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All Journal International Journal of Renewable Energy Development Mechatronics, Electrical Power, and Vehicular Technology Jurnal Teknik Mesin Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Teknologi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Sinergi Prosiding Semnastek Indonesian Journal of Science and Technology Jurnal Penjaminan Mutu Journal of Community Services and Engagement Jurnal Elemen Teknomekanik Community Empowerment Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Teknik Mesin Asean Journal of Science and Engineering (AJSE) Mechanical Engineering for Society and Industry Automotive Experiences Urecol Journal. Part D: Applied Sciences Innovation in Health for Society Jurnal Penjaminan Mutu International Journal of Renewable Energy Development Advance Sustainable Science, Engineering and Technology (ASSET)
Muji Setiyo
Universitas Muhammadiyah Magelang, Magelang, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Journal : Sinergi

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Preparation and mechanical characterization of natural polymer composite material obtained from fox tail palm seeds Kolakoti, Aditya; Geeri, Satish; Rochman, Muhammad Latifur; Setiyo, Muji
SINERGI Vol 28, No 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.3.007

Abstract

This experimental investigation reveals the preparation of natural composite material from foxtail palm tree seeds. The fruits from the foxtail palm tree are used for the extraction of oil, and the by-product of the extraction process is freely dumped. This study attempts to utilize the waste by-product of foxtail palm tree fruit as a valuable natural composite material. The fabrication was done using the hand lay-up method for the proposed reinforcement (4% and 8%) of filler materials. The obtained composite materials are subjected to significant mechanical characterization of tensile behaviour, flexural property, and hardness. In addition, the morphological study was also carried out by the scanning electron microscope (SEM). The results show that, as the reinforcement percentages of filler material increase, the mechanical properties are improved. This may be due to the uniform dispersion of natural fibres in the polymer. The tensile strength was improved by 22.43% and 29.08% for 4% and 8% filler reinforcement. Similarly, the stiffness property was improved by 9.32% for 4% reinforcement and 18.68% for 8% reinforcement when compared with neat composite. The SEM images reveal the failure analysis, bonding strength and fibre pull-out in the composites. Finally, the foxtail fruit fibre shows promise as a reinforcing agent in composite materials, improving their mechanical properties and making them suitable for various applications requiring strength, stiffness, and resistance to deformation.
Heat transfer and pressure characteristics of Tri Ethylene Glycol/water and Ethylene Glycol/water mixtures in copper pipe heated flow systems Sukarman, Sukarman; Khoirudin, Khoirudin; Amir, Amir; Fahrizin, Nazar; Azizah, Renata Lintang; Azizah, Azizah; Setiyo, Muji; Azmi, W. H.
SINERGI Vol 29, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.3.001

Abstract

Enhancing heat transfer efficiency and pressure regulation in copper pipe flow systems is crucial for advancing modern cooling and heating technologies, particularly given the widespread use of copper piping in these applications. This study investigates the thermal and hydraulic performance of ethylene glycol/water (EG/water) and tri ethylene glycol/water (TEG/water) mixtures as working fluids in copper pipe systems. A series of controlled experiments was carried out on a dedicated copper pipe test section to evaluate the effects of varying flow rates on the heat transfer coefficient and pressure drop for each fluid mixture. The results indicate that the TEG/water mixture yielded a ~2.0% increase in heat transfer coefficient and a ~1.0% reduction in pressure drop compared to the EG/water mixture, with a corresponding increase in Reynolds number of approximately 37.0%. The reduction in pressure drop is primarily attributed to the lower viscosity of the TEG/water fluid. These findings provide valuable comparative insights into the thermophysical behaviour of both glycol-based mixtures and offer practical guidance for optimizing the selection of thermal fluids in large-scale cooling and heating systems that utilize copper piping.
Co-Authors Abdul Wahid Jamin Aditya Kolakoti Aditya Kolakoti Aditya Kolakoti Agung Setyo Pambudi Agus Setiawan Ahmad Irfan Al Husaeni, Dwi Fitria Al-Obaidi, Abdulkareem Sh. Mahdi Alper Calam Ambati Vijay Kumar Aminuyati Amir Amir Andi Widiyanto Andrizal Andrizal Andy Efendi Anindito, Dhimas Cahyo Anwar Anwar Anwar Anwar Arif Hidayat Asep Bayu Dani Nandiyanto Asnil Asnil Atanasius Priharyoto Bayuseno Azizah Azizah Azizah, Renata Lintang Azmi, W. H. Azuan Ahmad Bagas Arif Prasetyo Baginda Pangidoan Tanjung Bagiyo Condro P Bagiyo Condro Purnomo BAGYO CONDRO P Bambang Sudarmanta Battal Doğan Bobbili Prasadarao Budi Waluyo Budi Waluyo Capilayan, Mycel A. Chrisna Bagus Edhita Praja Cionita, Tezara Damar Setyo Prakasa Darmawan Rois David Prayogo Derviş Erol Dhandapani, Sathish Dhasa Ikrar Setyanansyach Dhasa Ikrar Setyanansyach Dhimas Cahyo Anindito Dori Yuvenda Dwi Ahmad R Dwi Ahmad Rizani Dwi Restianto Dwi Sudarno Putra Eko Muh Widodo Fahrizin, Nazar Fardinansyah, Akmal Putra Fidelis Ibiang Abam Fitriyana, Deni Fajar Fungky Dyan Pertiwi Fungky Dyan Pertiwi Gaga Putra Setiawan Geeri, Satish Gozali, Muchamad Gunawan Refiadi Hadi, Agung Efriyo Hary Abdul Hakim Hasan Köten Hedi Purnomo Helen Riupassa Hendry Y. Nanlohy Heni Lutfiyati, Heni Heni Setyowati Esti Rahayu Husaeni, Dwi Novia Al Ilham Habibi Ilham Habibi, Ilham Imran, Al Ichlas Indra Chandra Setiawan Istiqomah, Alfiana Fitri Jamaludin Jamaludin Jamiluddin, Jamiluddin Junid, Ramli Karmiadji, Djoko Wahyu Katakam Satyanarayana Khoirudin Khoirudin, Khoirudin Khoirul Fa’i Kivevele, Thomas Kolakoti, Aditya Koto, Rahmat Desman Krismadinata Krismadinata Kusumadewi, Tri Vicca Laksono Trisnantoro Lalank Samudra Mukti Hidayat Leo Utoro Lilik Budiyarto Luki Fahmi Luthfi, Akbar Lutifyati, Heni Macmanus Chinenye Ndukwu Madihah Mohd Saudi Marcin Noga Marliyati Marliyati, Marliyati Martias Martias Mat Rejab, Mohd. Ruzaimi Mehmet Akçay Metta Raghu Moehamad Aman Mohamad Agus Ramly Muchamad Gozali Muhammad Imron Rosyidi Muhammad Iqbal Al-Fikri Muhammad Kunta Biddinika Muhammad Latifur Rochman Muhammad Luthfi Muhammad Mauludin Kharim Muhammad Rizal I Muhammad Rizal Ibrahim Murugan, Veeramanikandan Nanang Apriandi Nasmi Herlina Sari Nor Azwadi Che Sidik Noto Widodo Noto Widodo Noto Widodo Nursafitri, Murti Ayu Nursaputro, Septiantar Tebe Obaidi, Abdulkareem Sh. Mahdi Al Oki Muraza Oktavi Barkah Lukmana Oliver Ibor Inah Olusegun David Samuel Olusegun David Samuel Onyishi Donatus Uchechukwu Peeie, Mohamad Heerwan Bin Pirouzfar, Vahid Prasasti Bayu Aji Pramono Prasetyo, Bagas Arif Prima Nofan Ryastama Purnomo, Hedi Purnomo, Tuessi Ari Purwanto, Wawan Putra, Randi Purnama Ragadhita, Risti Raghu Metta Ragil Widyorini Rahadian Zainul Rahmawan, Muhammad Andi Raja, Thirunavukkarasu Ramli Junid Ray Adhan Brieghtera Refaldy Pristiwantoro Remon Lapisa Remy Uche Rifky Ismail Rifqi Nugroho Riyan Adhy Pratama Riyan Tri Aditya Pamungkas Rizani, Dwi Ahmad Rochman, Muhamad Latifur Roni Muhammad Susanto Rosyidi, Muhammad Imron Rozanna Dewi Rusdjijati, Retno Saifudin Saifudin Saifudin Saifudin Salih Özer Sarikoc, Selcuk Setiawan, Indra Chandra Setyo Widiantoro Shyu, Jin Cherng Siregar, Januar Parlaungan Sofyan Kurniawan Sri Rizki Putri Primandari Sukarman Sukarman Sulistyo Sulistyo Sumarno Adi Subrata Sunaryo Sunaryo Sunaryo Suroto Munahar Susanto, Roni Muhammad Suyitno Suyitno Thirunavukkarasu Raja Thirunavukkarasu Raja Thomas Kivevele Tuessi Ari Purnomo Tymofiiv, Volodymyr Vahid Pirouzfar Wagino Wahyu Danu Romadlon Wahyu Sulistiyo Widha Bagus Fahriansyah Yun Arifatul Fatimah Yusuf Dewantoro Herlambang Zainal Arifin Zulfikar Bagus Pambuko