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All Journal Rekayasa Mesin Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE)
Septian Dwi Wijaya
Politeknik Negeri Madura
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UTILIZATION OF BLACK STICKY RICE FOR BIOETHANOL PRODUCTION AS GASOLINE FUEL BLENDS FOR MOTORCYCLES Abdul Hamid; Misbakhul Fatah; Tegar Hermawan Priambodo; Septian Dwi Wijaya
Jurnal Rekayasa Mesin Vol. 13 No. 2 (2022)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v13i2.1190

Abstract

Despite possessing non-renewable properties, fossil fuel is still widely used as a major energy source. Subsequently, the fossil fuel demand has been increasing while the supply is depleting over time leading to an energy crisis. Fossil fuel also causes associated environmental problems such as emissions as the primary driver of global warming and climate change. Thereby, the development of alternative fuels, such as bioethanol, is beneficial to combat the fossil fuel challenges. Bioethanol is a promising fuel owing to its renewable and environmentally friendly characteristics. In this study, bioethanol was synthesized by a fermentation process over yeast (Saccharomyces Cerevisiae). The feedstock for this process is an abundant resource namely black sticky rice. Bioethanol resulting from this process was mixed with gasoline and applied to a motorcycle machine. The performance of bioethanol was defined by power, torque, and emission. The proportion of the mixture was varied with bioethanol content of 0%, 10 %, 20 %, 30 %, and 40%. The mixture of bioethanol-gasoline produced higher power and torque value compared to gasoline. The E40 mixture had the highest power and torque value with 8.5 hp and 9.2 Nm respectively. However, the combustion of bioethanol-gasoline resulted in more CO2 emission, while the emissions of O2, NO, and NOx were lower. The lowest NOx emissions content was obtained at E30 and E40 blends, about 7 ppm. Meanwhile, the lowest NO emission content was obtained at E30 and E40 blends, about 6 ppm.
Pengembangan Pusat Unggulan Teknologi, Center Of Heavy Equipment Untuk Mempersiapkan Sdm Bidang Mekanik Dan Operator Alat Berat Yang Kompeten Mohammad Anas Fikri; Ike Dayi Febriana; Laily Ulfiyah; Misbakhul Fatah; Lukman Hadiwijaya; Amin Jakfar; Auliana Diah Wilujeng; Annafiyah Annafiyah; Faizatur Rohmah; Abdul Hamid; Ratna Ayu Pawestri K. D; Septian Dwi Wijaya; Nadiyah Ulfah; Dimas Aryo Wicaksono; Ghopal Ahmad Fachrudin; Eddy Harsono
Journal of Applied Mechanical Engineering and Renewable Energy Vol 3 No 1: Februari2023
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jamere.v3i1.438

Abstract

The low demand for vocational education graduates has led to high unemployment. The low demand for vocational education graduates has led to high unemployment. Vocational college graduates still need to be commensurate with industrial needs. Many Senior High School, Vocational High School, and Vocational College graduates have not been able to find a job for more than six months. Conditions on Madura island worsened this, and the lack of accelerated industrialization even after the Suramadu Bridge was built. Madura has the lowest Human Development Index (HDI) score in East Java. Data from the Central Bureau of Statistics (BPS) Sampang in Figures 2021) shows that the HDI value in 2020 only increased by 0.76 from 2019 of 62.70. Politeknik Negeri Madura (Poltera) together with PT. United Tractors and LSP ABI want to take an active role in improving Madura's HDI by preparing human resources on heavy equipment mechanics through the development of a centre of excellence for technology (PUT) of Heavy Equipment (CHE). Using the causal-comparative method, the researcher observed the impact of each stage on PUT-CHE development activities and reviewed the data to find causal factors and correlations. Poltera took a strategic step by equipping lecturers with virtual training on heavy equipment mechanics (SOBAT Program), organized by PT United Tractors. The SOBAT program has positively impacted heavy equipment engineering graduates in 2022, which has increased significantly. Academic data showed that 13 out of 34 heavy equipment mechanical engineering graduates were employed in leading heavy equipment industries before three months. Other data stated that three lecturers participating in Virtual Training on heavy equipment mechanics were selected as 50 interns at PT United Tractors.
Co-Authors Abdul Hamid Amin Jakfar, S.T.,M.T., Lukman Hadiwijaya, S.T.,M.T. Annafiyah Auliana Diah Wilujeng Dimas Aryo Wicaksono Eddy Harsono Faizatur Rohmah Ghopal Ahmad Fachrudin Ike Dayi Febriana Laily Ulfiyah Lukman Hadiwijaya Misbakhul Fatah Mohammad Anas Fikri Nadiyah Ulfah Ratna Ayu Dewi Tegar Hermawan Priambodo