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All Journal e-Dinamis Jurnal Teknik Kimia USU Jurnal Dinamis IPTEK The Journal for Technology and Science Rekayasa Mesin Journal of Engineering and Technological Sciences Jurnal Riset Industri Jurnal Litbang Industri Jurnal Hasil Penelitian Industri Turbo : Jurnal Program Studi Teknik Mesin Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat JOURNAL OF SCIENCE AND APPLIED ENGINEERING Journal of Saintech Transfer Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS Sprocket : Journal of Mechanical Engineering JURNAL FLYWHEEL Dinamis Jurnal Teknik Kimia USU Jurnal Litbang Industri International Journal of Architecture and Urbanism Wahana IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Cylinder : Jurnal Ilmiah Teknik Mesin
Himsar Ambarita
Fakultas Teknik, Program Studi Magister Teknik Mesin, Universitas Sumatera Utara
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Utilization of Hands Free Wash Basin as Covid-19 Prevention in Public Health Center Hutabarat, Nauas Domu Marihot Romauli; Ambarita, Himsar; Sinamo, Karina Nola
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.337 KB) | DOI: 10.32734/abdimastalenta.v5i2.4554

Abstract

Simalingkar Public Health Service is located in one of one of the 5 districts in Medan with the Red zone status. At the Partner location, it was found that they using hand wash basin with ordinary hand operated tap and it was not optimal to preventing the spread of the Covid-19 virus since some surface of plastic or steel in public health service cannot absorb droplet and preserving the active virus, it could become the transmission vehicle of the virus from one person to the next. Because that area with high touch intensity can pose a risk of transmission of the Covid-19 virus, the solution that will be offered by designing and making an automatic tap hand wash basin by using feet pedals so that there is no need hand to touch the water tap The purpose of this activity is expected that Partners can preventing the spread of Covid-19 by using hands free wash basin on daily health service activities.
Simulasi Laju Penguapan Air Laut Secara Natural Menggunakan ANSYS Fluent Sihombing, Hendrik V; Ambarita, Himsar; Siagian, Horas S
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 6 No 1 (2024): Edisi Agustus 2024
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v6i1.1602

Abstract

terakhir ini. Hal ini penting dikarenakan dasar dalam perhitungan konsumsi energi pada proses penguapan air maupun umumnya kehilangan massa cairan di suatu reservoir. Pada penelitian ini dilakukan simulasi secara transient, yang bertujuan untuk mengetahui laju penguapan air laut yang terjadi pada sebuah reservoir atau bak penampung, dengan asumsi radiasi matahari yang dianggap telah diserap oleh bak sebagai fluks panas. Simulasi yang digunakan menggunakan metode CFD (computational Fluid Dynamics) multifasa (Volume of Fluid) dengan perangkat lunak Ansys Fluent. Kondisi batas yang digunakan pada simulasi ini dengan kondisi nilai radiasi sebesar 600 W/m2. Pada hasil simulasi dapat diperolah nilai laju perpindahan massa dan laju perpindahan panas, dengan nilai rata-rata laju selama 1 jam, untuk tanpa kipas 2,78671×10-6 kg/s dan 2049,18 J/s.
PERFORMANSI MESIN DIESEL MENGGUNAKAN BIODIESEL DARI CAMPURAN BIJI KARET-MINYAK PIROLISIS LIMBAH PLASTIK-MINYAK SOLAR Sitorus, Tulus Burhanuddin; Tambunan , Bisrul Hapis; Sihombing , Hendrik Voice; Ambarita, Himsar
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1765

Abstract

This research examines the performance of a Diesel engine that uses alternative fuel biodiesel from a mixture of rubber seeds with plastic waste pyrolysis and diesel oil. The plastic waste used is plastic bottle caps, which are processed by pyrolysis to obtain oil. One of the objectives of mixing biodiesel with plastic waste pyrolysis oil is to increase the calorific value of rubber seed biodiesel. The calorific value of rubber seed biodiesel is 39.95 kJ/kg, and the calorific value of plastic waste pyrolysis oil is 46.55 kJ/kg. Mixing rubber seed biodiesel with plastic waste pyrolysis oil increases the calorific value of rubber seed biodiesel by around 9.63%-13.63%. Experimental results show that there is a reduction in exhaust emissions when using biodiesel for opacity of 7.51-66.08%, CO 12.5-50%, HC 7.14-62.96% and an increase in CO2 emissions of around 3.08-84.62%. Tests using biodiesel were carried out without modifying the Diesel engine.
Studi Pengaruh Intensitas Radiasi Matahari Terhadap Kinerja Pompa Air Sentrifugal Tenaga Surya Hendrik V Sihombing; Himsar Ambarita; Wilson Sabastian Nababan; Siwan Ediamanta Peranginangin
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 8 No 1 (2026): Edisi Agustus 2026
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v8i1.2606

Abstract

Peningkatan kebutuhan air bersih seiring pertumbuhan penduduk menjadi tantangan utama, khususnya di daerah terpencil yang belum memiliki akses terhadap energi listrik. Pemanfaatan pompa air berbahan bakar fosil masih umum digunakan, namun berdampak negatif terhadap lingkungan. Oleh karena itu, diperlukan alternatif sumber energi yang ramah lingkungan dan berkelanjutan, salah satunya adalah energi surya. Penelitian ini bertujuan untuk menganalisis pengaruh intensitas radiasi matahari terhadap kinerja pompa air sentrifugal yang digerakkan secara langsung oleh panel fotovoltaik tanpa menggunakan sistem penyimpanan energi. Metode yang digunakan adalah eksperimen dengan pengambilan data selama 10 jam (08.00–18.00 WIB) pada interval 10 menit. Parameter yang diukur meliputi intensitas radiasi matahari, daya listrik yang dihasilkan, serta debit air yang dipompa. Hasil penelitian menunjukkan bahwa intensitas radiasi matahari memiliki hubungan berbanding lurus dengan daya keluaran panel surya dan kapasitas air yang dipompa. Intensitas radiasi maksimum tercatat sebesar 548 W/m², dengan daya minimum operasi pompa sekitar 231 watt. Sistem mampu menghasilkan total air sebesar 2430,8 liter per hari pada head 12 meter dengan rata-rata intensitas radiasi 250 W/m².Berdasarkan hasil tersebut, sistem pompa air tenaga surya langsung memiliki potensi yang baik sebagai solusi penyediaan air bersih yang ramah lingkungan, khususnya di daerah yang tidak memiliki akses listrik konvensional.
Experimental Study of Test Room Air Conditioning Using Solar Cold Energy Storage Himsar Ambarita; Albert Goldwin; Samar
International Journal of Architecture and Urbanism Vol. 10 No. 2 (2026): International Journal of Architecture and Urbanism
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijau.v10i2.27126

Abstract

In tropical regions, air-conditioning systems are among the main contributors to building energy consumption, and their energy demand may account for more than half of the total building load. Therefore, improving cooling efficiency has become an important issue in current building energy management. This study experimentally investigates a solar-powered room cooling system using cold energy storage to reduce the air temperature in a test room with dimensions of 4.8 m × 3.7 m × 3.3 m. The proposed cooling unit combines thermoelectric cooling technology with an actively operated phase change material as the cold storage medium. In this active configuration, heat exchange between the indoor air and the PCM is enhanced through forced convection supported by additional mechanical components. The experimental results show that the system was able to lower the indoor air temperature to 26.75 °C and achieve a relative humidity of 58% when the average outdoor temperature was 29.55 °C. The maximum coefficient of performance of the CES system reached 0.7, with an average value of 0.39 during the first day of operation.
Co-Authors ., Mahadi A Halim Nasution A. Halim Nasution A. Husein Siregar A. Husein Siregar A.A. Ketut Agung Cahyawan W Abdi Z. A. M. ABDI Z.A M Abdul H. Nasution Abdullah, Ilmi Adolf Ronny Adolf Ronny Adventus Silalahi Agorlif Efrata SIantur Ahmad H. Siregar Albert Goldwin Alfian Hamsi Amma Muliya R Amma Muliya R. Andianto P Andianto P. Andianto Pintoro Andika PP Tampubolon ANDRE J.D MANURUNG Andri M. Sijabat Ary Santony Ary Santony BONARDO S Bonardo S. Burhanuddin, Tulus Cakra M. A Cakra M. A. Calvin Candra Bachtiar, Candra Danner Silaen David M. Hutabarat Dian M Nasution Dian M. Nasution Dian M.Nasution Dian Morfi Nasution Dina, Sari Farah Dina, Sari Farah DUNAN GINTING Efrin Simbolon Eko Yohanes Setiawan Eko Yohanes Setyawan Farel H Napitupulu Farel H. Napitupulu Farel H. Napitupulu Farel H. Napitupulu Farel H. Napitupulu Farel H. Napitupulu Farel H. Naptupulu Farida Ariani Farrel H Napitupulu Farrel H Napitupulu Fauzi Fauzi Ferdinan A. Lubis Firman Siahaan Firman W. Siahaan Firman W. Siahaan frans frans Frenky Christian Nababan Frenky Christian Nababan George Mager George Mager Gery P. Hutapea Gery P. Hutapea Gultom, Syahril H.V Sihombing Halim Nasution Harry K. J. Munthe Harry K.J Munthe Haznam Putra Hendrik V Sihombing Herdy - Heri Firmansah Lumban Toruan Heru M Hutasoit Hotlan M. Nababan Hutabarat, Nauas Domu Marihot Romauli Hutauruk, Isra Ikhsan Sukri Iko M. Nadeak Joel P. Nababan Joel P. Nababan Jufrial Jufrizal Jufrizal Juwirianto Juwirianto Karina Nola Sinamo Kevin V Simbolon L, Zulkifli Lendeber Sinaga Libert Sijabat Libianko Sianturi M. Darwis Rambe M. Sabri M. Sabri M. Syahril Gultom M. Syahril Gultom M. Syahril Gultom M.Syahril Gultom Mahadi Mahadi Marhiras Sitanggang Michael Frans H. Hasibuan Muhammad Darwis Rambe Mulfi Hazwi Mulfi Hazwi Munawir Rosyadi Siregar N, Ricardo Napitupulu, Farel H. Napitupulu, Farrel H Nasution, Dian M. Nehemia Sembiring Nst, Fadly A. Kurniawan Nur, Taufiq Bin Oloan Purba P., Andianto Parulian Siagian Perangin-angin, Siwan E. Pramio G. S Pramio G. Sembiring Putra Setiawan Raidinata A. Sipayung Ricardo N Riky S. Situmorang Rio Arinedo Sembiring Ronal P Hutagalung Samar Samar Sari Farah Dina Sari Farah Dina Sari Farah Dina Shandy Marpaung Siagian, Horas S Sihombing , Hendrik Voice Sihombing, Hendrik V Sihombing, Hendrik V. Simon S. T. Gultom Simon S.T Gultom Siregar, Achmad Husein Siti Farah Dina Sitorus, Tulus B. Siwan Ediamanta Peranginangin Suprianto . Syahril Gultom Syahril Gultom Syalimono S Tambunan , Bisrul Hapis Tampubolon, Andika PP Tarigan, Dicky Adrian Sera Taufiq B N Taufiq B. N Taufiq B. N. Taufiq B. N. Taufiq B. Nur Tekad Sitepu Tekad Sitepu Terang U.H.S.G Manik Tri Arfandi Tri Arfandi Tugiman Tugiman . Tulus B Sitorus Tulus B Sitorus Tulus B sitorus Tulus B. Sitorus Tulus B. Sitorus Tulus B. Sitorus Tulus B. Sitorus Tulus B. Sitorus Tulus B. Sitorus Tulus Burhanuddin Sitorus Tyson M Tyson M. Wahyu Hamdani Waldemar Naibaho William William . William Ryan Wijaya Wilson Sabastian Nababan Yosua Maha Kurnia Surbakti Zakaria Bernando Zulkifli L Zulkifli Lubis Zulvia C.N Ginting