scholarly journals Engine Performance and Exhaust Gas Emission of a Gasoline Engine using Ethanol-Gasoline Blended from Bioethanol of DurioZibethinus Seed and SalaccaZalacca

Author(s):  
Leo Van Gunawan
SINERGI ◽  
2019 ◽  
Vol 23 (1) ◽  
pp. 11
Author(s):  
Hadi Pranoto ◽  
Dafit Feriyanto ◽  
Supaat Zakaria

Catalytic converter (CATCO) and its effect on engine performance and exhaust gas temperature became an exciting field in automotive research. In this study purposed to compare existing CATCO which is ceramic and metallic with FeCrAl CATCO that treated with a combination of ultrasonic bath and electroplating technique in 30 minutes holding time (UB+EL 30 min). This study proposed to select an appropriate CATCO that used in a gasoline engine to increase the performance and to reduce the exhaust gas temperature as well as its potential to reduce the exhaust gas emission. Mitsubishi 4G93 conducted this analysis with 1.8 L and 10.5 compression ratio with a variable speed of 100, 2000 and 3000 rpm and different engine load of 10, 20 and 30%. The result shows that the FeCrAl CATCO was more useful to reduce fuel consumption up to 66.42% and increase torque up to 15.79% as well as reduce exhaust gas temperature up to 30.11% as compared to ceramic and metallic CATCO. It can be concluded that FeCrAl CATCO coated by UB+EL 30 min was recommended to increase engine performance and to reduce exhaust gas emission.


2020 ◽  
Vol 9 (2) ◽  
pp. 91
Author(s):  
Abdi Hanra Sebayang ◽  
Husin Ibrahim ◽  
Surya Dharma ◽  
Arridina Susan Silitonga ◽  
Berta Br Ginting ◽  
...  

The depletion of fossil fuels, rising of earth temperatures and declining of air quality are an unavoidable phenomenon today. Bioethanol fuel is one solution to reduce this problem that comes from renewable raw materials. The purpose of this study is to investigate engine performance and exhaust emissions at gasoline engine by using the sorghum seeds bioethanol-pertalite blends with different mixed ratios (10%, 15%, and 20%). The test is performed on a four-stroke gasoline engine without modification. Engine speeds vary from 1000 to 4000 rpm, and properties of the sorghum seeds bioethanol-pertalite blends are measured and analyzed. In addition, engine torque, brake power, brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) as well as carbon monoxide (CO), hydrocarbon (HC), and nitrogen oxide (NOx) emissions are measured. The results show that BSFC decreased while BTE increased for a fuel blends containing 20% bioethanol at 3500 rpm engine speed, with each maximum value of 246.93 g/kWh and 36.28%. It is also found that CO and HC emissions are lower for the sorghum seeds bioethanol-pertalite blends. Based on the research results, it can be concluded that the sorghum seeds bioethanol-pertalite blends can improve engine performance and reduce exhaust gas emissions. Keywords: bioethanol; pertalite; performance engine; exhaust gas emission; alternatif fuel.


2021 ◽  
Vol 1030 ◽  
pp. 149-158
Author(s):  
Abdussalam Khan ◽  
Abu Saleh Ahmed ◽  
Muhammad Khusairy Bakri ◽  
A.N.R. Reddy ◽  
Md. Rezaur Rahman

Biodiesel fuel is biodegradable, Sulphur free, non-toxic and environmentally friendly. Current research focuses on coconut biodiesel production using crude coconut oil. Both one and two step transesterification methods were utilized to analyze the effect of free fatty acid on the transesterification process while the two-step transesterification reported highest yield biodiesel percentage of 84% compared to the one step i.e. 72%. The fuel properties found compatible with standards. The biodiesel blends fueled diesel engine performance tests were performed on diesel engine Water-cooled, four stroke, single cylinder, Direct Injection System (Kubota - RK95-1-NB-RDK). The biofuel blend with 10% of coconut biodiesel and 90% Petro-diesel shown the highest brake horsepower of 8.809KW, engine power of 1.685KW and mechanical efficiency of 15.24%. While in exhaust gas emission analysis, the hydrocarbon and carbon monoxide decrease with the increasing biodiesel blend whereas the nitrogen oxides increased.


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