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All Journal Teknika Journal of Geoscience, Engineering, Environment, and Technology JTM-ITI (Jurnal Teknik Mesin ITI) JURNAL PENDIDIKAN TAMBUSAI Journal of Education Technology Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Teknik Mesin Cakram Jurnal Teknik Mesin Indonesia Jurnal Pendidikan dan Konseling Majamecha TRIDARMA: Pengabdian Kepada Masyarakat (PkM) JURNAL ILMIAH SIMANTEK Bubungan Tinggi: Jurnal Pengabdian Masyarakat Sprocket : Journal of Mechanical Engineering Jurnal Darma Agung BERNAS: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian kepada Masyarakat Nusantara Bioscientist : Jurnal Ilmiah Biologi Nusantara Hasana Journal Jurnal Pengabdian kepada Masyarakat ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Jurnal Abdimas Bina Bangsa Abdi Jurnal Publikasi EDUCTUM: Journal Research Indonesian Research Journal on Education Innovative: Journal Of Social Science Research Social Engagement: Jurnal Pengabdian Kepada Masyarakat Abdimas Mandalika Journal of Engineering Science and Technology Management AutoMech : Jurnal Teknik Mesin Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Community Empowerment Jurnal Ilmiah Nusantara International Journal of Technology and Education Research Jurnal Penelitian Teknik dan Pengelolaan Sumberdaya Perairan Prosiding Seminar Nasional Ilmu Komputer, Sosial Sains, Teknik Dan Multi-disiplin Ilmu Jurnal Pengabdian Masyarakat Indonesia Journal of Global Research Publications
SIANTURI, TAMBOS AUGUST
Program Studi Teknik Mesin Universitas HKBP Nommensen Pematangsiantar
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Analysis of the Effect of Sieve Size on the Efficiency and Quality of Milling Results Dried Shrimp Juanda Purba; Jhon Supriadi Purba; Tambos August Sianturi
Prosiding Seminar Nasional Ilmu Komputer, Sosial Sains, Teknik dan Multi-Disiplin Ilmu Vol. 1 (2025)
Publisher : Raskha Media Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64803/ikosstemi.v1.42

Abstract

This study was conducted to investigate the operation of the dried shrimp grinding machine. This study was also undertaken to determine the differences in grinding results using three different sieve sizes. There are three sieve sizes used, namely, 5 mm, 7mm, and 9mm. This study was conducted to determine the results of grinding dried shrimp from fine to coarse, as the demand for ground shrimp in the market varies. Therefore, the researcher conducted this study with the aim of meeting market demand.
PROSES KERJA STERILIZER PABRIK KELAPA SAWIT PTPN IV DOLOK SINUMBAH kevin pratama hasudungan, kevin pratama hasudungan; Tampubolon, Kevin Pratama; Sianturi, Tambos August
Jurnal Penelitian Teknik Dan Sumberdaya Perairan Vol. 1 No. 2 (2025): Jurnal Penelitian Teknik dan Sumber Daya Perairan (Desember)
Publisher : Fakultas Teknik dan Pengelolaan Sumberdaya Perairan Universitas HKBP Nommensen Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59925/52m8ds08

Abstract

The sterilization process is a very important initial stage in palm oil processing because it directly affects the quality and yield of the resulting oil. The sterilizer functions to stop the activity of the lipase enzyme, facilitate the release of loose fruit from the bunch, and soften the fruit tissue before further processing. This Field Work Practice (PKL) activity aims to study the palm oil processing process at the sterilizer station, including the working principles, operational parameters, and the effect of sterilization on the quality of Fresh Fruit Bunches (FFB). The methods used in writing this journal are direct observation in the field, interviews with operators, and literature studies related to the palm oil sterilization process. The results of the observations indicate that the sterilization process is carried out using pressurized steam at a certain temperature and time to achieve optimal conditions. Control of pressure, temperature, and boiling time is crucial to the success of the sterilization process. An optimal sterilization process can reduce the level of free fatty acids (FFA) and increase the efficiency of subsequent processing. Thus, the sterilizer station plays a crucial role in maintaining the quality and quantity of the palm oil produced.
Analysis of the Effect of Boiling Time on Oil Yield Palm oil at PTPN IV Mayang Plantation Luat Surya Napitupulu; Tambos August Sianturi
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i1.371

Abstract

The boiling process of fresh fruit bunches (FFB) at PTPN IV Kebun Mayang is carried out using a semi-automatic system using a horizontal steam pressure sterilizer. This study analyzed three boiling time programs, namely 85 minutes, 90 minutes, and 95 minutes, with a triple peak pressure system. The purpose of the study was to determine the most optimal boiling time to obtain the potential palm oil yield. The method used was a direct experiment with quantitative and qualitative observations of the potential of fresh fruit bunches (FFB) and oil yield. The results showed that the average RMS of the 85-minute experiment was 16.98%, the average RMS of the 90-minute experiment was 23.76%, and the average RMS of the 95-minute experiment was 19.44%. In conclusion, the 90-minute boiling time appears to provide the most balanced results. Boiling that is too short results in low yields while boiling that exceeds the optimum limit also tends to reduce the quality or amount of extractable yield.
The Effect of Freezing Time on the Melting Time of Ice Blocks at PT Siantar Ice Factory Calvin Klein Sitanggang; Tambos August Sianturi
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i1.376

Abstract

The background of this study is based on the needs of the ice block industry for products with higher resistance to melting in order to maintain distribution quality and improve operational efficiency. This research aims to analyze the effect of freezing duration on the melting time of ice blocks and to determine the most optimal freezing time among 24 hours, 27 hours, and 30 hours. The research methodology employs a mixed-method approach through direct observation conducted during Field Work Practice (PKL). Quantitative data were obtained from measurements of the melting time of ice blocks produced under three different freezing durations with three repetitions, while qualitative data were collected from observations of the freezing process and the physical condition of the ice. The freezing process was carried out at a temperature range of −10°C to −15°C using a brine-based cooling system. The results indicate that freezing for 24 hours produces an average melting time of 8.5 hours, freezing for 27 hours results in an average melting time of 10.2 hours, and freezing for 30 hours results in an average melting time of 12.5 hours. These findings demonstrate that longer freezing durations lead to increased melting time of ice blocks. Freezing for 30 hours provides the longest melting time and is considered the most optimal in enhancing resistance to melting.
Akselerasi Pemulihan Ekonomi Masyarakat Pasca Bencana Melalui Inovasi Pakan Ikan Mandiri Berbasis Buah Campnosperma auriculatum Desa Lancat Sianipar, Herna Febrianty; Sianturi, Tambos; Siahaan, Theresia Monika; Sijabat, Apriani; Sinaga, Christa Voni Roulina; Simanjuntak, Bernard
Abdimas Mandalika Vol 5, No 3 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/am.v5i3.38527

Abstract

Abstract: The natural disaster in Lancat Village caused significant damage to fisheries infrastructure and crippled the economy of local fish farmers due to the high cost of commercial feed. This community service program aims to accelerate economic recovery through innovative, independent fish feed based on the use of Campnosperma auriculatum (Terentang) fruit as an alternative raw material. The implementation method consisted of four main stages: outreach and data collection on damaged facilities, technical training on feed formulation, intensive production assistance, and economic performance evaluation. The results of the activity showed an increase in the community's technical skills in feed nutritional formulation from 10% to 80%. The use of this innovative feed significantly reduced variable production costs by 40% and increased farmer profit margins per harvest cycle. The success of this program not only restored post-disaster production capacity but also created a sustainable, circular economic model based on local resources. The transformation of the community from feed consumers to independent producers is a key factor in strengthening the economic resilience of Lancat Village against market fluctuations and future disaster risks.Abstrak: Bencana alam di Desa Lancat telah menyebabkan kerusakan infrastruktur perikanan yang signifikan dan melumpuhkan ekonomi pembudidaya ikan lokal akibat tingginya biaya pakan komersial. Kegiatan pengabdian masyarakat ini bertujuan untuk mengakselerasi pemulihan ekonomi melalui inovasi pakan ikan mandiri berbasis pemanfaatan buah Campnosperma auriculatum (Terentang) sebagai bahan baku alternatif. Metode pelaksanaan dilakukan melalui empat tahapan utama: sosialisasi dan pendataan kerusakan sarana, pelatihan teknis formulasi pakan, pendampingan intensif produksi, serta evaluasi performa ekonomi. Hasil kegiatan menunjukkan peningkatan keterampilan teknis masyarakat dalam formulasi nutrisi pakan dari 10% menjadi 80%. Penggunaan pakan inovasi ini secara nyata mampu menekan biaya variabel produksi sebesar 40% dan meningkatkan margin keuntungan pembudidaya per siklus panen. Keberhasilan program ini tidak hanya memulihkan kapasitas produksi pasca bencana, tetapi juga menciptakan model ekonomi sirkular berbasis sumber daya lokal yang berkelanjutan. Transformasi masyarakat dari konsumen pakan menjadi produsen mandiri menjadi kunci utama dalam memperkuat ketahanan ekonomi Desa Lancat terhadap fluktuasi pasar dan risiko bencana di masa depan.
Performance analysis of solar collectors with varying glass thickness for water heaters Panjaitan, Abryan Termedia; Sianturi, Tambos August; Siahaan, Azarya NJ
EDUCTUM: Journal Research Vol. 5 No. 2 (2026): Eductum: Journal Research
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/ejr.v5i2.1605

Abstract

The increasing global energy demand encourages the use of renewable energy, especially solar energy which has great potential in tropical regions such as Indonesia. This study aims to analyze the performance of flat plate solar collectors with variations in local glass thickness (3 mm and 5 mm) for household water heating systems. The method used is a field experiment with measurements of water temperature parameters (?T), heat transfer rate (Qout), absorbed heat energy (Qin), and solar radiation energy (Qs) in the time range of 11:00–14:00 WIB. The results show that 3 mm glass produces higher outlet water temperatures and heat transfer rates due to better radiation transmission capabilities, especially at low intensities. However, 5 mm glass has a higher and more stable thermal efficiency, with a maximum value reaching 71%, due to better insulation capabilities in suppressing heat loss. Overall, glass thickness has a significant effect on solar collector performance. Therefore, local glass with a thickness of 5 mm is recommended to increase the efficiency of solar energy-based water heating systems that are economical and environmentally friendly.
ANALISIS EFEKTIVITAS KINERJA COOLING TOWER TERHADAP PERBEDAAN FAN BLADE DAN SUDUT KEMIRINGAN BLADE PADA AREA EFFLUENT Benni galius simangunsong; Tambos August Sianturi
Jurnal Penelitian Teknik Dan Sumberdaya Perairan Vol. 2 No. 1 (2026): Jurnal Penelitian Teknik dan Sumber Daya Perairan (Juni)
Publisher : Fakultas Teknik dan Pengelolaan Sumberdaya Perairan Universitas HKBP Nommensen Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59925/a88cqw90

Abstract

Cooling tower banyak digunakan di industri sebagai sistem pendinginan air dengan memanfaatkan kontak langsung antara air dan udara. Proses pendinginan terjadi melalui pelepasan panas, terutama panas laten akibat penguapan air, yang sangat menentukan performansi cooling tower. Kinerja alat dipengaruhi oleh distribusi aliran air dan udara, sehingga diperlukan pemeliharaan untuk menjaga distribusi tetap merata. Penelitian ini bertujuan untuk menganalisis perbandingan performansi cooling tower berdasarkan variasi sudut filler dan fan blade. Data diperoleh melalui pengukuran laju aliran air, temperatur air masuk dan keluar, kecepatan udara, serta temperatur bola basah lingkungan. Analisis dilakukan menggunakan pendekatan volume kendali untuk menentukan besarnya panas yang dilepaskan. Variasi sudut filler yang diuji adalah 90°, 100°, dan 110°. Hasil penelitian menunjukkan bahwa sudut filler mempengaruhi kinerja cooling tower. Nilai efektivitas terendah diperoleh pada sudut tertentu, sedangkan pada sudut 110° menunjukkan kinerja terbaik dengan efektivitas sebesar 58,36%. Hal ini disebabkan oleh meningkatnya aliran udara dari bawah ke atas sehingga proses pendinginan menjadi lebih optimal. Namun, peningkatan aliran udara juga menyebabkan kenaikan kehilangan air (drift loss) sebesar 120 m³/jam dan kebutuhan make-up water sebesar 212,616 m³/jam. Dengan demikian, variasi sudut filler dan fan blade berpengaruh signifikan terhadap performansi cooling tower, baik dari sisi efektivitas pendinginan maupun konsumsi air.
The Fresh Fruit Bunch Boiling Process at the Sterlizer Station in Palm Oil Processing at PT. Sumber Bumi Sawit Jadi Jaya Yabes Cristian Nainggolan; Tambos August Sianturi
Journal Of Global Research Publications Vol. 3 No. 2 (2026): JGRP - July
Publisher : PT. Padang Tekno Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/jgrp.v3i2.2026.63

Abstract

This study aims to analyze the Fresh Fruit Bunch Boiling Process at the Sterlizer Station in Palm Oil Processing at PT. Sumber Bumi Sawit Jadi Jaya. In writing this report, data collection is very important. The data collection methods used by the author are as follows: Documents or References Data collection through written and electronic documents from PT. Sumber Bumi Sawit Jadi Jaya. Field Observation. The method is carried out by direct observation in the company environment. Literature Review. In addition to field observations, data is also taken from several literatures related to this report. The location of the field work practice was held at PT Sumber Bumi Sawit Jadi Jaya which is located on Jalan Besar Mandoge-Kisaran. And the field work practice lasted for 1 month. Starting from September 1st – October 1st, 2023. The conclusions obtained from the results of the practical work are as follows: PT. Sumber Bumi Sawit Jadi Jaya is a factory that processes fresh oil palm fruit bunches into CPO and palm kernel. The processing capacity at PT. Sumber Bumi Sawit Jadi Jaya is 30 Tons of FFB / Hour The organizational structure at PT. Sumber Bumi Sawit Jadi Jaya is a functional organizational structure. The results of processing the percentage of cardiovascular load obtained that all boiler workers needed repairs, and the workload category of the four workers was influenced by age factors
PEMANFAATAN LIMBAH ORGANIK SEBAGI BAHAN BAKU PEMBUATAN ECOENZIM GUNA MEMPERBAIKI KUALITAS AIR SUNGAI DI DESA SIGUMPAR Seti Damanik; Juan Sihombing; Liston Simamora; Tambos Sianturi; Herna Febrianty Sianipar
Journal of Community Empowerment Vol 5, No 2 (2026): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jce.v5i2.39327

Abstract

ABSTRAKPengelolaan limbah organik rumah tangga yang kurang optimal masih menjadi tantangan lingkungan di wilayah pedesaan, khususnya di Desa Sigumpar. Akumulasi sisa buah dan sayuran tanpa pengolahan berisiko mencemari lingkungan dan menurunkan kualitas perairan sungai setempat. Program pengabdian ini bertujuan untuk meningkatkan keterampilan warga Desa Sigumpar dalam mentransformasi limbah organik menjadi ecoenzim melalui teknik fermentasi, sekaligus sebagai upaya pemulihan kualitas air sungai. Metode pelaksanaan dilakukan dengan melibatkan 10 peserta masyarakat Desa Sigumpar dengan lama waktu pelaksanaan selama dua minggu. Tahapan  kegiatan dimulai dari tahap koordinasi, tahap pelaksana kegiatan, tahap aplikasi dan implementasi lapangan, dan tahap monitoring dan evalusi. Hasil kegiatan menunjukkan masyarakat berhasil memproduksi sekitar 40 liter cairan ecoenzim dari limbah rumah tangga dan 90% masyarakat mengerti cara membuat ecoenzim. Evaluasi program dilakukan secara deskriptif dengan memantau proses produksi, antusiasme peserta, serta kondisi awal aliran sungai sebagai sasaran aplikasi produk.Kata kunci: Limbah Organik; Ecoenzim; Kualitas Sungai. ABSTRACTSuboptimal management of household organic waste remains an environmental challenge in rural areas, particularly in Sigumpar Village. The accumulation of unprocessed fruit and vegetable waste poses a risk of environmental pollution and degrading the quality of local river water. This community service program aims to educate and train the community in transforming organic waste into eco-enzymes through fermentation techniques, while simultaneously restoring river water quality. The implementation method was carried out through direct practical mentoring involving 10 community participants. The activity results showed that the community successfully produced approximately 40 liters of eco-enzyme liquid from household waste, and 90% of the community understood how to make eco-enzymes. The program evaluation was conducted descriptively by monitoring the production process, participant enthusiasm, and the initial condition of the river flow as the target application of the product. Keywords: Organic Waste; Ecoenzymes; River Quality.
Analysis Of Differences In Onion Drying Systems With Steam Fan Collectors And Ovens Ayub Januari Sidauruk; Win Fronstein Naibaho; Tambos August Sianturi; Jhon Sufriadi Purba; Shalom Hilton Siahaan
International Journal of Technology and Education Research Vol. 4 No. 02 (2026): International Journal of Technology and Education Research (IJETER)
Publisher : International journal of technology and education research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63922/ijeter.v4i02.4857

Abstract

This study aims to analyze the differences System Drying Shallots With Collector Fan Steam and Oven. Based on results study drying onion red using a drying oven with method displacement hot convection and radiation, then can concluded as following Process drying cause occurrence decline heavy material in a way gradually from 9 kg to 4.4 kg. Weight loss heavy happen Because water content in material evaporate during the heating process. Transfer hot convection happen consequence flow air heat directly in the oven about surface material. The size displacement hot convection increase along increase oven temperature. Transfer hot radiation happen through radiance hot from element oven heater towards materials. Radiant heat help speed up the evaporation process water content in onions red. Calculation results show that the more tall temperature drying, then displacement the heat that occurs the more big so that the drying process ongoing more fast. Use of drying oven proven effective in lower moisture content of the material and speed up the drying process onion red
Co-Authors Amdan Hendrico Aritonang Andi Sitompul, Hery Anwar Hotris Simatupang Apriani Sijabat Ayub Januari Sidauruk Benni galius simangunsong Calvin Klein Sitanggang Christophe Jestius Sipayung Efrata Tarigan Elfrido Lorensius Lumbangaol Epanro Natanael Simanjuntak Faisal Siagian Frans Willis Siregar Gestian Janperdi Sianipar Girsang, Marensius Goldbert Harmuda Duva Sinaga gultom, Boini Pardamean Gunawan Simanjuntak Handoco, Ewin Herna Febrianty Sianipar Herna Febrianty Sianipar Herna Febrianty Sianipar Iwan Apriando Simanjuntak Jan Hary Siburian Jefri Ando Siadari Jepry Simanjuntak Jhon Sufriadi Purba Jhon Supriadi Purba Jhon Supriadi Purba Jhon Supriadi Purba Joko Barita Sianipar Jose Mikael Saragih Juan Sihombing Juanda Purba kevin pratama hasudungan, kevin pratama hasudungan Liston Simamora Luat Surya Napitupulu MANALU, ERVIN Manurung, Marito Yanti Mardame Sinaga Michael Hardianto Munthe Moses Novianus Purba Mungkap Mangapul Siahaan Naibaho, Winfrontstein Naibaho, Winsfronstein Nofyando Simalango Oges Ivendo Saragih ompusunggu, ungkap Panjaitan, Abryan Termedia Pastron Simanjorang Purba, Angga Purba, Jhon Purba, Jhon Sufriadi Purba, Moses Novianus Purba, Rudiarman Putra Samuel Putra Samuel Manihuruk Rahul Depri Simanjuntak Rando Wijaya Sidauruk Regi Chandela Situmorang Rudi Adolt Sihombing Ryan Eberson Garingging Sahat Sahat Sahat Sitompul Saloom Hilton Siahaan Saragi, Jandri Fan HT Saragih, Oges Saragih, Oges Ivendo Saragih Seti Damanik Shalom Hilton Siahaan Siahaan, Azarya NJ Siahaan, Saloom Hilton Siahaan, Theresia Monika Siburian, Daniel Tony Edyt SIBURIAN, JAN HARY SIBURIAN, JAN HARY I. SIBURIAN Siburian, Niko SIHOMBING, ANDREAS VENSEN Sihombing, Fiktor Simanjuntak, Bernard simanjuntak, Rahul Simanullang, Ady Frenly Sinaga, Christa Voni Roulina Sinaga, Mardame Pangihutan Sindak Hutauruk Sipayung, Fitri Maria Goretti Siti Imroatul Maslikah Situmorang, Regi Sri Devi Marchelina Siahaan Surya Seftian Sidabalok Tampubolon, Kevin Pratama Tarigan, Efrata Togar Naibaho Welmar Olfan Barat, Welmar Olfan Win Fronstein Naibaho Win Fronstein Naibaho Winfonstein Naibaho Winfronstein Naibaho Yabes Cristian Nainggolan