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All Journal Infotekmesin Jurnal Ilmiah Ultras
Ahmad Farid
Universitas Pancasakti
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Pengaruh Exhaust Gas Recirculation (EGR) Terhadap Exhaust Gas Temperature (EGT) dan Smoke opacity Mesin Diesel 4JB1 Berbahan Bakar Biodiesel Jatropa-etanol Syarifudin; Faqih Fatkhurrozak; Firman Lukman Sanjaya; Ahmad Farid
Infotekmesin Vol 13 No 2 (2022): Infotekmesin: Juli, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i2.1542

Abstract

Human dependence on motorized vehicles is getting higher and uncontrollable. This actualization will certainly have an impact on reducing fuel stocks and air pollution with soot emissions. Combining diesel fuel with jatropha and alcohol is predicted to reduce dependence on diesel fuel and air pollution. Supplying the combustion chamber with exhaust gas/Exhaust Gas Recirculation/EGR is also predicted to reduce soot emissions and reduce fuel consumption. This study aims to observe the effect of using the EGR system on the use of mixed fuel jatropha and ethanol exhaust gas temperature/EGT as an indication of performance and soot/smoke opacity as exhaust emissions. The experimental results show the use of the EGR system increases EGT and Smoke opacity decreases the diesel engine in each fuel variation. D100 fuel EGT increased 1.67%, DJ10 increased 0.71%, DJ10E increased 0.67%, DJ20 increased 1.45%, DJ20DE increased 1.07%, DJ30 increased 1.50%, and DJ30E fuel EGT increased by 1.47%. While on the emission side, the smoke opacity of D100 fuel decreased by 1.84%, DJ10 decreased by 1.71%, DJ10E decreased by 2.21%, DJ20 decreased by 0.96%, and DJ20E decreased by 2.33, DJ30 decreased by 2.99%, and DJ30E fuel decreased 1.30%.
PERENCANAAN DAN PERANCANGAN AERATOR TAMBAK TENAGA ANGIN TIPE SAVONIUS DUA TINGKAT Ahmad Farid; Irfan Santosa; Hadi Wibowo
JURNAL ILMIAH ULTRAS BREBES Vol 1 No 1 (2017): Jurnal Ilmiah Ultras Brebes
Publisher : Badan Perencanaan Pembangunan, Riset dan Inovasi Daerah Kabupaten Brebes

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Abstract

The purpose of the two-level type wind aerator planning aerator is the solution of several problems such as decreasing the quality of water; Aerator mill sold in the market price is relatively expensive and the previous aerator design with horizontal axle model that felt less maximal in obtaining wind energy from all directions. The method used in this research is the calculation by using the equations and experimental methods by testing on the design results. The results obtained from the calculation analysis that the aerator planning obtained data that the dimensions of the turbine (rotor radius) must be greater than the radius of the aerator wheel with a ratio of 1: 1.25 to 1: 4.15 where the power required between 0.013 HP to 0.213 HP. While the dimensions of wind turbine that is made is with radius 0.40 m and the radius of water wheel 0.15m. The test results that the vertical axis wind turbine with a diameter of 0.4 m at wind speeds of 3.7 to 5.53 m / s obtained a maximum turbine power of 14.3W, while in the application of increasing the amount of oxygen obtained the amount of dissolved oxygen in water 6,575 Mg / L. The comparison of the three aerators in terms of purchase price economy and operational costs where for the aerator of wind farms is obtained Rp. 157.00 / hour; Diesel power aerator Rp. 7107.00 / hour and electric power aerator is Rp. 2.048,00 / hour, wind power aerator still cheaper cost /hour Rp 1.891,00 to Rp. 6.950.00.
Co-Authors Faqih Fatkhurrozak Firman Lukman Sanjaya Hadi Wibowo Irfan Santosa Syarifudin