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All Journal Formosa Journal of Science and Technology (FJST) Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Jurnal Pengabdian Masyarakat (Jubdimas)
Qadry, Al
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Humanities Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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UJI KEKUATAN TARIK KOMPOSIT DENGAN PENGUAT SERAT SABUT KELAPA Boangmanalu, Eka Putra Dairi; Qadry, Al; Sinaga, Franklin Taruyun Hudeardo; Saragi, Jandri Fan HT; Pratama, Angga Bahri; Sitompul, Sahat
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 1 (2024): Edisi Februari
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v5i1.1484

Abstract

Serat dan ampas kelapa banyak dihasilkan oleh pedagang kelapa dan industry kelapa. Limbah serat kelapa tidak berbahaya karena organic dan bisa terurai. Akan tetapi limbah kelapa menjadi masalah karena kapasitas yang besar dan menjadi sampah yang kurang termanfaatkan. Atas dasar pertimbangan tersebut maka penelitan ini bertujuan untuk memanfaatkan serat sabuk kelapa sebagai salah satu solusi yang bisa digunakan sebagai new material bagi masyarakat dan industry. Penelitan ini dilaksanakan di Labolatorium Teknik Mesin Politeknik Negeri Medan dengan menggunakan mesin computer servo universal tensile machine dengan kapasitas maksimum mesin 100000 N. Matriks yang digunakan pada penelitian ini adalah resin polister yang disusun dengan serat dengan pertimbangan massa, dimensi dan diameter yang sama yang secara kontiniyu, acak dan terputus-putus. Sampel tersebut dibuat dengan komposisi fraksi volume yaitu (10:90) %, (20:80) %, (30:70) %, (40:60) %, dan (50:50) %. Matriks 50:50 % memiliki stress, strain dan modulus yang tertinggi pada pengujian kali ini. stress sebesar 14,98 MPa, strain 2,00%, beban 12.251 N dan modulus young sebesar 7,49 MPa.
Filter Air Untuk Peningkatan Kualitas Air Pada Usaha Ikan Hias Kelurahan Tualang Kecamatan Perbaungan Serdang Bedagai Siahaan, Kristianus Boby A.M.; Simanjuntak, Benrad E; Benar; Qadry, Al
JUBDIMAS ( Jurnal Pengabdian Masyarakat) Vol 3 No 1 (2024): Jurnal Pengabdian Masyarakat, Maret 2024
Publisher : Yayasan Cita Cendikiawan Al Kharizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/jubdimas.v3i1.320

Abstract

Betta fish is a type of ornamental fish that is very popular during the pandemic, so its selling price has experienced a spike. The reason why this fish is so popular is because of its tiny appearance with unique shape, as well as its extraordinary durability. Betta fish can survive in an aquarium for a long time even if they are not equipped with an aerator or air circulator. Maintenance is relatively easy, cultivation does not require a large space or large capital and can also be done as a home business. Mr. Suwandi, as the prospective service partner, has been running the ornamental fish cultivation business for this type of Betta fish for 5 years, where the fish are kept in tarpaulin fish ponds. There are around 29 fish ponds owned by partners with the number of fish per pond being around 200 to 300. The pool water source is dug well/ring well water where the pool water is replaced every 1.5 months. The quality of pond water greatly influences the sex of the fish produced. Male Betta fish can be sold for IDR 2,000 apiece, while females are only priced at IDR. 300 to 500. Because water quality has a big influence on the selling price, the implementation team added water filter installations after the well and before it flows into the pond. The water quality obtained after carrying out this activity was much better than the water samples obtained previously.
Charpy and Izod Method Impak Strength Analysis on ST 37 Steel with Temperature Variations Boangmanalu, Eka Putra Dairi; Pratama, Angga Bahri; Qadry, Al; Saragi, Jandri Fan HT; Sinaga, Franklin Taruyun Hudeardo
Formosa Journal of Science and Technology Vol. 2 No. 12 (2023): December 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v2i12.7074

Abstract

This research is impact testing using the Charpy and Izod methods, temperature variations of 1500 C, 2500 C and raw material as the research variable. The results of the Charpy test with a variation of 150 0C obtained a maximum absorbed energy of 97.65 J, with an impact value of 0.222 J/mm2. Then the maximum energy absorbed through testing at a temperature of 2500C is 78.28 Joules and the impact value is 0.177 J/mm2. Furthermore, the raw material test results showed that the maximum energy absorbed was 145.96 J with an impact value of 0.330 J/mm2. Izod testing with a temperature of 1500C obtained a maximum absorbed energy of 60.94 J with an impact value of 0.101 J/mm2. Furthermore, the maximum energy absorbed at a temperature of 2500C is 36.83 Joules and the impact value is 0.061 J/mm2. The raw material test results show that the maximum energy that can be absorbed is 80.53 J with an impact price of 0.133 J/mm2
Co-Authors Angga Bahri Pratama Benar Boangmanalu, Eka Putra Dairi Kristianus Boby A.M. Siahaan Saragi, Jandri Fan HT Simanjuntak, Benrad E Sinaga, Franklin Taruyun Hudeardo Sitompul, Sahat