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All Journal Jurnal Dinamis Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Voering Jurnal Rekayasa Material, Manufaktur & Energi CARADDE: Jurnal Pengabdian Kepada Masyarakat Infotekmesin Jurnal Dinamis Community Empowerment Jurnal Ilmiah Wahana Pendidikan Mechanical Engineering for Society and Industry Jurnal Pengabdian Masyarakat untuk Negeri (UN-PENMAS) Automotive Experiences Abdimas Dinamis Jurnal Medika: Medika
Helen Riupassa
Universitas Sains Dan Teknologi Jayapura, Jayapura, Indonesia
Religion Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

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Peran Minyak Kayu Putih Terhadap Karakteristik Pembakaran Minyak Kapuk Sebagai Bahan Bakar Alternatif Riupassa, Helen
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.15818

Abstract

The study conducted experimental investigations on the burning rate of crude kapuk oil droplets by incorporating bio-additives derived from eucalyptus oil. The bio-additive concentration of eucalyptus oil added to the kapuk oil was 100 ppm and 300 ppm, respectively. The droplet combustion method was chosen to maximize the contact area between the air and fuel, thereby enhancing the reactivity of fuel molecules.The findings revealed that the cineol compounds present in eucalyptus oil exhibit aromatic properties and possess an asymmetrical carbon chain geometry. This characteristic has the potential to facilitate effective collisions among fuel molecules, thereby promoting combustion. This was evident from the observed increase in the burning rate. Furthermore, the observations indicated that the highest burning rate was achieved when both bio-additives were 300 ppm.These results highlight the positive impact of incorporating eucalyptus oil as a bio-additive in crude kapuk oil. The aromatic nature and unique geometric structure of cineol compounds contribute to the fuel's increased reactivity and enhanced combustion performance. By utilizing bio-additives, such as eucalyptus oil, at an optimal concentration, it is possible to further improve kapuk oil's burning characteristics and overall performance as a biofuel.These findings provide valuable insights into the development of more efficient and sustainable alternative energy sources. By understanding the molecular aspects and effects of bio-additives, researchers can continue to explore and optimize the utilization of biofuels, such as crude kapuk oil, for a greener and more environmentally friendly energy future.
Study Eksperimental Karakteristik Penyalaan Minyak Kelapa Sebagai Bahan Bakar Alternatif Dengan Penambahan Bioaditif Minyak Kayu Putih Timang, Rison Sando; Riupassa, Helen; Nanlohy, Hendry Y.
Rekayasa Material, Manufaktur dan Energi Vol 7, No 2: Juli 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i2.18251

Abstract

The limited availability of diesel oil encourages efforts to find new energy sources as alternative diesel fuels. Biodiesel can be extracted from various agricultural products, for example, coconut oil. As a tropical country, Indonesia is a very effective and potential country as a coconut producer. Vegetable oil has a higher viscosity than diesel oil. Compose bio-oils with various fuels additive is the way to reduce viscosity values, among others, by combining nanocarbon and metal catalysts. This study goals to know the characteristics of burning coconut oil as an alternative fuel with the addition of eucalyptus oil; and how long the combustion process takes from the starting point to the end. The results showed that adding eucalyptus oil to coconut oil can reduce the weakening of the carbon chain and increase the combustion temperature. The combustion efficiency of this coconut oil mixture varies depending on the amount of eucalyptus oil added, resulting in faster fuel combustion and a more powerful explosion. The color of the fire is an essential factor in ensuring that this mixture can be used safely and efficiently.
Karakteristik Penyalaan Droplet Minyak Biji Bunga Matahari Dengan Penambahan Karbon Aktif Kulit Pinang Ulwan, Abdullah; Riupassa, Helen; Mini, Marthina; Suyatno, Suyatno
Rekayasa Material, Manufaktur dan Energi Vol 8, No 1: Januari 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i1.22248

Abstract

This study aims to reveal the role of biocatalysts based on activated biocarbon from areca nut shell waste in improving the ignition performance of sunflower seed oil droplets as an alternative fuel. Sunflower seed oil, which is rich in unsaturated fatty acids, has strong intermolecular binding forces that slow down its ignition. To overcome this, biocatalysts from activated areca nut shells were used. FTIR analysis showed an increase in the ability of fuel molecules to absorb heat, while TEM studies revealed that biocarbons have high porosity and uniform particle distribution, which supports combustion efficiency. Observations of temperature and droplet evolution using thermocouples and high-speed microscope cameras showed a significant increase in the ignition rate. The results indicate that this biocatalyst not only improves ignition efficiency but also utilizes organic waste, making it an environmentally friendly and sustainable fuel solution.
Karakteristik Penyalaan Droplet Minyak Kelapa Dengan Campuran Biokatalis Karbon Aktif Kulit Pinang Walintukan, Akbar Vicky V; Riupassa, Helen; Nanlohy, Hendry Yoshua
Rekayasa Material, Manufaktur dan Energi Vol 8, No 1: Januari 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i1.21756

Abstract

This study aims to reveal the combustion characteristics of coconut oil as an alternative fuel by adding active bio-carbon catalysts from areca nut skin. 1-3 ppm catalysts reduce viscosity, so the fuel quickly absorbs heat and ignites. This study uses the www droplet ignition method to increase the contact area between air and fuel so that the reactivity of fuel molecules increases. The results showed that adding areca nut skin-activated carbon catalysts improved fuel performance, whereas coconut oil fuel can absorb heat and release energy quickly. This was clarified from the results of the TGA test, where when compared with a mixture of 1 to 3 ppm, it was seen that the mix of coconut oil with a two ppm catalyst was the most effective because it had a high temperature with a stable heat flow. These results indicate that activated carbon from areca nut skin has excellent potential to be used as a biocatalyst for environmentally friendly and economical vegetable oil.
Enhancing clean water management skills for public health in Lake Sentani Andika Prasetya; Calvin R. Rumansara; Bambang Suhartawan; Suyatno Suyatno; Helen Riupassa; Marthina Mini; Hendry Y. Nanlohy
Community Empowerment Vol 9 No 4 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.11304

Abstract

Lake Sentani has an area of around 9,630 hectares and is situated at an altitude of 72 meters above sea level. Its water is consistently utilized by the residents of Yobeh Village for drinking, cooking, bathing, washing, and toileting. This activity directly impacts the cleanliness and quality of the lake water, consequently affecting public health. Observations have revealed that the community, especially children, suffer from negative impacts such as diarrhea and stomachaches. Hence, the objective of this community service activity is to enhance the understanding and skills of village communities in obtaining clean and hygienic water from Lake Sentani. The methods employed include socialization, training, and mentoring. The outcomes show that the community has developed a new mindset regarding the water potential of Lake Sentani and has acquired excellent skills in managing the lake water to ensure its cleanliness and healthiness.
Peran Nano Biokarbon Aktif Dari Kulit Pinang Terhadap Karakteristik Pembakaran Droplet Minyak Biji Bunga Matahari Harsanta, Bagus E.; Riupassa, Helen; Nanlohy, Hendry Y.
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2526

Abstract

Continuous exploitation of fossil fuels causes scarcity, so appropriate solutions and policies are needed. One of these solutions is to utilize vegetable oil, and one of them comes from sunflower seed oil, which contains 17% oleic fatty acid and around 73% linoleic. However, its high viscosity, making it difficult to burn, hampers its use as an alternative fuel. Therefore, efforts are made to reduce its viscosity. One of these efforts is to add a catalyst in the form of active nano bio carbons derived from areca nut skin. Droplet combustion is chosen to increase the contact area between air and fuel so that the reactivity of fuel molecules increases. The study's results showed that the quality of fuel produced from a mixture of sunflower seed oil and active nano biocarbon from areca nut skin was improved. It was found that a concentration of 1 ppm was the best compared to other concentrations (2 and 3 ppm). It can be seen that it was able to reduce the viscosity of sunflower seed oil to 11.16 cSt, reduce the flash point at 138°C, and can increase the droplet combustion rate by around 2.05 seconds.
Pemberdayaan Masyarakat Kampung Skouw Yambe Melalui Pemanfaatan Limbah Kayu Menjadi Briket Sebagai Bahan Bakar Alternatif Nanlohy, Hendry Y.; Haurissa, Jusuf; Riupassa, Helen; Marianingsih, Susi; Iriyanto, Santje Magdalena; Usman, Syamsudin
JURNAL ABDIMAS DINAMIS : JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 3 No 2 Juni (2022): Abdimas Dinamis
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat USTJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58839/jad.v3i2.1012

Abstract

The existence of wood waste along the coast of Skouw Yambe is an abundant natural potential that has not been utilized properly. This Community Service activity aims to utilize the waste into briquettes as an alternative fuel to replace kerosene. The method used in this activity is the socialization, practice and training of making briquettes starting from collecting and drying raw materials, making wood charcoal, refining wood charcoal, mixing wood charcoal with adhesives, printing briquettes, drying briquettes, and cooking trials using briquettes. The results obtained from this Community Service Program are that the people of Skouw Yambe village can have excellent skills and abilities in producing household-scale briquettes from wood waste.
BERSAMA MELAWAN BERITA HOAX VAKSIN COVID-19 DI DISTRIK ABEPURA KOTA JAYAPURA Haurissa, Jusuf; Usman, Syamsudin; Nanlohy, Hendry Y.; Riupassa, Helen; Nainggolan, Hotnida
JURNAL ABDIMAS DINAMIS : JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 3 No 1 Januari (2022): Abdimas Dinamis
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat USTJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58839/jad.v3i1.1032

Abstract

Pandemi covid 19 membuat banyak orang menderita disemua sektor kehidupan mulai dari fisik yang menjadikan masyarakat tidak bisa bergerak bebas karena masyarakat lebih banyak berdiam diri di rumah saja. Karena psikis mereka juga lelah dan lemah sehingga dalam menerima informasi tentang pandemi covid 19 dan menyebar tanpa disaring terlebih dahulu yang masuk di tengah masyarakat. Kesadaran hukum, minat pendidikan masyarakat, dan kemampuan berpikir kritis dari kalangan muda hingga lansia terus menurun. Orang-orang melanggar aturan dan menyebarkan berita yang tidak benar alias Hoax. Berdasarkan masalah tersebut, tim PKM-USTJ bertujuan untuk melakukan pengabdian di distrik Abepura dengan mengajak masyarakat untuk bisa membuat strategi melawan Hoax di masa pandemi dengan optimalisasi kesadaran masayarakat dan kemampuan berpikir kritis melalui literasi media untuk masyarakat distrik abepura. Beberapa tahapan dilakukan mulai dari sosialisasi lewat pamphlet anti-Hoax, pemasangan baliho anti Hoax dan pembuatan video anti-Hoax. Tim PKM berupaya keras dalam mengoptimalkan potensi distrik dan masyarakat untuk melawan Hoax dimassa pandemi. Dengan adanya program ini paling tidak Tim PKM-USTJ dapat membantu pemerintah untuk melawan Hoax atau berita bohong yang bertebaran khususnya berita mengenai Covid-19.
PELATIHAN DAN PEMBUATAN BRIKET BERBAHAN DASAR LIMBAH KAYU GELONDONGAN DIKAMPUNG SKOUW SAE KOTA JAYAPURA Haurissa, Jusuf; Nainggolan, Hotnida; Riupassa, Helen; Iriyanto, Santje M; Nanlohy, Hendry Y; Usman, Syamsudin
JURNAL ABDIMAS DINAMIS : JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 4 No 1 Januari (2023): Abdimas Dinamis
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat USTJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58839/jad.v4i1.1169

Abstract

Pengabdian masyarakat yang dilakukan oleh Tim PKM Universitas Sains dan Teknologi Jayapura (USTJ) di Kampung Skouw Sae adalah melatih membuat briket dari limbah kayu gelondongan. Limbah kayu gelondongan sebagai bahan dasar pembuatan briket, banyak terdapat disepanjang dipantai Skow Sae dan mencemari lingkungan disekitar pantai. Limbah-limbah kayu gelondongan sangat berguna apabila dapat diolah oleh masyarakat skouw sae menjadi briket penganti bahan bakar minyak tanah. Selain itu, tujuan Tim PKM adalah untuk membantu masyarakat, mengurangi masalah penumpukan limbah sekaligus mengubahnya menjadi sesuatu yang bernilai. Metode pelaksanaan program pengabdian pada masyarakat dalam bentuk sosialisasi pelatihan dan pendampingan melalui penyampaian materi dan pelatihan secara langsung dengan masyarakat kampung Skouw Sae melalui tatap muka dan pembimbingan. Hasil dari pelaksanaan pengabdian masyarakat, adalah masyarakat dapat membuat briket dengan memanfaatkan limbah dari pesisir pantai. Hasil cetakan briket dari pelatihan sudah dapat digunakan untuk memasak. Harapan masyarakat kedepannya untuk dijadikan sebuah penghasilan atau usaha briket.
Peran Nano Biokarbon Aktif Dari Kulit Pinang Terhadap Karakteristik Pembakaran Droplet Minyak Biji Bunga Matahari Harsanta, Bagus E.; Riupassa, Helen; Nanlohy, Hendry Y.
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2526

Abstract

Continuous exploitation of fossil fuels causes scarcity, so appropriate solutions and policies are needed. One of these solutions is to utilize vegetable oil, and one of them comes from sunflower seed oil, which contains 17% oleic fatty acid and around 73% linoleic. However, its high viscosity, making it difficult to burn, hampers its use as an alternative fuel. Therefore, efforts are made to reduce its viscosity. One of these efforts is to add a catalyst in the form of active nano bio carbons derived from areca nut skin. Droplet combustion is chosen to increase the contact area between air and fuel so that the reactivity of fuel molecules increases. The study's results showed that the quality of fuel produced from a mixture of sunflower seed oil and active nano biocarbon from areca nut skin was improved. It was found that a concentration of 1 ppm was the best compared to other concentrations (2 and 3 ppm). It can be seen that it was able to reduce the viscosity of sunflower seed oil to 11.16 cSt, reduce the flash point at 138°C, and can increase the droplet combustion rate by around 2.05 seconds.
Co-Authors Alfons, Alfred Benjamin Andi Sanata Andika Prasetya Bambang Suhartawan Basri Katjo Bonefasius Bao Bosta Sihombing Calvin R. Rumansara Fairuddin, Fairuddin Gasperzs, Rolling Harsanta, Bagus E. Haurissa, Jusuf Hendry Y. Nanlohy Herman Hi. Tjolleng Taba Herman Tjolleng Taba Hotnida Nainggolan I Made Rasta Ikhwansyah Isranuri Iriyanto, Santje M Iriyanto, Santje Magdalena Jimirson E. Way Kenny H Marianingsih, susi Marthina Mini Marthina Mini Marthina Mini Marthina Mini Marthina Mini, Marthina Martina Mini Masaki Yamaguchi Masaki Yamaguchi Mebin Samuel Panithasan Muhammad Akhlis Rizza Muji Setiyo Nevada. J. M. Nanulaitta Peliman Ndibau Rachmat Subagyo Raehan, Muhammad Alif Rafif D. N. Andika Ribut Jayanto Rolling Gasperzs Rolling S. Gaspersz Rosalin Theophilia Tayane Sapari Sapari Satworo Adiwidodo Selcuk Sarikoc Susi Marianingsih Suyatno Suyatno Suyatno Suyatno Suyatno Syamsudin Usman T. Ahri Bahriun Takuya Tomidokoro THOMAS KBAREK Thomas Kbarek Timang, Rison Sando Trismawati Trismawati Trismawati Trismawati Trismawati, Trismawati Tugiman Tugiman Ulwan, Abdullah Usman, Syamsudin Walintukan, Akbar Vicky V Yamaguchi, Masaki