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Dian Kurnia
Politeknik Teknologi Kimia Industri Medan
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Sistem Pemodelan Flow Rate Control Menggunakan Teknologi 4.0 di Laboratorium Instrumentasi PTKI MEDAN mansyur mansyur; said hanief; Dian Kurnia; Toba Sastrawan Manik; Yanto Yanto
JURNAL VOKASI TEKNIK Vol 1 No 02 (2023): JURNAL VOKASI TEKNIK (JUVOTEK)
Publisher : CV MEDAN TEKNO SOLUSI

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Abstract

Pengukuran laju aliran fluida merupakan pengukuran untuk mendapatkan data-data untuk dianalisis karena pada prinsipnya fluida merupakan energi bertekanan yang semakin banyak dikembangkan industri. Setiap metode pengukuran laju aliran akan menghasilkan suatu nilai karakteristik yang berbeda-beda, tidak semua jenis pengukuran laju aliran dapat menggunakan metode yang sama, dilihat dari pressure drop yang dihasilkan akan mempengaruhi setiap metode yang digunakan. Pada penelitian ini dilakukan pengendalian laju aliran dan data rekonsiliasi pada penggabungan pipa. Pada pengukuran fluida sering dijumpai sambungan pipa seperti elbow dengan kemiringan tertentu. Kemiringan pada elbow, orifice dan venturi tersebut dapat mempengaruhi perbedaan tekanan maupun pressure drop pada fluida yang melewati elbow tersebut. Pada penelitian juga melakukan sistem pengendalian laju aliran melewati plat orifice dan transmitter sebagai sensor. Kemudian akan dikembangkan pada pengukuran laju aliran menggunakan sensing elemen dengan menggunakan mikrokontroller dan display monitoring dengan menggunakan komputer. Rekonsiliasi dilakukan dengan flow rate sebagai variabel pengukuran untuk membuktikan bahwa laju aliran sesuai yang diinginkan atau dengan set point. Data tersebut akan tersimpan langsung pada device computer. Hasil dari pengujian didapatkan bahwa nilai error tertinggi pada alat flowmeter 4.0 yakni 1,9 dengan nilai set point 40 %. Untuk nilai PID yakni P diangka 1,999 sedangkan I yakni 999 dan D pada angka 100 merupakan nilai PID yang paling optimal dan menunjukkan hasil paling cepat
PENGARUH TEMPERATUR UAP TERHADAP EKSPANSI VOLUME DAN TEGANGAN TERMAL RODA LORI DISTASIUN PEREBUSAN PT. X Herry Darmadi; Jery Manaor Simarmata; Sorta Lumbantoruan; Nurlianna Tarigan; Dian Kurnia; Novia Nelza
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 12, No 1 (2026): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v12i1.15083

Abstract

Lorry wheels at the boiling station of a Palm Oil Mill (PKS) are exposed to high-temperature saturated steam during the boiling process, which causes volume expansion and thermal stress in the wheel material. This study aims to analyze the effect of steam temperature on volume expansion and thermal stress on lorry wheels in the palm oil mill sterilization station. Data were obtained through direct observation and theoretical calculations using ASTM A36 steel material parameters. The results show that an increase in steam temperature from 110.27°C to 133.59°C causes volume expansion of up to 1.39 × 10⁻⁵ m³ and thermal stress of up to 241.41 MPa, approaching the material's yield strength (250 MPa). It is concluded that steam temperature significantly affects deformation and potential failure of lorry wheel material.
ANALISA PENGUJIAN MEKANIK TERHADAP VARIASI PENGGUNAAN BENTONITE DALAM PENGECORAN PINTU RUANG BAKAR: STUDI EKSPERIMEN DI PT. XYZ Herry Darmadi; Muhammad Fatih Abdillah; Agustin Nurya Savitri; Karti Karti; Dian Kurnia; Murhaban Murhaban
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 2 (2025): Oktober
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i2.13836

Abstract

The Combustion chamber door is a component of the boiler that functions to open and close the combustion chamber. At PT. XYZ, the combustion chamber door is made through the melting and metal casting method. In the metal casting method using a sand mold, an auxiliary substance in the form of bentonite is needed which functions to glue the sand mold and strengthen the mold so that it is not easily destroyed when receiving heat from the molten metal lava. The bentonite variations used in this study are 8%, 10%, and 12%. Mechanical testing (impact and hardness) is the most effective test to determine the description of the mechanical properties of a material. The purpose of this study is to determine the magnitude of the impact strength of the metal casting results in the manufacture of combustion chamber doors with different bentonite variations impact testing with the Charpy Impact Test method and the hardness value of the metal casting results in the manufacture of combustion chamber doors with different bentonite variations through hardness testing with the Rockwell Hardness Test method. In the impact test, the results of the impact strength analysis of the 8% bentonite variation were 0.1655 Kg.m/mm2, the 10% bentonite variation was 0.2119 Kg.m/mm2, and the 12% bentonite variation was 0.2555 Kg.m/mm2. In the hardness test, the results of the hardness analysis on the 8% bentonite variation were 104,7 HRC, the 10% bentonite variation was 92,1 HRC, and the 12% bentonite variation was 81,8 HRC.
Co-Authors Agustin Nurya Savitri Herry Darmadi Jery Manaor Simarmata Karti Karti mansyur mansyur Muhammad Fatih Abdillah Murhaban Novia Nelza Nurlianna Tarigan said hanief Sorta Lumbantoruan Toba Sastrawan Manik Yanto Yanto