Investigation and Optimization of Diesel Engine Outputs under Undi Biodiesel-Diesel Strategies

2021 ◽  
pp. 1-23
Author(s):  
Pravin Ashok Madane ◽  
Subrata Bhowmik ◽  
Rajsekhar Panua ◽  
P. Sandeep Varma ◽  
Abhishek Paul
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Thermal Efficiency ◽  
Operating Conditions ◽  
Oxides Of Nitrogen ◽  
Brake Thermal Efficiency ◽  
Trade Off ◽  
Unburned Hydrocarbon ◽  
The Impact

Abstract The present investigation accentuates the impact of Undi biodiesel blended Diesel on combustion, performance, and exhaust fume profiles of a single-cylinder, four-stroke Diesel engine. Five Undi biodiesel-Diesel blends were prepared and tested at four variable loads over a constant speed of 1500 (±10) rpm. The Undi biodiesel incorporation to Diesel notably improves the in-cylinder pressure and heat release rate of the engine. The higher amount of Undi biodiesel addition enhances the brake thermal efficiency and brake specific energy consumption of the engine. In addition, the Undi biodiesel facilitates to reduce the major pollutants, such as brake specific unburned hydrocarbon, brake specific carbon monoxide, and brake specific particulate matter emissions with slightly higher brake specific oxides of nitrogen emissions of the engine. To this end, a trade-off study was introduced to locate the favorable Diesel engine operating conditions under Undi biodiesel-Diesel strategies. The optimal Diesel engine outputs were found to be 32.65% of brake thermal efficiency, 1.21 g/kWh of brake specific cumulated oxides of nitrogen and unburned hydrocarbon, 0.94 g/kWh of brake specific carbon monoxide, and 0.32 g/kWh of brake specific particulate matter for 50% (by volume) Undi biodiesel share blend at 5.6 bar brake mean effective pressure with a relative closeness value of 0.978, which brings up the pertinence of the trade-off study in Diesel engine platforms.

STUDI PENENTUAN KOMPOSISI OPTIMUM CAMPURAN BAHAN BAKAR BIODIESEL–PETRODIESEL

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Soni S. Wirawan dkk
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Cetane Number ◽  
Price Policy ◽  
Oxides Of Nitrogen ◽  
Fuel Price ◽  
Biodiesel Blend

Biodiesel is a viable substitute for petroleum-based diesel fuel. Its advantages are improved lubricity, higher cetane number and cleaner emission. Biodiesel and its blends with petroleum-based diesel fuel can be used in diesel engines without any signifi cant modifi cations to the engines. Data from the numerous research reports and test programs showed that as the percent of biodiesel in blends increases, emission of hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM) all decrease, but the amount of oxides of nitrogen (NOx) and fuel consumption is tend to increase. The most signifi cant hurdle for broader commercialization of biodiesel is its cost. In current fuel price policy in Indonesia (especially fuel for transportation), the higher percent of biodiesel in blend will increase the price of blends fuel. The objective of this study is to assess the optimum blends of biodiesel with petroleum-based diesel fuel from the technically and economically consideration. The study result recommends that 20% biodiesel blend with 80% petroleum-based diesel fuel (B20) is the optimum blend for unmodifi ed diesel engine uses.Keywords: biodiesel, emission, optimum, blend

Experimental Investigations of Porosity, Diameter and Length of Ceramic Diesel Particulate Filter (DPF)

2009 ◽  
Author(s):  
Nishikant V. Deshpande ◽  
Suhas C. Kongre ◽  
Piyush N. Deshpande ◽  
Rajan Singh
Keyword(s):  
Particulate Matter ◽  
Diesel Engine ◽  
Power Plant ◽  
Thermal Efficiency ◽  
Research Work ◽  
Back Pressure ◽  
Diesel Particulate ◽  
Brake Thermal Efficiency ◽  
Particulate Filters ◽  
Brake Power

Diesel engine is the most efficient power plant among all known types of internal combustion engines. The Diesel engine is a major candidate to become the power plant of the future. Environmental benefits of Diesel such as low green house gas emissions are balanced by growing concern with emission of Nitrogen oxide (NOx) and Diesel Particulates (PM). The concern over Diesel particulate has increased in recent year because of health concerns. The objective of this research work is to identify the possibility of development of foam type diesel particulate filters (DPF) with indigenous ceramic materials which are easily available and cheaper. While developing the foam type diesel particulate filters, the main aim is to develop required porous structure for DPF with substantial strength, with low back pressure to minimize loss of engine performance, and with high trapping efficiency to reduce the particulate matter. The objective of this research work is also to investigate the effect of new developed filters without any regeneration arrangement and without any control or monitoring system, on the reduction of dry particulate matter and on the performance of diesel engine in terms of parameters like smoke density, back pressure, brake thermal efficiency and brake power. Use of DPF reduces smoke density with back pressure in acceptable limit. Parameters like brake power loss, increase in brake specific fuel consumption and decrease in brake thermal efficiency are caused by increased engine back pressure created by installation of the DPF system. This power penalty is within permissible limits, but can be further reduced by incorporating a regeneration system.

Heavy-Duty Diesel Emissions, Fifty Years: 1960–2010

2002 ◽  
Author(s):  
David F. Merrion
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Diesel Emissions ◽  
Gaseous Emissions ◽  
Oxides Of Nitrogen ◽  
Heavy Duty ◽  
Emission Regulations ◽  
Consent Decrees ◽  
Heavy Duty Diesel

Exhaust emissions from heavy-duty diesel engines have been legislated since the 1960’s and continue until 2010. Smoke emissions continue to be controlled but exhaust odor regulations were never promulgated. Gaseous emissions (oxides of nitrogen, carbon monoxide, hydrocarbons) were not regulated until 1973 and particulate matter first regulated in 1988. Emission regulations have been through several periods of cooperation between regulators and manufacturers but there have also been periods of conflict and lawsuits. The most recent issues are with the October 2002 requirements of the Consent Decrees signed by seven diesel engine manufacturers and USEPA/US DOJ/CARB. Also the 2007/2010 regulations are under review.

scholarly journals Effectiveness of oxygen enriched hydrogen-HHO gas addition on DI diesel engine performance, emission and combustion characteristics

2014 ◽  
Vol 18 (1) ◽  
pp. 259-268 ◽  
Author(s):  
S.R. Premkartikkumar ◽  
K. Annamalai ◽  
A.R. Pradeepkumar
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Diesel Engine ◽  
Engine Performance ◽  
Water Electrolysis ◽  
Combustion Characteristics ◽  
Flow Rates ◽  
Brake Thermal Efficiency ◽  
Unburned Hydrocarbon ◽  
Di Diesel Engine

Nowadays, more researches focus on protecting the environment. Present investigation concern with the effectiveness of Oxygen Enriched hydrogen- HHO gas addition on performance, emission and combustion characteristics of a DI diesel engine. Here the Oxygen Enriched hydrogen-HHO gas was produced by the process of water electrolysis. When potential difference is applied across the anode and cathode electrodes of the electrolyzer, water is transmuted into Oxygen Enriched hydrogen-HHO gas. The produced gas was aspirated into the cylinder along with intake air at the flow rates of 1 lpm and 3.3 lpm. The results show that when Oxygen Enriched hydrogen-HHO gas was inducted, the brake thermal efficiency of the engine increased by 11.06%, Carbon monoxide decreased by 15.38%, Unburned hydrocarbon decreased by 18.18%, Carbon dioxide increased by 6.06%, however, the NOX emission increased by 11.19%.

scholarly journals Emission characterization of diesel engine run on coconut oil biodiesel its blends and diesel

2016 ◽  
Vol 20 (2) ◽  
pp. 303-306
Author(s):  
Nicholas A. Musa ◽  
Georgina M. Teran ◽  
Saraki A. Yaman
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Environmental Pollution ◽  
Coconut Oil ◽  
Nox Emission ◽  
Oxides Of Nitrogen ◽  
Biodiesel Blends

The use of biodiesel in running diesel has been called for, with a view to mitigating the environmental pollution, depletion, cost and scarcity associated with the use diesel in running diesel engine. So the need to characterize the emissions from these biodiesel, cannot be overemphasized, hence this paper presents the evaluation of the emissions of particulate matter (PM), carbon monoxide(CO), hydrocarbon(HC) and oxides of nitrogen (NOX) from diesel engine run on coconut oil biodiesel, its blends and diesel for comparison. The result of the evaluation showed that NOX emission increased with increase in percentage of the biodiesel in the blend, while PM, CO, HC decreased with increase in the percentage biodiesel in the blend. In comparison with diesel, diesel has the least emission of NOX and the highest emission of PM, CO and HC.Keywords: Diesel engine, diesel, coconut oil biodiesel, blends, emissions

THE EFFECT OF ETHANOL, PETROL AND RAPESEED OIL BLENDS ON DIRECT INJECTION DIESEL ENGINE PERFORMANCE AND EXHAUST EMISSIONS

Transport ◽  
2010 ◽  
Vol 25 (2) ◽  
pp. 116-128 ◽  
Author(s):  
Gvidonas Labeckas ◽  
Stasys Slavinskas
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Thermal Efficiency ◽  
Rapeseed Oil ◽  
Direct Injection ◽  
Engine Performance ◽  
Maximum Torque ◽  
Brake Thermal Efficiency ◽  
Brake Mean Effective Pressure ◽  
Smoke Opacity

The article deals with the testing results of a four stroke four cylinder, DI diesel engine operating on pure rapeseed oil (RO) and its 2.5vol%, 5vol% and 7.5vol% blends with ethanol (ERO) and petrol (PRO). The purpose of this study is to examine the effect of ethanol and petrol addition to RO on blend viscosity, percentage changes in brake mean effective pressure (bmep), brake specific fuel consumption (bsfc), the brake thermal efficiency (çe) of a diesel engine and its emission composition, including NO, NO2, NOX, CO, CO2, HC and the smoke opacity of exhausts. The addition of 2.5, 5 and 7.5vol% of ethanol and the same percentage of petrol into RO, at a temperature of 20 °C, diminish the viscosity of the blends by 9.2%, 21.3%, 28.3% and 14.1%, 24.8%, 31.7% respectively. Heating biofuels up to a temperature of 60 °C, diminishes the kinematic viscosity of RO, blends ERO2.5–7.5 and PRO2.5–7.5 4.2, 3.9–3.8 and 3.9–3.7 times accordingly. At a speed of 1400–1800 min‐1, bmep higher by 1.3% if compared with that of RO (0.772–0.770 MPa) ensures blend PRO2.5, whereas at a rated speed of 2200 min‐1 , bmep higher by 5.6–2.7% can be obtained when fuelling the loaded engine, ë = 1.6, with both PRO2.5–5 blends. The bsfc of the engine operating on blend PRO2.5 at maximum torque and rated power is respectively 3.0% and 5.5% lower. The highest brake thermal efficiency at maximum torque (0.400) and rated power (0.415) compared to that of RO (0.394) also suggests blend PRO2.5. The largest increase in NOXemissions making 1907 ppm (24.8%) and 1811 ppm (19.6%) compared to that of RO was measured from a more calorific blend PRO7.5 (9.99% oxygen) at low (1400 min‐1) and rated (2200 min‐1) speeds. The emission of carbon monoxide from blends ERO2.5–5 throughout the whole speed range runs lower from 6.1% to 32.9% and the smoke opacity of the fully loaded engine changes from 5.1% which is a higher to 46.4% which is a lower level if compared to the corresponding data obtained using pure RO. The CO2 emissions of carbon monoxide and the temperature of the exhausts generated by the engine running at a speed of 2200 min‐1 diminish from 7.8 vol% to 6.3vol% and from 500 °C to 465 °C due to the addition of 7.5vol% of ethanol to RO.

scholarly journals Effect of three and five holes nozzle for the improvement of thermal efficiency and emission characters of DI-CI diesel engine with lemongrass biodiesel as alternate fuel

2021 ◽  
pp. 357-357
Author(s):  
Kolla Kotaiah ◽  
P. Periyasamy ◽  
M. Prabhahar ◽  
S. Prakash ◽  
Sangeetha Krishnamoorthi
Keyword(s):  
Diesel Engine ◽  
Thermal Efficiency ◽  
Fuel Injection ◽  
Load Condition ◽  
Vital Role ◽  
Brake Thermal Efficiency ◽  
Performance And Emissions ◽  
Nozzle Hole ◽  
Biodiesel Blend ◽  
The Impact

The performance and emissions characters of diesel engine behavior depend largely on several criteria, fuel injection nozzle plays a vital role in the proper combustion of diesel engines. This research analyzes the impact of a nozzle hole configuration on the features of a biodiesel-fuelled diesel engine. Therefore, the causes are dependent on the modification that the nozzle hole was selected from three-hole and five-hole nozzles, while the engine characteristics of the lemongrass biodiesel blend with diesel were examined. Lemongrass Biodiesel with 20 percent blend (LGB B20) has been investigated experimentally with different engine loads with respect to brake power, three hole, and five-hole nozzles. The experimental investigation showed an improvement in peak i.e. highest heat release rate of 12.5% for three and five-hole nozzle and brake specific fuel consumption of 15% is increased in single hole nozzle and it is observed it?s diminished in three and five holed nozzle. Further, the brake thermal efficiency is increased in the five-hole nozzle in comparison to the three hole nozzle at full load condition. Furthermore emission characteristics like HC, CO, and smoke are decreased with an increase in the number of nozzles, at the penalty of increase in NOx emissions has been observed.

Experimental Investigation of Performance and Emissions Characteristics of a Diesel Engine with Pongamia Biodiesel and Diesel Blends

2018 ◽  
Vol 877 ◽  
pp. 397-402
Author(s):  
R. Thirunavukkarasu ◽  
R. Tamilselvan ◽  
T. Karthickmunisamy ◽  
M. Veeramanikandan ◽  
Dhandapani Sathish
Keyword(s):  
Experimental Investigation ◽  
Carbon Monoxide ◽  
Energy Consumption ◽  
The Other ◽  
Oxides Of Nitrogen ◽  
Brake Thermal Efficiency ◽  
Biodiesel Blends ◽  
Unburned Hydrocarbon ◽  
Performance And Emissions ◽  
Ci Engines

Biodiesel has been recognized as a possible alternative fuel for CI engines because use of biodiesel can reduce petroleum diesel consumption as well as engine out emissions. Out of many biodiesel derived from various resources, this biodiesel derived from Pongamia pinnata Oil (PPO) can be prepared economically using usual transesterification process. In the present study, in-depth research and comparative study of blends of biodiesel made from PPO and diesel is carried out to bring out the benefits of its extensive usage in CI engines. The experimental results of the study reveal that the PPO biodiesel has similar characteristics to that of diesel. The brake thermal efficiency, carbon monoxide, unburned hydrocarbon are observed to be lower in the case of PPO biodiesel blends than diesel. On the other hand specific fuel energy consumption and oxides of nitrogen of PPO biodiesel blends are found to be higher than diesel.

Decreasing hydrocarbon and carbon monoxide emissions of a natural-gas engine operating in the quasi-homogeneous charge compression ignition mode at low loads

2005 ◽  
Vol 219 (9) ◽  
pp. 1125-1131 ◽  
Author(s):  
Su Ling ◽  
Zhou Longbao ◽  
Liu Shenghua ◽  
Zhong Hui
Keyword(s):  
Carbon Monoxide ◽  
Natural Gas ◽  
Thermal Efficiency ◽  
Homogeneous Charge Compression Ignition ◽  
Compression Ignition ◽  
Brake Thermal Efficiency ◽  
Pilot Fuel ◽  
Cng Engine ◽  
Standard Mode ◽  
Homogeneous Charge

Experimental studies have been carried out on decreasing the hydrocarbon (HC) and carbon monoxide (CO) emissions of a compressed natural-gas (CNG) engine operating in quasi-homogeneous charge compression ignition (QHCCI) mode at low loads. The effects of three technical approaches including partial gas cut-off (PGC), intake air throttling, and increasing the pilot fuel quantity on emissions and the brake thermal efficiency of the CNG engine are studied. The results show that HC and CO emissions can be reduced with only a small penalty on the brake thermal efficiency. An increase in the brake thermal efficiency and reductions in HC and CO emissions can be simultaneously realized by increasing the pilot fuel quantity. It is also indicated from experiments that the HC and CO emissions of the engine can be effectively reduced when using intake air throttling and increasing the pilot fuel quantity are both adopted. However, nitrogen oxide (NOx) emissions increase with increase in the throttling and the pilot fuel quantity. Under PGC conditions, NOx emissions are lower than those in the standard mode; however, they increase and exceed the values in the standard mode in increases in the load and natural-gas supply.

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