Emission Performance of a Diesel Engine Running on Petroleum Diesel Fuel with Different Vegetable Oil Additives

Author(s):  
V.A. Markov ◽  
S.N. Devyanin ◽  
Sa Bowen
Author(s):  
K. Ashok ◽  
N. Alagumurthi ◽  
C. G. Saravanan

An organic compound, Dioxane, is blended to reduce the viscosity of raw vegetable oil (Mahua). A dilute blend was prepared by mixing with raw vegetable oil (Mahua) and 10% dioxane in volume basis. Tests were conducted on a single cylinder, water cooled, DI diesel engine coupled with the eddy current dynamometer. Emissions like HC, NOX, etc., were measured by using gas analyzer and smoke density was measured by using smoke meter. The cylinder pressure, heat release rate were measured by combustion analyzer. From the experimental investigation, it was observed that operating at a blend ratio of 10% diesel-80% mahua oil-10% Dioxane significantly reduced the HC and NOx emissions when compared to diesel fuel. It was also observed, the variation of break thermal efficiency is almost same to that of diesel fuel. Hence, it can be concluded that raw vegetable oil (mahua) with Dioxane blend could partially replace the diesel, as a fuel.


2012 ◽  
Vol 610-613 ◽  
pp. 1501-1504
Author(s):  
Gui Fu Wu ◽  
Ji Yi Luan ◽  
Yuan Hua Jia ◽  
Dong Hua Jiang

Biodiesel can be made from the esterification with plant or animal fat.It has been being paid more and more attention for its characteristics of non-sulphur, non-arene,higher hexadecane and biodegradablity and renewablity Biodiesel is similar to No.0 diesel in characteristics,so it can be applied to engines directly without changing the structure.This article shows the emission performance of diesel mixed with biodiesel fuel which in different proportion,and its CO, HC and smoking exhaust have been decreased greatly,then NOx increase slightly,while the fuel-consumption ratio remains stable(when on full load condition,5%, 15% and25% of hybrid fuel compared with pure diesel fuel,HC emission decreases by 15%,33.3% and 83.3%,and carbon smoke emission decreases by 16.25%,51.8% and 63.6%).


Author(s):  
Yaodong Wang ◽  
Neil Hewitt ◽  
Philip Eames ◽  
Shengchuo Zeng ◽  
Jincheng Huang ◽  
...  

Experimental tests have been carried out to evaluate the performance and emissions characteristics of a diesel engine when fuelled by blends of 25% vegetable oil with 75% diesel fuel, 50% vegetable oil with 50% diesel fuel, 75% vegetable oil with 25% diesel fuel, and 100% vegetable oil, compared with the performance, emissions characteristics of 100% diesel fuel. The series of tests were conducted and repeated six times using each of the test fuels. 100% of ordinary diesel fuel was also used for comparison purposes. The engine worked at a fixed speed of 1500 r/min, but at different loads respectively, i.e. 0%, 25%, 50%, 75% and 100% of the engine load. The performance and the emission characteristics of exhaust gases of the engine were compared and analyzed. The experimental results showed that the carbon monoxide (CO) emission from the vegetable oil and vegetable oil/diesel fuel blends were nearly all higher than that from pure diesel fuel at the engine 0% load to 75% load. Only at the 100% engine load point, the CO emission of vegetable oil and vegetable oil/diesel fuel blends was lower than that of diesel fuel. The hydrocarbon (HC) emission of vegetable oil and vegetable/diesel fuel blends were lower than that of diesel fuel, except that 50% of vegetable oil and 50% diesel fuel blend was a little higher than that of diesel fuel. The oxides of nitrogen (NOx) emission of vegetable oil and vegetable oil/diesel fuel blends, at the range of tests, were lower than that of diesel fuel.


Author(s):  
K. Anandavelu ◽  
N. Alagumurthi ◽  
C. G. Saravanan

Light Vegetable oils are a promising alternative among the different diesel fuel alternatives. Using Light Vegetable oils in diesel engine is not a new idea. The Vegetable oils have high energy content. However, the high viscosity, poor volatility and cold flow characteristics of vegetable oils can cause some problems such as severe engine deposits, piston ring sticking and thickening of lubrication oil due to long-term use in diesel engines. Diesel fueled engine have the disadvantage of producing Smoke, Particulate Matter and Nitrogen Oxides and are now subjected to increasingly severe legislation of Emission norms. The required levels are difficult to achieve through engine design alone. Even with high-grade fuels, catalytic systems are being extensively investigated to reduce the diesel engine emission. But there are still difficulties in operation of these. This leads to replacement of diesel fuel with renewable fuels has been set target worldwide to reduce the diesel exhaust pollution. The energy of the light vegetable oil can be released more efficiently with the concept of low heat rejection (LHR) engine. The aim of the study is to apply LHR engine for improving the engine performance and reducing the emission when light vegetable oil (turpentine oil) is used as an alternate fuel. The work was carried out in two stages. In first Stage, the turpentine oil (20, 40, 60, 80 & 100, v/v) with diesel blends used in direct injection diesel engine and to identify best blend with respect to performance and emission. In second Stage, the work has been carried out by the converting direct injection diesel engine in to a LHR engine and the effects of different blends of turpentine oil (20, 40, 60, 80 & 100, v/v) with diesel fuel used in LHR engine and its performance, emission and combustion characteristics have been investigated experimentally. From the experimental investigation, the combination of LHR engine with blended fuels shows the better performance when compared to diesel engine. The smoke density decreases for the diesel engine (without LHR) whereas with the effect of LHR, Oxides of Nitrogen will be reduced and heat release rate also reduces.


2020 ◽  
Vol 17 ◽  
pp. 00077 ◽  
Author(s):  
Alexei Khokhlov ◽  
Anton Khokhlov ◽  
Dmitry Maryin ◽  
Denis Molochnikov ◽  
Ilnar Gayaziev

The article is devoted to the solution of the problem associated with the partial substitution of marketable mineral diesel fuel (DF) with mixed vegetable-mineral (MDF) engine fuel. The bio-component of MDF is vegetable oil, for example, Camelina seed oil. A design option of a dual-fuel feeding system has been proposed, the main component of which is a mixing and metering unit for vegetable oil and mineral diesel fuel which allows electric metering units controlled by an electronic control unit (ECU) to respond to signals from diesel load-speed sensors (crankshaft speed, injector rack position (fuel injection pump)) and temperature gauge of camelina oil, to ensure the feed of mixed diesel fuel with components of different content. The use of mixed diesel fuel based on vegetable oil, containing for example 50 % of mineral commercial fuel and 50 % of camelina oil, makes it possible with a slight decrease in the effective power (not more than 6 %) and some increase in the specific effective consumption of mixed fuel (up to 14 %) to save 50 % of fuel of petroleum origin, as well as to reduce the smoke opacity of exhaust gases by 17–20 % and reduce the content of carbon oxide by 35–40 % compared with the work of a diesel engine on commercial mineral diesel fuel.


2012 ◽  
Vol 608-609 ◽  
pp. 275-280
Author(s):  
Yun Xue ◽  
Hongwei Liu ◽  
Wu Quan Liu

As a kind of renewable resource, biodiesel can relieve the shortage of oil resources. This paper tests the emission performance of biodiesel fueled on 4102ZL diesel engine and makes a contrastive analysis with the emissions of 0# diesel fuel. The test result shows improvement of varying degrees in the emission indexes of the engine fueled with B100 soybean biodiesel.


Author(s):  
Patrick A. Caton ◽  
Sherry A. Williams ◽  
Richard A. Kamin ◽  
Dianne Luning-Prak ◽  
Leonard J. Hamilton ◽  
...  

A vegetable oil from algae has been processed into a Hydrotreated Renewable Diesel (HRD) fuel. This HRD fuel was tested in an extensively instrumented legacy military diesel engine along with conventional Navy diesel fuel. Both fuels performed well across the speed-load range of this HMMWV engine. The high cetane value of the HRD (77 v. 43) leads to significantly shorter ignition delays with associated longer combustion durations and modestly lower peak cylinder pressures as compared to diesel fuel operation. Both brake torque and brake fuel consumption are better (5–10%) with HRD due to the cumulative IMEP effect with moderatly longer combustion durations. Carbon dioxide emmisions are considerably lower with HRD due to the improved engine efficiency as well the more advantageous hydrogen-carbon ratio of this HRD fuel.


2020 ◽  
Vol 1 (5) ◽  
pp. 42-50
Author(s):  
Godwin K. Ayetor ◽  
Joseph Parbey ◽  
Gabriel Osei

This works considered the possibility of using raw palm kernel oil as an alternative to petroleum diesel fuel in a VW engine. At present, very little results on engine durability tests of palm kernel oil use as a fuel has been recorded in literature. A Four-stroke indirect injection diesel engine with capacity of 314,280x 10³mm³ and compression ratio 20.1:1 with constant water cooler was used for the investigation. The engine used for the experimentation is an indirect diesel engine, which is normally the type installed on agricultural engines. The engine was run alternatively for 100 hours on petroleum diesel and palm kernel oil respectively. After the durability test, sample of the lubricating oil was collected and sent for laboratory test. Viscosity, additives and metallic debris was analysed during the laboratory test for both fuel cases to determine wear. Visual inspection was also carried out to determine the state of the engine before and after each run. The engine run with petroleum diesel fuel was compared with that of the engine with palm kernel oil based on their fuel supply system and the lubricating oil analysis. The results showed that raw palm kernel oil can be used as a substitute to petroleum diesel in an indirect diesel engine without any significant damage. In terms wear, the vegetable oil even showed better performance due to its high lubricity compared with petroleum diesel fuel. It is recommended that a heating system be installed on the engine to run on palm kernel oil. Keywords: palm kernel oil; raw vegetable oil; straight vegetable oil; durability; lubrication oil.


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