TAD as Photoelectrode Material for Enhancing the Efficiency of Dye-Sensitized Solar Cells (DSSC) Telussa, Ivonne; Tehubijuluw, Hellna; Lilipaly, Eka Rahmat Mahayani Anthonia Putera; Malle, Dominggus; Amarduan, Riona Magdalena
Science and Technology Indonesia Vol. 11 No. 2 (2026): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.2.632-642

Abstract

Navicula sp. TAD is a microalga with silica-based cell walls, offering potential to improve photon interaction in dye-sensitized solar cells (DSSCs). This study combined Navicula sp. TAD frustules with TiO2 to fabricate DSSC working electrodes. The objectives were to isolate and characterize the frustules, optimize the TiO2–frustule ratio, and evaluate photoelectric performance. The workflow consisted of cultivating Navicula sp., isolating pigments and frustules, fabricating solar cells with varied electrode compositions, and performing photoelectric testing under a solar simulator. Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microscope (SEM) analysis confirmed that the frustules possess nanoporous surfaces and exhibit Si–O–Si and Si–OH functional groups. Electrodes incorporating TiO2–frustule blends showed compact pore networks, along with additional functional groups. Performance screening across compositions identified an optimal TiO2–frustule ratio of 40:60, which delivered an efficiency of 10.51%, a short-circuit current density of 0.673 A, an open-circuit voltage of 301.8 mV, and a fill factor of 0.32. These findings indicate that frustule-enabled light management and surface chemistry can jointly enhance dye loading and charge collection in DSSC photoanodes relative to TiO2 alone.
ANALISIS LAJU PENDINGINAN BAHAN MAKANAN DALAM COOLBOX UNTUK PEMASARAN DENGAN WATER MISTING SYSTEM DI KOTA AMBON Loppies, Leslie S; Lilipaly, Eka Rahmat Mahayani Anthonio Putera
JURNAL SIMETRIK Vol 11 No 1 (2021): Jurnal Simetrik (Sipil, Mesin, Listrik)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v11i1.620

Abstract

Food preservation can be done by using cooling system, however, the preservation used in Ambon traditional market is still the old ways of pouring cold water on the materials. The method caused many types of pollution such as smell, dirty puddle, and the damage of the road. By using a more effective and efficient cooling system, the food material is expected to be more clean, the market will be better and less damaged road. This will result in a happier customer and seller. The water misting system can keep the materials temperature at 10-15⁰C. The materials use is kale and fish. These materials can last all day and looked fresh. This system did not create pollution, dirty water puddle, and also consumed less water.
PENGGUNAAN FAN TYPE HOLOGRAM DENGAN SOLAR CELL SEBAGAI PILIHAN ALTERNATIF BILLBOARD DI KOTA AMBON Lilipaly, Eka Rahmat Mahayani Anthonio Putera; Dharmawan, Eka Adhitya
JURNAL SIMETRIK Vol 11 No 1 (2021): Jurnal Simetrik (Sipil, Mesin, Listrik)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v11i1.621

Abstract

This research aimed to investigate the use of fan type hologram, that is considered to be a new technology, to replace conventional billboard. Billboard usage consumes plenty of energy and is not flexible. Fan type hologram is expected to reduce the electricity use and becomes more attractive to the general society. Prototype of the system build with solar cell as the source of energy, and battery as the storage. The energy from the sun is also measured to confirmed the energy supply is enough.The experiment showed that the initial cost for billboard is less expensive than the fan type hologram. On the other hand, the use of electricity of fan type hologram is much less than the billboard. It is also does not pay the monthly electricity bill, while conventional billboard needs to pay around Rp.252.000,- per month. 91.2% respondents agree for the replacement of the conventional billboard with fan type hologram.
EFISIENSI SOLAR DRYER UNTUK PENGAWETAN IKAN DAN PISANG Dharmawan, Eka Adhitya; Lilipaly, Eka Rahmat Mahayani Anthonio Putera
JURNAL SIMETRIK Vol 13 No 1 (2023): Jurnal Simetrik (Sipil, Mesin, Listrik)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v13i1.1238

Abstract

Ikan dan pisang merupakan makanan yang banyak dikonsumsi oleh masyarakat Indonesia. Kapasitas produksi yang tinggi pada bahan makanan dan buah tersebut sering menyebabkan banyak yang terbuang. Terbuangnya bahan makanan ini dapat diatasi dengan metode pengawetan. Salah satu metode pengawetan yang dapat dilakukan adalah dengan cara pengeringan. Salah satu metode pengeringan yang efektif yaitu dengan menggunakan alat Solar Dryer. Penggunaan Solar Dryer berfungsi lebih baik dibandingkan dengan pengeringan langsung di bawah sinar matahari. Penelitian ini dimulai dengan pembuatan alat pengering, dan dilanjutkan dengan ujicoba proses pengeringan bagi pisang dan ikan. Ujicoba dilaksanakan selama (1) satu hari bagi masing-masing bahan, dan data diambil tiap 30 menit. Hasil penelitian menunjukkan efisiensi untuk pengeringan pisang adalah sebesar 12.2%, sementara untuk pengeringan ikan adalah sebesar 8.98%.
Co-Authors Alfa Musa Imanuel Efruan Alfa Musa Imanuel Efruan Amarduan, Riona Magdalena Arun setiawan Away, Hyzkia Berthy Pelasula DOMINGGUS MALLE Edison Effendi Edison Effendy Effendy, Edison Eirene G. Fransina Eirene G. Fransina Eka Adhitya Dharmawan Eka Adhitya Dharmawan Hatuwe, Azmain Noor Hellna Tehubijuluw Ivon Telussa Ivonne Telussa Kartikasari, Pinky Karyani, M.Said Latuihamallo, Threbelin Anacovic Lawdrian Loppies, Leslie S Maahury, Mirella Fonda Mahubessy, Nurul Fadhila Marasabessy, Salman Nevada. J. M. Nanulaitta Pattikayhatu, Erwin Bravor Penaonde , Astri Riany SAMUEL M. TARIBUKA Tanasale , Matheis F. J. D. P Telussa, Ivon Umayyah, Nissaeryn Zahro