Investigations on Exhaust Emissions of a Low Heat Rejection Diesel Engine with Alternative Fuels

2021 ◽  
pp. 126-139
Author(s):  
M. V. S. Murali Krishna ◽  
V. V. R. Seshagiri Rao ◽  
R. P. Chowdary ◽  
N. Janardhan ◽  
N. Venkateswara Rao ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Alternative Fuels ◽  
Exhaust Emissions ◽  
Heat Rejection

Utilization of Waste Hydraulic Oil as Fuel in Diesel Engine

2012 ◽  
Vol 518-523 ◽  
pp. 3263-3266
Author(s):  
Jazair Yahya Wira ◽  
Tan Wee Choon ◽  
Samion Syahrullail ◽  
Noge Hirofumi ◽  
Mazlan Said ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Fuels ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Hydraulic Oil ◽  
Span 80 ◽  
Co Emission ◽  
Conventional Diesel Fuel ◽  
Test Fuel

Production of alternative diesel fuel has been increasing drastically in many Asian countries. Since the reduction of petroleum production by Organization of Petroleum Exporting Countries (OPEC), the research on alternative fuel for diesel engine has gain interest. The target of this project is to substitute some percentage usage of conventional diesel fuel with waste substance without compromising on engine performance and exhaust emissions. This study has produced two type of alternative fuels. A test fuel consisting 30% of water into diesel fuel with the existence of additive or emulsifier (span 80) is called as DW Emul. Another test fuel which is named as DHW Emul produced by blending 30% of water into a mixture consisting of 20% of waste hydraulic oil and 80% of diesel fuel with the existence of span 80. The engine performance and exhaust emissions of DW Emul and DHW Emul are measured and has been compared with the conventional diesel fuel. A 600cc single cylinder direct injection diesel engine was used. The experiment was conducted at 1500 rpm with variable engine loads. Results show that DHW Emul and DW Emul has higher brake specific fuel consumption (BSFC). However, by considering the total use of diesel fuel contained in DW Emul, the quantity was lower at all loads. The same goes for DHW Emul at low load but deteriorate at high load which show slightly higher compared with of using 100% conventional diesel fuel. DHW Emul has suppressed CO emission that is usually high of using emulsion fuel to the level similar to conventional diesel fuel. NOx and Smoke emissions for DHW Emul are lower than conventional diesel. The use of DHW Emul can give significant reduction of NOx and Smoke emissions without deterioration of CO emission.

Effect of alternative fuels on exhaust emissions during diesel engine operation with matched combustion phasing

Fuel ◽  
2010 ◽  
Vol 89 (2) ◽  
pp. 438-456 ◽  
Author(s):  
Octavio Armas ◽  
Kuen Yehliu ◽  
André L. Boehman
Keyword(s):  
Diesel Engine ◽  
Alternative Fuels ◽  
Exhaust Emissions ◽  
Engine Operation

Experimental Investigations on DI Diesel Engine With Low Heat Rejection Combustion Chamber With Waste Fried Vegetable Oil and its Biodiesel

2015 ◽  
Author(s):  
Raavi Peraiah Chowdary ◽  
Maddali V. S. Murali Krishna ◽  
T. Kishen Kumar Reddy ◽  
D. Srikanth ◽  
P. V. Krishna Murthy ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Combustion Chamber ◽  
Vegetable Oil ◽  
Alternative Fuels ◽  
Air Gap ◽  
Operating Conditions ◽  
Injection Timing ◽  
Heat Rejection ◽  
Improved Performance ◽  
Ci Engines

Biodiesels derived from vegetable oils present a very promising alternative fuels for diesel fuel, since they have numerous advantages compared to fossil fuels. However crude vegetable oil and biodiesel have high viscosity and low volatility causing combustion problems in CI engines, call for engine with hot combustion chamber. Investigations were carried out on single–cylinder, four–stroke, water cooled, 3.68 kW direct injection diesel engine at a speed of 1500 rpm to evaluate the performance of a engine with low heat rejection (LHR) combustion chamber. It consisted of an air gap (3 mm) insulated piston with superni (an alloy of nickel) crown and an air gap (3 mm) insulated liner with superni insert and ceramic coated cylinder head fuelled with different operating conditions (normal temperature and preheated temperature) of waste fried vegetable oil and its biodiesel with varied injection timing and injector opening pressure. Engine with LHR combustion chamber with biodiesel showed improved performance over conventional engine (CE) at 27° bTDC and at optimum injection timing. Biodiesel showed improved performance over crude vegetable oil with engine with both versions of the combustion chamber. Preheated test fuels and increase of injection pressure showed reduction of pollution levels and marginally improved performance over normal test fuels.

Exhaust Emission Reduction of Diesel Engine Fueled with Emulsified Palm Oil Methyl Esters

2014 ◽  
Vol 660 ◽  
pp. 457-461 ◽  
Author(s):  
Amir Aziz ◽  
Wong Chung Siong ◽  
Rizalman Mamat ◽  
Ftwi Yohaness Hagos
Keyword(s):  
Diesel Engine ◽  
Palm Oil ◽  
Emission Reduction ◽  
Alternative Fuels ◽  
Engine Speed ◽  
Methyl Esters ◽  
Water Concentration ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Promising Alternative

An emulsion fuels is one of an alternative method that have been used to reduce exhaust emission from diesel engine. However, there were still not properly explored on the emulsified biodiesel. In this work, the effects of water concentration in palm oil diesel emulsions (POD) [POD is palm oil Methyl esters] on exhaust emissions of a 4-cylinder diesel engine were investigated. The engine speed was set at 2500 rpm and loads at 20, 40 and 60 %. Emulsions were prepared using ultrasound method by mixing POD fuel with 5, 10 and 20 % of water by volume. Results of exhaust emissions for POD and their emulsion were compared with OD fuel. The experimental results show that, the increasing water concentration in POD decrease the NOx and PM simultaneously. POD emulsions is a promising alternative fuels for reducing emissions from diesel engines without any engine modifications.

scholarly journals Performance and exhaust emissions of a diesel engine using diesel nanoemulsions as alternative fuels

2019 ◽  
Vol 28 (2) ◽  
pp. 197-204 ◽  
Author(s):  
M.R. Noor El-Din ◽  
Marwa R. Mishrif ◽  
M.S. Gad ◽  
Mohamed Keshawy
Keyword(s):  
Diesel Engine ◽  
Alternative Fuels ◽  
Exhaust Emissions

scholarly journals Ethanol/Gasoline Blends as Alternative Fuel in Last Generation Spark-Ignition Engines: A Review on CO and HC Engine Out Emissions

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4034
Author(s):  
Paolo Iodice ◽  
Massimo Cardone
Keyword(s):  
Physicochemical Properties ◽  
Alternative Fuels ◽  
Experimental Studies ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
Spark Ignition ◽  
Operating Conditions ◽  
Spark Ignition Engine ◽  
Spark Ignition Engines ◽  
The Impact

Among the alternative fuels existing for spark-ignition engines, ethanol is considered worldwide as an important renewable fuel when mixed with pure gasoline because of its favorable physicochemical properties. An in-depth and updated investigation on the issue of CO and HC engine out emissions related to use of ethanol/gasoline fuels in spark-ignition engines is therefore necessary. Starting from our experimental studies on engine out emissions of a last generation spark-ignition engine fueled with ethanol/gasoline fuels, the aim of this new investigation is to offer a complete literature review on the present state of ethanol combustion in last generation spark-ignition engines under real working conditions to clarify the possible change in CO and HC emissions. In the first section of this paper, a comparison between physicochemical properties of ethanol and gasoline is examined to assess the practicability of using ethanol as an alternative fuel for spark-ignition engines and to investigate the effect on engine out emissions and combustion efficiency. In the next section, this article focuses on the impact of ethanol/gasoline fuels on CO and HC formation. Many studies related to combustion characteristics and exhaust emissions in spark-ignition engines fueled with ethanol/gasoline fuels are thus discussed in detail. Most of these experimental investigations conclude that the addition of ethanol with gasoline fuel mixtures can really decrease the CO and HC exhaust emissions of last generation spark-ignition engines in several operating conditions.

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