Article Per Year (5 Year)
p-Index From 2020 - 2025
5.514
P-Index
This Author published in this journals
All Journal Rotasi JURNAL TEKNIK MESIN Jurnal Simetris Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Bahan Alam Terbarukan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Rekayasa Mesin Majalah Ilmiah MOMENTUM Jurnal Rekayasa Mesin SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Pendidikan dan Teknologi Indonesia Mechanical Engineering for Society and Industry Automotive Experiences Journal of Biomedical Science and Bioengineering Jurnal Pengabdian Mandiri Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Bahan Alam Terbarukan
Fitriyana, Deni Fajar
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

Published : 46 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 46 Documents
Search

 1   2   3   4   5 
The Effect of KNO3 Addition on the Properties of Coconut Shell Charcoal Briquettes Achmad Erlangga Bintang Samodra; Fitriyana, Deni Fajar; samsudin anis; janviter manalu; Al Ichlas Imran; Januar Parlaungan Siregar; Tezara Cionita
Jurnal Bahan Alam Terbarukan Vol. 14 No. 1 (2025): June 2025 [Nationally Accredited Sinta 3]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v14i1.26289

Abstract

This research investigates the effects of incorporating potassium nitrate (KNO₃) into coconut shell charcoal briquettes, emphasizing their physical and chemical characteristics. Briquettes were manufactured utilizing coconut shell charcoal powder, tapioca flour as a binder, and different concentrations of KNO₃ (0% and 10%) as an additive. The aim was to assess the impact of KNO₃ incorporation on the water content, ash content, volatile matter, fixed carbon, calorific value, and density of the briquettes. The findings indicated that incorporating KNO₃ resulted in elevated water and ash content, adversely affecting combustion efficiency. Briquettes with increased water content demonstrated reduced mechanical strength and inferior combustion performance. The addition of KNO₃ led to an increased volatile matter content, facilitating ignition of the briquettes while simultaneously resulting in higher smoke emissions. The addition of KNO₃ resulted in a decrease in fixed carbon content, which subsequently lowered the calorific value of the briquettes. The formulation without KNO₃ produced the densest briquette, suggesting that including KNO₃ reduced the briquette density. The inclusion of KNO₃ enhances ignition characteristics; however, it concurrently diminishes the briquettes' overall quality regarding combustion efficiency and calorific value. The Briquette B_1 exhibited the highest results in this investigation, with water content, ash content, volatile matter, fixed carbon content, calorific value, and density values of 4.97%, 1.87%, 17.25%, 80.88%, 7014 Cal/g, and 0.90 g/cm³, respectively.
Desain dan Simulasi Elemen Hingga pada Soket Prostesis Transtibial Berbasis 3D Printing Selama Siklus Gaya Berjalan Wicaksana, Yazid Surya; Fitriyana, Deni Fajar; Anis, Samsudin; Ardhianto, Mochamad Marte
Jurnal Pendidikan dan Teknologi Indonesia Vol 5 No 7 (2025): JPTI - Juli 2025
Publisher : CV Infinite Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jpti.891

Abstract

Soket prostesis berperan penting dalam meningkatkan rehabilitas mobilitas pasien pasca amputasi demi mengembalikan pola gaya berjalan mendekati normal. Proses pembuatan soket prostesis memerlukan waktu dan biaya tinggi yang berdampak pada terbatasnya produksi. Teknologi 3D printing menawarkan solusi untuk meningkatkan efisiensi produksi. Namun, saat ini ketersediaan soket prostesis hasil 3D printing masih terbatas, dan penelitian mengenai performa mekanisnya terhadap siklus gaya berjalan belum banyak dilakukan. Dengan demikian, tujuan dari penelitian ini adalah untuk mengevaluasi dan menggambarkan performa material Polyethylene Terephthalate (PET), dan Acrylonitrile Butadiene Styrene (ABS) pada soket prostesis yang produksi melalui 3D printing. Penelitian ini menggunakan pendekatan metode elemen hingga dengan kondisi pembebanan yang mensimulasikan siklus gaya berjalan. Hasil penelitian mengidentifikasi fase heel-strike sebagai kondisi paling kritis selama siklus gaya berjalan dengan distribusi tegangan terpusat pada bagian posterior-distal soket. Material PET unggul dalam ketahanan lebih tinggi dengan faktor keamanan 1,393 dan tegangan von-Mises maksimum 37,65 MPa. Sedangkan, ABS memberikan kemampuan menahan deformasi lebih baik, dengan total deformasi 5,296 mm dan efektivitas biaya lebih rendah. Penelitian ini berkontribusi dalam pengembangan soket prostesis yang dipersonalisasi secara efisien dan aman melalui pendekatan simulasi struktural berbasis numerik, serta menawarkan rekomendasi pemilihan material yang optimal terhadap performa dan fungsionalitas soket prostesis hasil 3D printing.
Mechanical Performance of Epoxy Composite Reinforced with Wood Dust and Crumb Rubber Waste Imran, Al Ichlas; Siregar, Januar Parlaungan; Cionita, Tezara; Fitriyana, Deni Fajar; Anis, Samsudin; Dewi, Rozanna; Junaedi, Thomas; Wijayanto, Etanto Heiliano; Prayogo, Wisnu
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2041

Abstract

The incorporation of wood dust and crumb rubber waste as filler in polymer matrix composite still requires in-depth evaluation of mechanical properties because they have different characteristics. This study evaluates the tensile, flexural, and hardness properties of epoxy composites reinforced with various fractions of wood dust and crumb rubber (5, 10, and 15%). The results showed that the composite with 5% crumb rubber produced the highest tensile strength of 15.52 MPa (CR5), while the highest flexural strength was 30.46 MPa (CR10), and the highest hardness was 75.9 HRC (CR15), indicating superior performance for CR fillers. The observations of the fracture surface showed that increasing the fraction of wood dust contributed to lowering the mechanical performance due to the relatively large distribution of voids and agglomeration. This finding confirms the importance of filler type and fraction selection on composite performance. Future research is recommended to explore filler surface modification and hybrid combinations to improve dispersion and bonding between phases in composites.
Mechanical Properties of Epoxy Composite Reinforced with Spent Coffee Ground and Coffee Husk Etanto Heiliano Wijayanto; Imran, Al Ichlas; Siregar, Januar Parlaungan; Mohd Ruzaimi Mat Rejab; Tezara Cionita; Wisnu Prayogo; Deni Fajar Fitriyana; Rozanna Dewi; Thomas Junaedi; Agustinus Purna Irawan
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2052

Abstract

This study aims to investigate the effect of increasing the concentration of natural filler on the mechanical properties of Spent Coffee Ground (SCG) / Coffee Husk (CH) reinforced epoxy matrix composite. The materials used in this study are epoxy resin as a matrix and waste coffee grounds and coffee husks as natural fillers with sizes of 100-mesh and concentrations of 10, 20, and 30 wt.%. The results showed that SCG 10 wt.% produced the best mechanical properties compared to the other samples based on tensile strength (19.58 MPa), tensile modulus (1.70 GPa), flexural strength (44.55 MPa), and flexural modulus (2.32 GPa). On the other hand, CH 30 wt.% contributed the highest hardness value of 50.33 HRB compared to other samples. The findings in this study prove that the appropriate composition will affect the compatibility between the filler and the matrix, thus impacting the mechanical properties of the composite. This phenomenon can be seen based on microscope analysis, which shows a strong interaction between the matrix and filler and the formation of voids and agglomeration
Strengthening The Batik Home Industry Through Natural Dye Powder Innovation and Ultrasonic Dyeing Technology Anis, Samsudin; Maulana, Sonika; Fitriyana, Deni Fajar; Abidin, Zaenal; Marlangen, Retno; Kusumastuti, Adhi; Kamis, Arasinah
Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Vol 5 No 2 (2025): JIPPM - Desember 2025
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jippm.891

Abstract

Program pengabdian masyarakat ini bertujuan untuk menyebarluaskan pemanfaatan bubuk pewarna alami yang dikombinasikan dengan teknik pewarnaan berbantuan ultrasonik pada industri batik rumahan guna meningkatkan keberlanjutan dan efisiensi produksi. Program ini melibatkan 25 perajin batik yang berpartisipasi dalam sesi pelatihan, demonstrasi praktik, serta evaluasi pra-tes dan pasca-tes menggunakan instrumen tervalidasi yang terdiri dari sepuluh pertanyaan pilihan ganda tentang teknologi pewarnaan alami. Hasil menunjukkan peningkatan pemahaman peserta yang signifikan, dengan skor rata-rata pra-tes 56,8 meningkat menjadi 89,2 pada pasca-tes. Analisis efektivitas ternormalisasi (N-Gain) menghasilkan nilai 0,75, yang dikategorikan tinggi, menunjukkan efektivitas program dalam mentransfer pengetahuan dan keterampilan. Temuan ini menegaskan bahwa pewarnaan berbantuan ultrasonik dengan pewarna alami bubuk menawarkan keunggulan dalam hal waktu pemrosesan yang lebih singkat, penetrasi pewarna yang lebih baik, dan pewarnaan yang lebih konsisten dibandingkan metode konvensional. Selain hasil teknis, program ini berkontribusi dalam memberdayakan perajin lokal dengan memperkenalkan metode inovatif namun praktis yang selaras dengan praktik tekstil berkelanjutan. Kondisi tersebut menunjukkan pentingnya keterlibatan kolaboratif universitas–masyarakat dalam mempromosikan inovasi ramah lingkungan yang melestarikan warisan budaya sekaligus memperkuat daya saing industri batik rumahan.
Effect of Natural Fiber Stacking Sequence on the Properties of Hybrid Composites for Drone Frame Applications Janiviter Manalu; Jefri Bale; Khristhoper Aris Arianto Manalu; Frans Augusthinus Asmuruf; Fitriyana, Deni Fajar; Nizar Alamsyah; Januar Parlaungan Siregar; Al Ichlas Imran; Tezara Cionita; Natalino Fonseca Da Silva Guterres
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2048

Abstract

The present study highlights the effective utilization of waste fibers in structural composites for drone frame applications, offering a sustainable pathway for developing high-performance materials while simultaneously addressing the issue of textile waste pollution. This study investigates the effect of ramie and cotton fiber waste fabric stacking sequences on the physical and mechanical properties of composites for quadcopter drone frames. Waste fabric was selected as an eco-friendly material to address textile pollution. The composites were fabricated using the hand lay-up technique with a 3:1 epoxy resin to hardener ratio, incorporating five layers of fabric in different configurations. The physical and mechanical properties, including density, water absorption, material hardness, flexural strength, and macro photography, were tested. The results showed that the composite made from fully cotton fabric (K-K-K-K-K) had the best density (1.182 g/cm³), lowest water absorption (2.22%), highest hardness (85.6 HD), and flexural strength of 179.1 MPa. These findings indicate that cotton fabric waste is a promising, sustainable material for composite reinforcement in quadcopter drone frame applications.
Co-Authors A. P. Bayuseno Abdul Haris Abdul Latif Abdurrahman Abdurrahman Achmad Erlangga Bintang Samodra Adhi Kusumastuti Agus Prasetyo Agustinus Purna Irawan Agustinus Purna Irawan Ahmad Athoillah Akmal Putra Fardinansyah Al Ichlas Imran Aldias Bahatmaka Alfiana Fitri Istiqomah Alrasyid, Mochamad Dzaki Amrizal, Abdi Gilang Andi Abdullah Ghyferi Andri Setiyawan Ardhianto, Mochamad Marte Aripin, Muhammad Bustanul Atanasius Priharyoto Bayuseno Athanasius Priharyoto Bayuseno Athanasius Priharyoto Bayuseno Atika Atika Ayub Budhi Anggoro, Ayub Budhi Baharudin Priwintoko Bawono, Ayus Dios Chusni Ansori Cionita, Tezara Dimyati, Saeful Elisya Rohana Etanto Heiliano Wijayanto Fajri, Novila Rojabni Fardinansyah, Akmal Putra Fiqri Fadillah Fahmi Frans Augusthinus Asmuruf Fuad Arief Raharjo Galih Taqwatomo Gunawan Dwi Haryadi Guteres, Natalino Fonseca Da Silva Guterres, Natalino Fonseca Da Silva Hadi, Agung Efriyo Hanif Hidayat Hidayat, Wakhid Muhlisin I Nyoman Jujur Imanu Danar Herunandi Imran, Al Ichlas Iskandar Norman Iskandar, Ranu Ismail, Nur Hidayah Istiqomah, Alfiana Fitri Iwan Setyadi Jamiluddin, Jamiluddin Janiviter Manalu Januar Parlaungan Siregar Januar Parlaungan Siregar Januar Parlaungan Siregar Januar Parlaungan Siregar Jefri Bale JOHNSON SIALLAGAN Junaedi, Thomas Jurdan Fulandy Siswoyo Kalatharan, Sujentheran Nair Kamis, Arasinah Kano, Christina Paulina Karomi, Dimas Adib Kharisma Rizki Septareza Khristhoper Aris Arianto Manalu Kriswanto Kriswanto, Kriswanto M. Dzulfikar M. Dzulfikar Manalu, Janviter Marlangen, Retno Mat Rejab, Mohd Ruzaimi Mat Rejab, Mohd. Ruzaimi Meiartha, REGA Moh. Jufriyanto Mohd Ruzaimi Mat Rejab Mubarok, D.I. Muhamadin, Rilo Chandra Muhammad Afrizal Muhammad Dzulfikar Muhammad Fahrizal Almeir Muhammad Khafidh Muhammad Rezha Assalam Muhammad Yusuf Wibowo Muhammad Zulfikar Muhammad, Katon Muji Setiyo Murti Ayu Nur Safitri Natalino Fonseca Da Silva Guterres Nizar Alamsyah Norman Iskandar Norman Iskandar Norman Iskandar Nursafitri, Murti Ayu Pahlawan, Ilham Arifin Permata Ningtyas, Alviani Hesthi Pramesti, Santinia Andiva Prasetyo, Ares Yudi Pratama Eka P. S Prawibowo, Hartanto Prayogo, Wisnu Puspitasari, Windy Desti Putera, Finny Pratama Putri Agustin Priyani Rafif Dimas Pratama Rifky Ismail Rifky Ismail Risky Ismail Rizal Maulana Rizki Setiadi Rizqi Fitri Naryanto Romualdus Satrio Senoaji Rozanna Dewi Rusiyanto Rusiyanto, Rusiyanto Rusiyanto, R. Samsudin Anis Setiadi, Rizki Setiawan, Nur Ervil Silva, Mateus De Sousa Da Siregar, Januar Parlaungan Sonika Maulana sri Nugroho Sri Nugroho Sudiyono, S. Sulardjaka Sulardjaka Sulardjaka Sulardjaka Sulistyo Sulistyo Sulistyo Sulistyo Sunyoto Sunyoto Suwahyo - Tezara Cionita Tezara Cionita Tezara Cionita Thesar Aditya Nurcholis Thomas Junaedi Triyanto, Sandy Wahyu Hidayat Wicaksana, Yazid Surya Wijayanto, Etanto Heiliano Windy Desti Puspitasari Wirawan Sumbodo Wisnu Prayogo Yabansabra, Yuliana Ruth Yotenka, Rahmadi Yuris Setyoadi Yusuf Subagyo Zaenal Abidin