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Septiana, Reski
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Journal : AUSTENIT

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PENGARUH PADUAN JENIS PLASTIK PP, HDPE, DAN LDPE DAUR ULANG TERHADAP SIFAT MEKANIK BALOK PLASTIK HASIL INEJCTION MOLDING Hendra; Abdulah, Basuki; Ula, Shofiatul; Septiana, Reski; Hernadewita; Hermiyetti
AUSTENIT Vol. 17 No. 1 (2025): AUSTENIT: April 2025
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v17i1.10589

Abstract

The abundant amount of plastic waste and the high environmental problems it caused encourage the efforts to utilize recycled plastic materials in various applications, including the manufacture of plastic block produced using injection molding. This study aimed to analyze the effect of a mixture of recycled plastic types (PP, HDPE, and LDPE) on the mechanical properties of plastic blocks. Two of the three types of recycled plastic used were combined with a 1:1 composition and then molded into plastic blocks. Testing was carried out through tensile tests and impact tests to assess the tensile strength and toughness of the material. The results showed that the PP + HDPE alloy produced a tensile stress value of 26.2 MPa, a strain of 29.2%, and an elastic modulus of 89.6 MPa. While the average impact test value of this alloy reached 0.168 Joules/mm² with a maximum bending load of 3.94 kgf/cm². This alloy can be used as a reference material for manufacturing plastic blocks that have good mechanical properties.
PERANCANGAN KOMPOR BERBAHAN BAKAR OLI BEKAS UNTUK PENGERINGAN GARAM INDUSTRI Kurniawan, Harun; Septiana, Reski; Suryanegara, Lisman; Puspanegara, Dinar; Rayhan, Fajri Ashfi; Caniago, Deosa P
AUSTENIT Vol. 16 No. 1 (2024): AUSTENIT: April 2024
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v16i1.8566

Abstract

Salt as a source of important minerals is much needed by society and industry. In the salt-making process, salt must go through a drying phase. Salt drying at the Badan Riset Nasional (BRIN)’s workshop that uses wood pellet as the fuel is considered not optimal because of waste in waiting and processing time. Other alternative fuels are needed to maximize the salt production process, one of which is using used lubricating oil. Utilizing used lubricating oil as fuel for the salt drying process requires the conversion of burner or stove. This research aims to design a stove fueled by used lubricant oil for drying industrial salt. French method is used to design the stove. The stove that has been built iwas compared with wood pellet stove in terms of waiting time to reach the desired salt drying temperature, fuel operational costs, and capacity of the salt produced. The ST-44 steel oil stove with a diameter of 17 cm and a height of 13 cm could reach the drying temperature 15 minutes faster than a wood pellet stove without the need of supervising the feeding process. Daily operational costs for fuel consumption using used lubricating oil were also more economical with 25% more dry salt produced than using a wood pellet stove.
Co-Authors Abdulah, Basuki Affandi, Nurul Awang, Muhamad candra, joni eka Caniago, Deosa P Caniago, Deosa Putra Darmawan, Aulia Agung Deosa P. Caniago Dhimas Satria Ekasari Ekasari, Ekasari Hardian, Frengki Harly Demustila Harun Kurniawan Hendra H Hendra Hendra Hermiyetti Hernadewita Hernadewita, Hernadewita Justin, Kevin Kurnia, Okki Kurniawan, Harun Lawi, Ansarullah Magna, Raul Arifin Maharani, Shania Maria Yosefina Meinadia Sekar Kinanti Aswirawan Mekro Permana Pinem, Mekro Permana Nethania, Evelyn Nugraha, Kurnia Nurul Ilmi, Nurul Nurwijayanti Octa DRG, Dinda Puspanegara, Dinar Putra, Yoga Rahmadi Rafi Dio Rahmayetty Rayhan, Fajri Ashfi Rianoktawanto, Rianoktawanto Rina Rahayu, Rina Ririt Dwiputri Permatasari Rispandi Roland, Roland Shilah, Nur Simatupang, Devid Trinaldo Suryanegara, Lisman Ula, Shofiatul Widari N, Nadia Widiya Lestari Harahap