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All Journal Jurnal Engine: Energi, Manufaktur, dan Material BERNAS: Jurnal Pengabdian Kepada Masyarakat
Hb. Sukarjo
Universitas Proklamasi 45 Yogyakarta
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Analisa Kekerasan dan Keausan Cylinder Sleeve dari Besi Cor Kelabu FC250 Hasil Sand Mold Casting Sumpena Sumpena; Hb. Sukarjo; Wardoyo Wardoyo; Soksono Singgih Pramana
Jurnal Engine: Energi, Manufaktur, dan Material Vol 5, No 2 (2021)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v5i2.944

Abstract

The Cylinder sleeve is an engine component that is mounted on the cylinder block which functions as a piston glide base. The cylinder sleeve is made of FC250 gray cast iron. FC250 is a gray cast iron that has lamellar graphite with a tensile strength of at least 250 MPa. This study aims to determine the mechanical properties of hardness and wear of the Cylinder Sleeve made of gray cast iron FC250. The method used in this research is gray cast iron which is cut with a length of 5.5cm, thickness 0.7cm, height 0.7cm which is formed according to the standard size of the hardness and wear test. The tests carried out include testing brinell hardness and wear. The results showed that the lowest hardness value was 134.63BHN and the highest hardness value was 191.43BHN. The increase in hardness values is influenced by the carbon content that cannot be spread evenly, which is followed by a fast cooling rate. The results of the wear test obtained the lowest price of 0.00017mm³/kg.m and the highest wear price of 0.00028 mm³/kg.m.
Pengenalan Alat Core Flooding pada Siswa Program Studi Teknik Pemboran Minyak SMK Bina Harapan Yogyakarta Lia Yunita; HB. Sukarjo; Sari Wulandari Hafsari
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 4 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i4.6717

Abstract

Proses pembelajaran di SMK program studi Teknik pemboran diperkenalkan alat Core Flooding dalam upaya peningkatan pemahaman mengenai sifat fisik batuan reservoir yang berkaitan dengan Enhached Oil Recovery (EOR). EOR merupakan perolehan minyak tahap lanjut dengan cara menginjeksikan suatu zat yang berasal dari salah satu atau beberapa metode pengurasan yang menggunakan energi luar reservoir. Pengertian Core adalah sampel atau contoh batuan yang diambil dari bawah permukaan. Kegiatan pengambilan core dilakukan pada saat pemboran. Tujuan pengabdian adalah memberikan pelatihan kepada siwa SMK program studi Teknik Pemboran dengan memberikan gambaran mengenai mekanisme pendesakan didalam batuan reservoir pada proses injeksi fluida di Enhached Oil Recovery. Metode yang digunakan dengan melakukan pelatihan dengan alat core flooding. Evaluasi keberhasilan program dilakukan dengan mengadakan pretes dan posttes adanya alat core flooding. Sasaran pengabdian yaitu SMK Bina Harapan Prodi Teknik Pemboran Minyak dan Gas Bumi kelas XI dan XII semester ganjil tahun ajaran 2023/2024. Pemahaman siswa meningkat dari sebelum pelatihan alat core flooding yaitu 5 siswa (29,4 %) meningkat menjadi 16 siswa (94 %) dari 17 siswa setelah adanya pelatihan alat core flooding.
Co-Authors Sari Wulandari Hafsari Soksono Singgih Pramana Sumpena Sumpena Wardoyo Wardoyo Yunita, Lia