Performance Study of Preheated Mustard Oil Methyl Ester on Naturally Aspirated CI Engine

2015 ◽  
Vol 787 ◽  
pp. 761-765 ◽  
Author(s):  
M. Venkata Ramanan ◽  
D. Yuvarajan
Keyword(s):  
Methyl Ester ◽  
Vegetable Oil ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Injection System ◽  
Mustard Oil ◽  
Compression Ignition Engine ◽  
Promising Alternative ◽  
Ci Engine ◽  
Ci Engines

Many studies have confirmed that the use of transesterifed vegetable oil as a fuel in diesel engine has resulted in lesser efficiency and inferior combustion rate when compared with petroleum diesel. Of late research works are being carried out to discover the surplus information on effective utilization of vegetable oil in CI engine as a promising alternative fuel. The present work was aimed to investigate the effect of preheating the transesterified oil just before entering fuel injection system thereby making its physical and chemical properties much closer to diesel fuel. In the present work neat mustard oil methyl ester was preheated to 90°c (MO90) and used in single cylinder, four stroke, naturally aspirated, direct injection compression ignition engine and compared with un heated mustard oil methyl ester (MO) at ambient temperature and petroleum diesel. The effects of fuel preheating on engine performance with mustard oil were clarified. Experiments were conducted with MO90 (Mustard oil methyl ester preheated to 90° C) and MO (Mustard oil methyl ester) and are compared with conventional diesel. The experimental analysis revealed that the BTE (brake thermal efficiency) of an engine was lower and BSFC (brake specific fuel consumption) was higher with unheated mustard oil methyl ester as compared to diesel fuel. However, increase in BTE and reduction in BSFC was observed with increase fuel inlet temperature of methyl ester to 90°C. Thus by preheating the mustard oil methyl ester during the fuel injection can be a good alternate fuel for CI engines in near future.

Emissions Analysis of Preheated Methyl Ester on CI Engine

2015 ◽  
Vol 812 ◽  
pp. 21-25 ◽  
Author(s):  
M. Venkata Ramanan ◽  
D. Yuvarajan
Keyword(s):  
Methyl Ester ◽  
Fuel Injection ◽  
Diesel Emissions ◽  
Injection System ◽  
Mustard Oil ◽  
Compression Ignition Engine ◽  
Additional Information ◽  
Ci Engine ◽  
Engine Emission ◽  
Ci Engines

Numerous research works are carried out to find out the additional information on effective use of vegetable oil in CI engine as a potential alternative fuel. The present work was intended to observe the outcome of preheating the transesterified oil earlier to fuel injection system thus making its properties similar to diesel. In this research mustard oil methyl ester was preheated to 90°c (MME90) and used in compression ignition engine and compared with mustard oil methyl ester (MME) fuelled at ambient temperature and diesel. The impacts of fuel preheating on engine emission with mustard oil were analyzed. Experiments were conducted with MME90 (Mustard oil methyl ester preheated to 90° C) and MME (Mustard oil methyl ester) and compared with diesel. Result confirmed increase in NOx emission for both MME90 and MME comparing diesel. Emissions such as CO, HC and Smoke were found in declining fashion for MME90 comparing MME and petroleum diesel. Preheating the mustard oil methyl ester during the fuel injection can be an exceptional way for using it in CI engines.

scholarly journals By-products from thermal processing of rubber waste as fuel for the internal combustion piston engine

2020 ◽  
Vol 181 (2) ◽  
pp. 11-18
Author(s):  
Mariusz CHWIST ◽  
Michał GRUCA ◽  
Michał PYRC ◽  
Magdalena SZWAJA
Keyword(s):  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Internal Combustion ◽  
Injection System ◽  
Injection Timing ◽  
Piston Engine ◽  
Compression Ignition Engine ◽  
Exhaust Gases

The article presents results of investigation on the combustion of a mixture of oil from pyrolysis of tires and basic fuel in an internal combustion reciprocating piston engine. The tested fuel consisted of: diesel oil and oil from pyrolysis of tires at amount of 10% by volume. The tests were carried out on a single-cylinder naturally aspirated compression-ignition engine. The engine is equipped with a common rail fuel injection system and an electronic control unit that allows changing injection timing. A comparative analysis of pressure-volume charts for the reference fuel, which was diesel, and for a mixture of diesel with the addition of 10% oil from tire pyrolysis was carried out during the study. Injector characteristics for the reference fuel and the mixture were determined. Engine efficiency for both fuels was determined. Unrepeatability of the engine work cycles for the diesel fuel and the tested mixture was calculated. Finally, the share of toxic exhaust components in exhaust gases was analyzed. It was found that pyrolisys oil from tires can be used as additive to regular diesel fuel at amount up to 10%, however, toxic exhaust gases emission was increased.

scholarly journals Research on the effect of diesel fuel injection parameters on the exhaust emissions in the turbocharged CI engine operating on propane

2019 ◽  
Vol 177 (2) ◽  
pp. 180-186
Author(s):  
Sławomir LUFT ◽  
Tomasz SKRZEK
Keyword(s):  
Diesel Fuel ◽  
High Efficiency ◽  
Fuel Injection ◽  
Combustion Process ◽  
Dual Fuel ◽  
Compression Ignition Engine ◽  
Injection Parameters ◽  
Study Results ◽  
Wide Range ◽  
Ci Engine

The article presents results of the studies on the charged, dual-fuel CI compression ignition engine fuelled with propane. The main goal of the studies was to fuel the engine so that the amount of energy provided with propane is possibly highest at the high efficiency, low emission of harmful exhaust constituents and proper combustion. As the studies conducted so far have shown, with the increase of energy from propane we observe crucial changes in the combustion process. As these changes may be a barrier in the further increase of energy, we decided to change the injection parameters of the diesel fuel. The changes introduced allowed for the 70% energetic contribution of gas fuel at the subsequent elimination of unfavourable phenomena. The fuel injection was realized divided into two doses. Both proportions and angle at the beginning of the injection for both doses were variable. The angle at the beginning of injection for the first dose was changed in a wide range and depended on the value of charging pressure. The angle at the beginning of injection for the second dose was changed in a much narrower range, mainly due to very clear changes in the nature of combustion process. The studies have been conducted for three values of charging pressure, namely 200; 400 and 600 [mbar], and also for the naturally aspirated version. Study results have been presented in a form of regulation characteristics for the angle of the beginning of injection of the pilot dose for the chosen charging variants, as well as volume and angle of the beginning of injection for the main dose. The obtained results show that the content of exhaust constituents for the dual-fuel CI engine depends highly on assumed regulations of injection parameters of the fuel dose initiating the ignition, as well as engine charging pressure.

Reduction of Nitric Oxides and Soot by Premixed Fuel in Partial HCCI Engine

2005 ◽  
Vol 128 (3) ◽  
pp. 497-505 ◽  
Author(s):  
Dae Sik Kim ◽  
Myung Yoon Kim ◽  
Chang Sik Lee
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Direct Injection ◽  
Heating System ◽  
Injection System ◽  
Intake Manifold ◽  
Soot Emission ◽  
Nitric Oxides ◽  
Compression Ignition Engine

In order to obtain the reduction effect of NOx and soot emission in a partial homogeneous charge compression ignition engine, premixed fuel was supplied with direct injection diesel fuel. Several additional systems such as a premixed fuel injection system, exhaust gas recirculation (EGR) system, supercharger, and air heating system were equipped in the intake manifold of conventional diesel engine. Premixed fuel with air was compressed and ignited by the directly injected diesel fuel in the combustion chamber at the end of compression stroke. The effect of premixed fuel on combustion and emission characteristics of HCCI diesel engine was investigated experimentally under various conditions of intake air temperature, pressure, and EGR rate. The results showed that in case of the use of gasoline as a premixed fuel, single stage ignition is found, but premixing the diesel fuel accompanies the cool flame prior to the combustion of the directly injected diesel fuel. For the gasoline premixed fuel, both NOx and soot can be reduced by the increase of premixed ratio simultaneously. However, for the diesel premixed fuel, the increase of premixed ratio does not have a significant effect in reducing the soot emission.

scholarly journals Pyrolysis oil combustion in the CI engine

2019 ◽  
Vol 179 (4) ◽  
pp. 126-131
Author(s):  
Mariusz CHWIST ◽  
Karol GRAB-ROGALIŃSKI ◽  
Stanisław SZWAJA
Keyword(s):  
Diesel Fuel ◽  
Combustion Process ◽  
Calorific Value ◽  
Injection System ◽  
Pyrolysis Oil ◽  
Compression Ignition Engine ◽  
Common Rail Injection System ◽  
Biomass Processing ◽  
Common Rail Injection ◽  
Ci Engine

Pyrolysis oil obtained from thermal biomass processing (torrefaction and pyrolysis) was used as an additional fuel for the compression-ignition engine equipped with a classic (non-common rail) injection system. The basic fuel used to the engine was regular diesel fuel. The tests were carried out with two content of pyrolysis oil in diesel fuel as follows: 10 and 20% by volume. In addition, the combustion process was investigated in the engine operating only on pyrolysis oil. The test results were based on a comparative analysis, where the diesel fuel was used as the reference fuel. The obtained results indicate that is a real possibility of co-combustion of pyrolysis oil with diesel fuel in the CI engine. On the other hand, a decrease in engine power resulting from the lower calorific value of pyrolysis oil and a greater unrepeatability of engine consecutive work cycles were observed.

Comprehensive Study on the Effect of CuO Nano Fluids Prepared Using One-Step Chemical Synthesis Method on the Behavior of Waste Cooking Oil Biodiesel in Compression Ignition Engine

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Ramanathan Velmurugan ◽  
Jaikumar Mayakrishnan ◽  
S. Induja ◽  
Selvakumar Raja ◽  
Sasikumar Nandagopal ◽  
...  
Keyword(s):  
Chemical Synthesis ◽  
Vegetable Oil ◽  
Diesel Fuel ◽  
Synthesis Method ◽  
Waste Cooking Oil ◽  
Compression Ignition ◽  
Cooking Oil ◽  
One Step ◽  
Ci Engine ◽  
The Impact

Vegetable oil is considered as one among the promising alternatives for diesel fuel as it holds properties very close to diesel fuel. However, straight usage of vegetable oil in compression ignition (CI) engine resulted in inferior performance and emission behavior. This can be improved by modifying the straight vegetable oil into its esters, emulsion, and using them as a fuel in CI engine showcased an improved engine behavior. Waste cooking oil (WCO) is one such kind of vegetable oil gained a lot of attraction globally as it is generated in a large quantity locally. The present investigation aims at analyzing various parameters of single cylinder four stroke CI engine fueled with waste cooking oil biodiesel (WCOB), waste cooking oil biodiesel water emulsion (WCOBE) while the engine is operated with a constant speed of 1500 rpm. Furthermore, an attempt is made to study the impact of nanofluids in the behavior of the engine fueled with WCOB blended with nanofluids (WCOBN50). This work also explored a novel method of producing nanofluids using one-step chemical synthesis method. Copper oxide (CuO) nanofluids were prepared by the above mentioned method and blended with waste cooking oil biodiesel (WCOBN50) using ethylene glycol as a suitable emulsifier. Results revealed that brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC) of WCOBN50 are significantly improved when compared to WCOB and WCOBE. Furthermore, a higher reduction in oxides of nitrogen (NOx), carbon monoxide (CO), hydrocarbon (HC), and smoke emissions were observed with WCOBN50 on comparison with all other tested fuels at different power outputs. It is also identified that one-step chemical synthesis method is a promising technique for preparing nanofluids with a high range of stability.

scholarly journals Exploiting Bayesian networks for fault isolation: A diagnostic case study of diesel fuel injection system

2019 ◽  
Vol 86 ◽  
pp. 276-286 ◽  
Author(s):  
Jinxin Wang ◽  
Zhongwei Wang ◽  
Viacheslav Stetsyuk ◽  
Xiuzhen Ma ◽  
Fengshou Gu ◽  
...  
Keyword(s):  
Bayesian Networks ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Fault Isolation ◽  
Injection System ◽  
Fuel Injection System ◽  
Diesel Fuel Injection
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