scholarly journals Experimental and Theoretical Performance Analysis of Emission and Combustion Characteristics of Diesel Engine using Bio Diesel as an Alternate Fuel

2020 ◽  
Vol 10 (2) ◽  
pp. 89-95
Keyword(s):  
Diesel Engine ◽  
Vegetable Oil ◽  
Experimental Comparison ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Single Cylinder ◽  
Combustion Properties ◽  
Cylinder Compression ◽  
Ac Induction Motor ◽  
A Current

In this study the biodiesel derived from different vegetable oil esters (VOE) including Jatropha and Karanja is compared with diesel. The efficiency, emission and combustion properties of different VOE in single cylinder compression ignition engine were compared with Diesel. The main objective of our study is the theoretical and experimental comparison of the efficiency, emission and combustion properties of biodiesel using Jatropha and Karanja esters with diesel. Vegetable oil from Jatropha and Mahua was transesterified and used in a turbocharged engine water-cooled single-cylinder Diesel Engine attached to an ac induction motor with a current of 0 to 5kw. Brake thermal efficiency is decreased by around 1.4 percent for Jatropha, 2.0 percent for Karanja compared to Diesel. Brake specific fuel consumption improved by 0.2 percent for Jatropha and 3.4 percent for Karanja compared to Diesel.

Emission and Performance Characteristics of a Single Cylinder Compression Ignition Engine Operating on Esterified Rice Bran Vegetable Oil and Diesel Fuel

2002 ◽  
Author(s):  
A. M. Nagaraj ◽  
G. P. Prabhu Kumar
Keyword(s):  
Vegetable Oil ◽  
Rice Bran ◽  
Diesel Fuel ◽  
Combustion Process ◽  
Alternative Fuel ◽  
Operating Conditions ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Single Cylinder ◽  
Cylinder Compression

The alkyl monoesters of fatty acids derived from vegetable oils or animal fats, known as bio diesel, are attracting considerable interest as an alternative fuel for diesel engines. Biodiesel-fueled engines produce less carbon monoxide, unburnt hydrocarbons, and particulate emissions than diesel-fueled engines. However, bio diesel has different chemical and physical properties than diesel fuel, including a larger bulk modulus and a higher cetane number. Some of these properties can be affected by oxidation of the fuel during storage. These changes can affect the timing of the combustion process and potentially increase the emissions of oxides of nitrogen. The objective of this study was to evaluate the effect of injection and combustion timing on bio diesel combustion and exhaust emissions. Bio diesel fuel is a clean burning fuel made from natural renewable sources such as rice bran vegetable oil. Bio diesel operates in compression ignition engines similar to diesel fuel. It can be burnt in any standard unmodified diesel engine blended with 20% to 30% bio diesel with diesel. Rice bran oil can be converted into bio diesel fuel as ethyl ester by transestirification. Experimental investigations have been carried out using bio diesel as an alternative fuel in single cylinder, compression ignition engine under varying operating conditions and by varying the injection timings with respect to TDC. In this work various parameters such as brake power, peak pressure rise, and emissions during combustion process under varying operating conditions with diesel, bio diesel, bio diesel blends were measured. The exhaust emissions from the engine were measured using exhaust gas analyzer.

scholarly journals Thermal Performance of Compression Ignition Engine Using High Content Biodiesels: A Comparative Study with Diesel Fuel

2021 ◽  
Vol 13 (14) ◽  
pp. 7688
Author(s):  
Asif Afzal ◽  
Manzoore Elahi M. Soudagar ◽  
Ali Belhocine ◽  
Mohammed Kareemullah ◽  
Nazia Hossain ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fatty Acid Content ◽  
Engine Performance ◽  
Waste Cooking Oil ◽  
Gas Temperature ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Acid Oil ◽  
Exhaust Gas Temperature

In this study, engine performance on thermal factors for different biodiesels has been studied and compared with diesel fuel. Biodiesels were produced from Pongamia pinnata (PP), Calophyllum inophyllum (CI), waste cooking oil (WCO), and acid oil. Depending on their free fatty acid content, they were subjected to the transesterification process to produce biodiesel. The main characterizations of density, calorific range, cloud, pour, flash and fire point followed by the viscosity of obtained biodiesels were conducted and compared with mineral diesel. The characterization results presented benefits near to standard diesel fuel. Then the proposed diesel engine was analyzed using four blends of higher concentrations of B50, B65, B80, and B100 to better substitute fuel for mineral diesel. For each blend, different biodiesels were compared, and the relative best performance of the biodiesel is concluded. This diesel engine was tested in terms of BSFC (brake-specific fuel consumption), BTE (brake thermal efficiency), and EGT (exhaust gas temperature) calculated with the obtained results. The B50 blend of acid oil provided the highest BTE compared to other biodiesels at all loads while B50 blend of WCO provided the lowest BSFC compared to other biodiesels, and B50 blends of all biodiesels provided a minimum % of the increase in EGT compared to diesel.

Experimental Evaluation of Compression Ignition Engine Fueled with Cashew Nut Shell Liquid Diesel Blend with the Effect of Various Injection Pressures

2015 ◽  
Vol 787 ◽  
pp. 717-721
Author(s):  
Sangeetha Krishnamoorthy ◽  
K. Rajan ◽  
K.R. Senthil Kumar ◽  
M. Prabhahar
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Injection Pressure ◽  
Cashew Nut Shell Liquid ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Full Load ◽  
Cashew Nut ◽  
Cashew Nut Shell

This paper investigates the performance and emission characteristics of 20% cashew nut shell liquid (CNSL)-diesel blend (B20) in a direct injection diesel engine. The cashew nut shell liquid was prepared by pyrolysis method. The test was conducted with various nozzle opening pressures like 200 bar, 225 bar and 250 bar at different loads between no load to full load. The results showed that the brake thermal efficiency was increased by 2.54% for B20 with 225 bar at full load. The CO and smoke emissions were decreased by 50% and 14% respectively and the NOx emission were decreased slightly with 225 bar injection pressure compared with 200 bar and 250 bar at full load. On the whole, it is concluded that the B20 CNSL blend can be effectively used as a fuel for diesel engine with 225 bar injection pressure without any modifications.

Sign in / Sign up

Export Citation Format

Share Document