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Lilipaly, Eka Rahmat Mahayani Anthonio Putera
Politeknik Negeri Ambon
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Micro Hydropower Potential Assessment for Sustainable Tourism Electrification: A Case Study of Taeno Waterfall, Ambon Lilipaly, Eka Rahmat Mahayani Anthonio Putera; Wattimena, Sefnath J; Sarwuna, Sefnath J Etwan; Tupamahu, Cendy S E; Nara, Obednego Dominggus; Latumaerissa, Hendrik Simon; Aprilyanto Khouw; Rumalatu, Gilbert A; Hatuwe, Azmain N
International Journal Multidisciplinary Science Vol. 5 No. 1 (2026): February: International Journal Multidisciplinary Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijml.v5i1.2637

Abstract

This study evaluates the technical and economic feasibility of micro hydropower development at Taeno Waterfall, Ambon, Indonesia, to support sustainable tourism electrification. Hydrological assessment was conducted using 10-year rainfall data (2014–2023) combined with the National Rural Electric Cooperative Association (NRECA) method to estimate streamflow in the absence of long-term discharge measurements. The results indicate an average annual rainfall of approximately 3619.92 mm and an estimated average discharge of 0.70 m³/s. Flow duration curve analysis produced dependable flows of Q50 = 0.63 m³/s, Q80 = 0.35 m³/s, and Q90 = 0.28 m³/s, confirming adequate water availability for year-round micro hydropower operation. Hydraulic analysis showed a gross head of 24 m with a net head of 22.44 m after accounting for friction and minor losses. Using a design discharge of 0.35 m³/s and an overall efficiency of 75%, the estimated electrical power output is approximately 58 kW, classified as micro hydropower. A crossflow turbine was identified as the most suitable technology due to its compatibility with medium-head and moderate-flow conditions, operational flexibility, and cost effectiveness. Estimated electricity demand for tourism facilities is approximately 30 kW peak load with annual consumption of 66 MWh, indicating that the proposed system can fully meet demand with surplus energy for future expansion. Economic analysis using the Indonesian electricity tariff of 0.086 USD/kWh yields an annual benefit of approximately 19,278 USD and a payback period of about 12 years. The findings demonstrate that Taeno Waterfall possesses strong potential for sustainable renewable energy implementation to support tourism development and local energy resilience.
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%.
EFISIENSI WATER MISTING SYSTEM DALAM MEMPERTAHANKAN KUALITAS SAYUR Lilipaly, Eka Rahmat Mahayani Anthonio Putera; Pattikayhatu, Erwin Bravor; Effendy, Edison
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.v13i1.1240

Abstract

Sayur yang biasanya dijual pada pasar-pasar swalayan dipajang  di  dalam lemari-lemari  pendingin atau diletakkan pada rak yang berada pada ruangan yang dingin dan memiliki sistem pendingin,  sedangkan di pasar-pasar tradisional sayur ini  hanya dihamparkan di atas meja-meja penjualan, sebagian lagi ditumpuk pada wadah-wadah yang bukan merupakan tempat penyimpanan sayur dan  tidak dilengkapi dengan alat pendingin. Penelitian sebelumnya menunjukkan bahwa kehilangan berat sayur dengan menggunakan sistem water misting dapat dipertahankan sebanyak 6.25% dari berat semula, dengan efisiensi alat pendingin water misting sebesar 61.47%. Penelitian ini diharapkan bisa mendapatkan metode baru terutama sistem kontrol yang dapat diaplikasikan  sesuai dengan kebutuhan manusia khususnya untuk pedagang sayur sehingga mempermudah pekerjaan dengan tidak lagi menyiram atau memercikkan air di atas sayur secara manual tetapi secara otomatis. Hasil penelitian menunjukkan bahwa efisiensi terbaik diperoleh pada waktu penyemprotan 7 menit dengan istirahat selama 2 menit sebesar 65.6%, lebih baik 4% dari penelitian sebelumnya.
Co-Authors Alfa Musa Imanuel Efruan Alfa Musa Imanuel Efruan Amarduan, Riona Magdalena Aprilyanto Khouw Arun setiawan Away, Hyzkia Berthy Pelasula DOMINGGUS MALLE Edison Effendi Edison Effendi Edison Effendy Effendy, Edison Eirene G. Fransina Eirene G. Fransina Eka Adhitya Dharmawan Eka Adhitya Dharmawan Hatuwe, Azmain N Hatuwe, Azmain Noor Hellna Tehubijuluw Ivon Telussa Ivonne Telussa Kartikasari, Pinky Karyani, M.Said Latuihamallo, Threbelin Anacovic Lawdrian Latumaerissa, Hendrik Simon Leslie S Loppies Loppies, Leslie S Maahury, Mirella Fonda Mahubessy, Nurul Fadhila Marasabessy, Salman Nara, Obednego Dominggus Nevada. J. M. Nanulaitta Pattikayhatu, Erwin Bravor Pelasula, Berthy Penaonde , Astri Riany Pormes, Ludwina Rumalatu, Gilbert A SAMUEL M. TARIBUKA Sarwuna, Sefnath J Etwan setiawan, Arun Tanasale , Matheis F. J. D. P Telussa, Ivon Tetelepta, Noce Novi Tupamahu, Cendy S E Umayyah, Nissaeryn Zahro Wattimena, Sefnath J