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All Journal Jurnal Keteknikan Pertanian IPTEK Journal of Proceedings Series Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Rekayasa Mesin JURNAL INTEGRASI PROSES Wikrama Parahita : Jurnal Pengabdian Masyarakat Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Prosiding Seminar Nasional Teknik Mesin Jurnal Mekanik Terapan Mitra Akademia: Jurnal Pengabdian Masyarakat PROFICIO: Jurnal Pengabdian Masyarakat Jurnal PkM (Pengabdian kepada Masyarakat) JURNAL POLI-TEKNOLOGI Jurnal PADE: Pengabdian & Edukasi Jurnal Teknik Terapan (J-TETA) Jurnal Polimesin Recent in Engineering Science and Technology
Tatun Hayatun Nufus
Politeknik Negeri Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Veterinary Other

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Journal : Jurnal Polimesin

 1 
Computational analysis of magnetohydrodynamic effects on biodiesel flow rate Tatun Hayatun Nufus; Candra Damis Widiawati; Ahmad Indra Siswantara; Gun Gun Ramdlan Gunadi; Dianta Mustofa Kamal; Asep Apriana; Dela siska; Bayu Prasetio; Irfan Hermansyah Saputra
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3292

Abstract

The purpose of this research  is to determine the velocity characteristics of fluid (fuel) flow in a pipe surrounded by a minimal magnetic (electromagnetic) field strength by using computational fluid dynamics simulations. For a more detailed discussion, Magnetohydrodynamics (MHD) theory is used, which is a branch of science that studies fluid flow that can conduct electric current due to the influence of a magnetic (electromagnet) field. The fuel used is B0, B10, B20 and B30. The magnitude of the electromagnetic field used is 0.15 Tesla. the result is that the flow rate of B0 fuel has decreased by 0.623%. B10 fell to 0.41%. The B20 was down 0.618% and the B30 was down 0.648%. Thus the magnetic field strength of 0.15 Tesla is able to change the speed of the fuel flow even if only slightly. This information is needed as a basis for the development that the magnetic field is able to change the value of the flow velocity, this will provide information related to improving the quality of combustion and fuel savings in the future.
Study on the impact of natural graphite amount and dispersion on the electrical performance of PET/graphite composites Pramono, Agus Edy; Dewi, Anissa Puspa; Nufus, Tatun Hayatun; Indayaningsih, Nanik
Jurnal Polimesin Vol 23, No 3 (2025): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i3.6872

Abstract

Polymer composites have experienced rapid development in recent decades due to their ability to integrate mechanical, thermal, and electrical properties tailored for specific applications. One of the major challenges in polymer development is improving electrical conductivity, as most polymers are inherently insulating. To address this, various conductive fillers such as carbon black, graphite, carbon nanotubes, and graphene have been utilized. This study investigates the effect of natural graphite loading on the electrical conductivity, microstructure, and porosity of virgin Polyethylene Terephthalate (PET) composites. Composites containing 10%, 20%, and 30% graphite by weight were fabricated using the hot compaction method. Morphological analysis via Scanning Electron Microscopy (SEM) revealed that higher graphite content enhances filler connectivity, with the formation of conductive pathways beginning at 20% and a continuous network forming at 30%, despite some agglomeration and weak interfacial bonding. Density measurements and porosity analysis indicated that increasing graphite content leads to greater porosity, with the 30% composite reaching 19.68%. Electrical conductivity increased significantly with increasing graphite loading, exhibiting a transition from insulating to conductive behavior. The percolation threshold was identified at approximately 13.2 wt%, with conductivity rising from 0.00347 S/m at 10 wt% to 6.97 S/m at 30 wt%, consistent with classical percolation theory. These findings demonstrate that natural graphite is an effective conductive filler for PET-based composites and that its content must be optimized to balance conductivity with structural integrity.
Co-Authors A.A. Ketut Agung Cahyawan W Abadi, Cecep Slamet Achmad Subakri Adhi, Pribadi Mumpuni Agus Sukandi Ahmad Indra Siswantara Ahmad Maksum Ainun Nidhar, Ainun Anisa Ramadhani Apriansyah, Muhammad Hijriy Ardhan, Dhea Tisane Ariek Sulistyowati Arif Dermawan Armansyah Halomoan Tambunan Arnanda, Rachmat Asep Apriana Asep Apriana Asep Yana Bayu Prasetio Bel, Belyamin Belyamin Belyamin Candra Damis Widiawati Candra Damis Widiawati Dela siska Devi Handaya Dewi, Anissa Puspa Dewi, Renita Dianta Mustofa Kamal Dwi Budi Santoso Elfi Nur Rohmah Emir Ridwan, Emir Firmanto, Apri Fitri Wijayanti Garjati, Vina Nanda Gatot, Suyitno Gun Gun R Gunadi Gunadi, Gun Gun Ramdlan Gunandi, Gun Gun Ramdlan Irfan Hermansyah Saputra Irwan, Rifqi Isnanda Nuriskasari Iwan Susanto Juna, Haidir Kadarusna, Isman Kamal, Dianta Mustofa Kisty, Jasmine Zahra Lianda, Handri Tirta Muhammad Todaro Muhammad Yusuf Bagus Rasyiidin Muhammad, Ghiffari Taqiyuddin Nanik Indayaningsih Ngadirin, M. Noor Hidayati Noor Hidayati Nurma Putri, Melisa Dian Paulus Sukusno Pramono, Agus Edy Prasetya , Sonki Pratama, Vicky Surya Rachmatika, Nabila Radite Praeko Agus Setiawan Rahman, Haolia Rahmat A Setiawan Rahmat Subarkah Rahmat Subarkah Ramadhan, Mochammad Tendi Noer RATNA KHOIRUNNISA Ridlwan, Hasvienda Mohammad Rizkia , Vika Saidatuningtyas, Ifa Salsabiila, Firanda Permata Saputro, Tri Sugiantoro Giman Marto Siregar, Cherly Zahara Siregar, Rolan Sitorus, Andre Halomoan Taufik Maulana, Taufik Todaro, Muhammad Try Laksono Prasetyo Vika Rizkia Wawan Hermawan Widiawaty , Candra Damis Wisnu Tri Nur Kahfi Yuliana, Arifia Eka