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All Journal Jurnal Rekayasa Proses Jurnal Rekayasa Proses Journal on Education International Journal for Educational and Vocational Studies Jurnal Vokasi Jurnal Surya Teknika International Journal of Engineering, Science and Information Technology Malikussaleh Journal of Mechanical Science Technology Jurnal Pengabdian Kepada Masyarakat Abdi Putra Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal Jurnal Ilmiah Mahasiswa Agroekoteknologi Electronic Journal of Education, Social Economics and Technology International Journal of Trends in Mathematics Education Research (IJTMER) Jurnal Malikussaleh Mengabdi Jurnal Rekayasa Proses Journal of Mechanical Engineering and Fabrication
Ferri Safriwardy
Universitas Malikussaleh
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Optimization of Tensile Strength in Pineapple Leaf Fiber Composites: A Study of Fiber Volume Fractions with Clear Polyester Resin Fatimah Zahra; Ferri Safriwardy; Muhammad Habibi; Zulmiardi Zulmiardi; Muhammad Nuzan Rizki
Electronic Journal of Education, Social Economics and Technology Vol 6, No 2 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i2.1086

Abstract

The utilization of pineapple leaf fiber is still relatively small, only used as a basic material for various types of furniture products, fabrics for fashion products, crafts and composites as forming materials. This study aims to analyze the tensile strength of pineapple leaf fiber composites with variations in volume fractions using clear polyester resin. In this study, composites were made using three different volume fractions, namely 60% fiber: 40% resin, 70% fiber: 30% resin, and 85% fiber: 15% resin. After the test specimen manufacturing process, the specimens were then tested for tensile strength on each volume fraction. The results of this study indicate variations in tensile strength on each volume fraction used, where using a volume fraction of 85% fiber: 15% resin produces higher tensile strength compared to the volume fraction of 60% fiber: 40% resin and 70% fiber: 30% resin. Pineapple leaf fiber reinforced composites with variations in the volume fraction of pineapple leaf fiber 60%: resin 40%, pineapple leaf fiber 70%: resin 30%, and pineapple leaf fiber 85%: resin 15%. From the percentage variations, the highest tensile strength is in pineapple leaf fiber 85%: resin 15% with an average value of 105.69 MPa, elastic modulus strength of 1571 MPa, and elongation of 6.74%. While the lowest tensile strength value is in pineapple leaf fiber 60%: resin 40%, with an average value of 74.30 MPa, elastic modulus strength of 1231 MPa, and elongation of 6.04%, it can be concluded that the higher the percentage of fiber, the higher the tensile strength value. Variations in the volume fraction of pineapple leaf fiber can affect the mechanical properties of clear polyester resin composites. The composite strength value often increases with the increase in the fiber volume fraction. However, a high fiber volume fraction does not always have a good effect on the strength of the composite. The strength of the composite is not only influenced by the number of fibers but is also influenced by the binding factor, namely the matrix.
Impact and Bending Tests of Coconut Palm and Thorny Bamboo Laminated Beams for Wooden Ship Keel Construction Firza Ikramullah; Ferri Safriwardy; Suryadi Suryadi; Reza Putra; Faisal Faisal; Masrullita Masrullita
Electronic Journal of Education, Social Economics and Technology Vol 6, No 1 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i1.403

Abstract

Impact and bending tests were conducted on laminated beams made from coconut palm and thorny bamboo to evaluate their potential as alternative materials for wooden ship keels. The study compared the shock load and bending strength of laminated beams with three-layer variations (3, 5, and 7), arranged in a carvel pattern. Testing followed ASTM D6110-10 for impact and ASTM D143 for bending, with moisture content kept below 18% per BKI standards. Results showed that impact strength increased with more layers, from 0.144 J/mm² (3 layers) to 0.248 J/mm² (7 layers). Bending strength also improved, from 14.37 MPa (3 layers) to 38.32 MPa (7 layers). However, the materials fell into Strength Class IV-V under Indonesian Classification Board standards, making them unsuitable as solid wood alternatives for ship keels due to insufficient strength.
OPTIMASI ENERGI PADA PRODUKSI ETILEN GLIKOL DENGAN PROSES STERILISASI: STUDI SIMULASI MENGGUNAKAN ASPEN HYSYS DENGAN METODE RESPONSE SURFACE METHODOLOGY (RSM) Yus Mita; Nasrul ZA; Rizka Mulyawan; Leni Maulinda; Azhari Azhari; Ferri Safriwardy
Chemical Engineering Journal Storage (CEJS) Vol. 6 No. 03 (2026): Chemical Engineering Journal Storage (CEJS)-Juni 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v6i03.20353

Abstract

Penelitian ini bertujuan untuk mengoptimalkan produksi etilen glikol dari limbah etilen oksida hasil proses sterilisasi menggunakan simulasi Aspen Hysys dan metode Response Surface Methodology (RSM). Etilen glikol merupakan produk kimia penting yang banyak digunakan di berbagai industri, seperti otomotif, tekstil, dan plastik. Namun, proses produksi tradisional sering kali memiliki tantangan terkait konsumsi energi yang tinggi dan pembentukan produk sampingan yang tidak diinginkan. Dalam penelitian ini, limbah etilen oksida dari proses sterilisasi diolah kembali untuk menghasilkan etilen glikol dengan pendekatan yang lebih efisien secara energi. Simulasi dilakukan menggunakan perangkat lunak Aspen Hysys untuk memodelkan berbagai skenario operasional, termasuk variasi suhu, tekanan, dan fraksi uap. Optimasi dilakukan menggunakan metode Response Surface Methodology (RSM) dengan desain eksperimen Central Composite Design (CCD) untuk mengevaluasi interaksi antar variabel. Berdasarkan hasil prediksi RSM, kondisi optimal tercapai pada suhu 196°C, tekanan 14 atm, dan fraksi uap 0,6, yang menghasilkan kemurnian produk sebesar 99,85%, penghematan energi mencapai 55,869%, dan kapasitas produksi sebesar 15.176,596 kg/jam. Hasil simulasi aktual menunjukkan sedikit perbedaan dengan hasil prediksi, di mana penghematan energi tercatat sebesar 62,09%, kapasitas produksi 14.318,3067 kg/jam, dan kemurnian produk tetap berada pada angka 99,85%. Analisis varians (ANOVA) menunjukkan bahwa suhu dan fraksi uap memiliki pengaruh yang signifikan terhadap efisiensi energi dan kapasitas produksi. Hasil penelitian ini membuktikan bahwa pendekatan kombinasi simulasi Aspen Hysys dan optimasi RSM efektif dalam meningkatkan efisiensi energi dan memaksimalkan hasil produksi etilen glikol.
Co-Authors -, Meriatna - Abdul Rahman Akbar Gultom ARDIANSYAH ARDIANSYAH Auliani Auliani Auliani Auliani, Auliani Azhari Azhari Banta Cut Budi Istana Dabet, Abubakar Dalimunthe, Khanisya Ratu Asva Daniel, Muhammad Dewi, Rozanna - Faisal Faisal Faisal Faisal Faisal Faisal Fatiha Lubis, Rabitha Canny fatimah Fatimah Fatimah Zahra Firza Ikramullah Fonna, Syarizal Gultom, Akbar Hasfita, Fikri - Heindrix Hidayat Hery Widijanto Iis Marsithah Ikramullah, Firza Ismadi Ismadi Jalaluddin Kamar, Iqbal Leni Maulinda Leni Maulinda, Leni Marwan Marwan Masrullita Masrullita Masrullita Masrullita Masrullita Masrullita, M Masrullita, Masrullita Maulida, Muhammad Hashemi Meriatna Meriatna Miko, Riyandi Mutuah Muhammad Muhammad Habibi Muhammad Habibi Muhammad Nur Muhammad Nuzan Rizki Muhammad Sayuthi Muhammad Yusuf Muhammad Zulfri Nasrah, Sayni Nasrul ZA Novi Sylvia Nurlaila, Rizka Nurul Islami, Nurul Putra, Reza Rafli, Muhammad Rahma Yanti Reza Putra Rizka Mulyawan Rizka Nurlaila S, Syahri Salsabil, Safyra Qathrunnada Simbolon, Muhammad Iqbal Siraj Siraj Siraj Siswahyudianto Suryadi Suryadi Suryadi Suryadi Suryati Suryati Suryati Suryati Suryati Syifaul Huzni Sylvia, Novi - Taufiq Taufiq Tiara Rozah Wansah, Zul Wusnah Wusnah, Wusnah Yasir Amani Yasir Amani Yogi Ardhika Wijaya Yus Mita Zainuddin Ginting Zulmiardi, Zulmiardi