Pengaruh Exhaust Gas Recirculation (EGR) Terhadap Exhaust Gas Temperature (EGT) dan Smoke opacity Mesin Diesel 4JB1 Berbahan Bakar Biodiesel Jatropa-etanol

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%.

Korelasi Konsentrasi Etanol 5% Pada Bahan Bakar Gasolin Terhadap Performa, dan Emisi Gas Buang Mesin Bensin 150cc

“…efisiensi termal merupakan indikator kemampuan bahan bakar untuk menghasilkan energi pemberi daya yang dibutuhkan mesin [11]. Propertis oksigen, dan angka oktan yang tinggi mendorong penurunan emisi CO, HC, dan NOx [12]. Hasil yang sama juga diperoleh Ismail dkk.…”

“…Besarnya daya tahan dari sirip stator diukur melalui sensor pembebanan (13) yang diintegrasikan melalui display (12) sehingga gaya pembebanan dapat terbaca secar akurat dan valid. Adapun emisi produk hasil pembakaran diukur menggunakan Gas analyzer (10), melalui Stik (9) yang terpasang pada lubang exhaust (8).…”

“…Peningkatan Daya, dan EGT mesin bensin 150cc berkorelasi dengan tingginya nilai BTE bahan bakar E5. Faktor lainnya adalah optimalisasi tekanan pembakaran akibat angka oktan etanol yang tinggi [12]; [9]. Konsentrasi etanol 5% pada bahan bakar gasolin p-ISSN: 2087-1627, e-ISSN: 2685-9858 berkorelasi dengan peningkatan BTE sebesar 16,94% pada putaran 1000rpm, sebesar 38,62% pada putaran 2000rpm, dan sebesar 3,02% pada putaran 3000rpm dibandingkan G100.…”