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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro Rekayasa Mesin Media Mesin: Majalah Teknik Mesin ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Rekayasa Material, Manufaktur & Energi Ihsan: Jurnal Pengabdian Masyarakat Budapest International Research in Exact Sciences (BirEx Journal) Poltekita: Jurnal Pengabdian Masyarakat Proceeding International Seminar of Islamic Studies Jurnal Polimesin
Siregar, Munawar Alfansury
Universitas Muhammadiyah Sumatera Utara
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Journal : Rekayasa Mesin

 1 
Analisa Energi pada Alat Desalinasi Air Laut Tenaga Surya Model Lereng Tunggal Siregar, Munawar Alfansury; Damanik, Wawan Septiawan; Lubis, Sudirman
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.21

Abstract

The use of solar energy every day is increasing due to the greater human need for energy. the application of solar desalination equipment is classified as a renewable technology that is very profitable because the energy used is obtained for free and does not cause damage to the environment. This study examines the performance of the solar desalination device with a single slope model with a passive system. It is hoped that greater energy absorption is expected to accelerate the process of evaporation of seawater in the evaporator so as to produce lots of clean water. The desalination tool on the surface of the wall is insulated using aluminum foil with a thickness of 20 mm. The highest solar intensity was obtained on the fifth day of testing, namely 420.85 W/m2 with the radiation heat transfer coefficient of 18.44 W/m2 oC, and the lowest solar intensity on the second day, namely 96.89 W/m2 with the lowest total outside heat transfer coefficient of 25.57 W/m2 oC. The highest evaporative heat transfer coefficient is 10.54 W/m2 oC and the lowest is 4.42 W/m2 oC. the lowest energy absorbed by the evaporator on the second day was 1.37 kWh. And the highest efficiency on the fifth day reached 58.89% and the lowest energy efficiency on the second day, namely 34.05%.
POTENSI LIMBAH CANGKANG KERANG SEBAGAI KATALIS HETEROGEN UNTUK PEMBUATAN BIODIESEL Sebayang, Abdi Hanra; Pulungan, Muhammad Anhar; Siahaan, Sihar; Benu, Siti Maretia; Ibrahim, Husin; Siregar, Munawar Alfansury; Silitonga, Arridina Susan
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1428

Abstract

Biodiesel is a potential energy source that has attracted attention recently because it can be produced from renewable energy sources and produces low pollutants. Biodiesel is produced by transesterifying edible or non-edible vegetable oils using a catalyst. Homogeneous catalytic processes have disadvantages, such as the catalyst residue cannot be reused. Therefore, heterogeneous or solid catalysts are used, which can be easily separated from the reaction mixture by filtration and reused. A waste cockle shell can be used as a green base catalyst to synthesize waste cooking oil into methyl ester (WCME). The free fatty acid content of used cooking oil (2.19% wt.) was initially reduced to 0.11% wt., using a methanol-oil ratio of 6:1, waste cockle shell 2% wt., reaction time 60 minutes and temperature 60 oC. The effectiveness of the developed waste cockle shell contains high CaO. The results of this study indicated the potential of clam waste cockle shells and used cooking oil as a source of raw materials available in the community for biodiesel production.
POTENSI LIMBAH CANGKANG KERANG SEBAGAI KATALIS HETEROGEN UNTUK PEMBUATAN BIODIESEL Sebayang, Abdi Hanra; Pulungan, Muhammad Anhar; Siahaan, Sihar; Benu, Siti Maretia; Ibrahim, Husin; Siregar, Munawar Alfansury; Silitonga, Arridina Susan
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1428

Abstract

Biodiesel is a potential energy source that has attracted attention recently because it can be produced from renewable energy sources and produces low pollutants. Biodiesel is produced by transesterifying edible or non-edible vegetable oils using a catalyst. Homogeneous catalytic processes have disadvantages, such as the catalyst residue cannot be reused. Therefore, heterogeneous or solid catalysts are used, which can be easily separated from the reaction mixture by filtration and reused. A waste cockle shell can be used as a green base catalyst to synthesize waste cooking oil into methyl ester (WCME). The free fatty acid content of used cooking oil (2.19% wt.) was initially reduced to 0.11% wt., using a methanol-oil ratio of 6:1, waste cockle shell 2% wt., reaction time 60 minutes and temperature 60 oC. The effectiveness of the developed waste cockle shell contains high CaO. The results of this study indicated the potential of clam waste cockle shells and used cooking oil as a source of raw materials available in the community for biodiesel production.
Co-Authors Abdi Hanra Sebayang Ahmad Marabdi Siregar Amiruddin, Arfis Arif, Arfian Arridina Susan Silitonga - Benny Oktrialdi Benny Oktrialdi Benu, Siti Maretia Evalina, Noorly Faisal Irsan Pasaribu Harahap, Partaonan Hasibuan, Edi Sarman Ibrahim, Husin Irpansyah Siregar Khairul Umurani khairul umurani Mangopo, Dultudes Muhammad Anhar Pulungan Nasutioon, Arya Rudi Partaonan Harahap Puja Rizqy Ramadhan Rahmatullah . Rahmatullah Rahmatullah Rahmatullah Rahmatullah Riawansyah Riawansyah Rimbawati RITONGA, RAHMAT Sihar Siahaan Siregar, Chandra A Siregar, Rahmad Syukur Sudirman Lubis Tanjung, Wira Agus Lexmana Umurani, Khairul Wawan Septiawan Damanik