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Kata Pengantar dan Daftar Isi Vol. 1 No. 2 Silviana Simbolon
Piston: Journal of Technical Engineering Vol 1, No 2 (2018)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.173 KB) | DOI: 10.32493/pjte.v1i2.3233

Abstract

Kata Pengantar dan Daftar Isi Vol. 2 No. 1 Silviana Simbolon
Piston: Journal of Technical Engineering Vol 2, No 1 (2018)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1959.152 KB) | DOI: 10.32493/pjte.v2i1.3234

Abstract

Kata Pengantar dan Daftar Isi Vol. 2 No. 2 Silviana Simbolon
Piston: Journal of Technical Engineering Vol 2, No 2 (2019)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1136.174 KB) | DOI: 10.32493/pjte.v2i2.7348

Abstract

EFEK ADITIF FeMo DAN PROSES KALSINASI PADA SERBUK MAGNETIK BaFe12O19 Ayu Yuswita Sari; Cut Hani Safira; Eko Arief Setiadi; Silviana Simbolon; Candra Kurniawan; Perdamean Sebayang
Jurnal Sains Materi Indonesia Vol 18, No 3: APRIL 2017
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.844 KB) | DOI: 10.17146/jsmi.2017.18.3.4112

Abstract

Pada penelitian ini, telah dilakukan investigasi efek aditif FeMo dan proses kalsinasi pada pembuatan magnet permanen bariumheksaferit (BaFe12O19). Proses pembuatan magnet bariumheksaferit dilakukan denganmetode mechanical alloying. Serbuk hasil mixing antara BaFe12O19dan FeMo dikalsinasi dengan variasi suhu kalsinasi 1000 oC dan 1200 oC. Karakterisasi yang dilakukan meliputi sifat fisis dan magnetik, dengan menggunakan X-Ray Diffraction (XRD) dan piknometeruntuk mengetahui fasa dan nilai densitas magnet, serta menggunakanVibrating SampleMagnetometer (VSM) pada pengukuran sifatmagnetikmagnet bariumheksaferit. Dari hasil eksperimen, dapat diketahui bahwa penambahan aditif FeMo dapat menaikkan nilai densitas pada serbuk bariumheksaferit. Hasil analisis sifat magnetik, dapat diketahui bahwa penambahan aditif FeMo secara keseluruhan menurunkan sifat magnetik magnet. Namun penambahan %wt FeMo menaikkan nilai remanensi, saturasi dan energi produk maksimum (BHmax) magnet barium heksaferit, meskipun nilai koersivitas magnet tetap menurun. Sedangkan kenaikan suhu kalsinasi mampu menaikkan nilai remanensi, dan BHmax, namun menurunkan nilai koersivitas dan saturasi dari magnet barium heksaferit. Hal ini menunjukkan penambahan zat aditif FeMo mampu mengubah struktur material magnet permanen barium heksaferit dari hard magnetik menjadi soft magnetik material. Nilai optimumdihasilkan pada komposisi penambahan 5 %wt aditif FeMo dengan nilai densitas serbuk 3,71 g/cm3 sebelum dikalsinasi, dan memiliki sifat magnetik seperti: saturasi 2,12 kG, remanensi 1,15 kG, koersivitas 0,45 kOe dan BHmax0,145 MGOe setelah dikalsinasi pada suhu 1000 oC.
Sintesis Papan Komposit Serat Bambu Apus dan Serbuk Kayu Jati dengan Metode Hot Press untuk Aplikasi Door Trim Mobil Silviana Simbolon; Silviana Simbolon
Jurnal Ilmiah Teknik Kimia Vol 6, No 2 (2022): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v6i2.21084

Abstract

Research has been carried out on composites from apus bamboo fiber and teak wood particles for car door trim applications. The research method used is compression molding using a hot press machine and testing is based on ISO 527-2 & ASTM D790 standards. This analysis uses the independent variable, namely the ratio of the volume fraction of apus bamboo fiber and teak wood particles 10:30, 20:20, 30:10%. While the fixed variables are 60% epoxy volume fraction, hot press temperature 100°C, pressing load 30 psi, and for 20 minutes. From the tensile test data, it is found that the variation of 30:10% fiber and particles which the variation with the best result is 84.69 MPa, then followed by a variation of 20:20%, is 42.60 MPa. The two variations above the minimum standard value of high-density fiberboard SNI 01-4449-2006:5-9 is 35 MPa. While the variation of 10:30% gets a value of 21.61 MPa which is below the minimum standard. For the bending test, the variation of 30:10% is the variation with the best result, which is 60.24 MPa and is above the minimum standard. Meanwhile, the variation of 10:30% and 20:20% has the lowest bending strength value with a value of 15.43 MPa and 29.61 MPa and is still below the minimum standard that has been set. For the fracture surface results, all variations resulted in fiber pull-out failure but the 30:10% variation which has ductile fracture properties and is considered safer for car door trim applications.
SIMULASI KONTRUKSI MESIN HOT PRESS PAPAN KOMPOSIT PADA SAMBUNGAN BAUT TAP MENGGUNAKAN SOFTWARE SOLIDWORKS Edi Tri Astuti; Abdul Latif; Silviana Simbolon
Jurnal Teknik Mesin Cakram Vol 5, No 2 (2022)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jtc.v5i2.27085

Abstract

Komposit merupakan struktur material yang terdiri dari banyak bahan penyusun yang digabungkan untuk membentuk material baru dengan sifat yang lebih baik dari pada sifat individu bahan penyusunnya. Mesin hot press papan komposit merupakan alat press sederhana yang dapat melakukan pengepressan panas dengan praktis dan efisien disertai distribusi panas. Metodologi penelitian ini dilakukan dengan menggunakan metode elemen hingga dengan pembebanan 80 N dengan variasi ukuran baut M8, M6 dan M4. Software Solidworks Premium 2020 digunakan dalam penelitian ini untuk melakukan analisis lanjutan penelitian kekuatan sambungan baut untuk menahan beban rata-rata, deformasi, dan factor keamanan pada baut tap penjepit rangka plat pemanas mesin hot press papan komposit. Nilai tegangan Von Mises Stress berturut-turut yaitu 2,667 N/mm2, 4 N/mm2 dan 10,386 N/mm2. Nilai deformasi maksimal yaitu 0.000278 mm, 0,000551 mm dan 0,001235 mm. Nilai faktor keamanan simulasi minimum 24, 17 dan 9,8. Baut tap untuk sambungan mesin hot press papan komposit dinyatakan aman dan tidak terjadi kegagalan jika diberikan beban 80 N
Kata Pengantar dan Daftar Isi Vol. 1 No. 2 Silviana Simbolon
Piston: Journal of Technical Engineering Vol 1, No 2 (2018)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v1i2.3233

Abstract

Kata Pengantar dan Daftar Isi Vol. 2 No. 1 Silviana Simbolon
Piston: Journal of Technical Engineering Vol 2, No 1 (2018)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v2i1.3234

Abstract

Kata Pengantar dan Daftar Isi Vol. 2 No. 2 Silviana Simbolon
Piston: Journal of Technical Engineering Vol 2, No 2 (2019)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v2i2.7348

Abstract

Pengembangan Sistem Pendingin Cold Box Penyimpanan Ikan Dengan Pemanfaatan Pcm Silviana Simbolon; Sigit Bagus Hakim; Marwan Marwan; Sukendar Sukendar; Yuliarman Yuliarman; Kusdi prijono; Muhammad Yunus
Jurnal Teknik Mesin Vol 16 No 2 (2023): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.16.2.1249

Abstract

One of the technologies in the refrigeration system to improve power and cost efficiency is to utilize technology to overcome this problem is to use phase change materials (PCM) to replace standard refrigerants. The purpose of this study is an attempt to reduce the operational cost of fish storage with a cold box cooling system for fish storage by utilizing PCM. The method used in this research is the experimental method. From the results of the study obtained data using a variation of 2 PCM compressor takes 219.7 minutes when mode ON for 7 hours of testing, variation 4 PCM compressor takes 202.7 minutes when mode ON for 7 hours of testing, variation 6 PCM takes 177.4 minutes when mode ON for 7 hours of testing. With this variation 6 PCMs are more optimal in helping to reduce compressor working time. The more the number of PCMs placed in the cold box can help reduce the compressor on/off cycle and the electrical energy required by the compressor is more efficient, the most efficient variation is the 6 PCM variation with a power efficiency of 15.31%. With the use of PCM can save operational costs up to 59.54% compared to using ice blocks. The design of cold boxes using PCM will benefit after 3 months of use compared to using block ice.