Methodology for the validation of fuel consumption in diesel engines installed on board military ships, using diesel oil and biodiesel blends

2019 ◽  
Vol 41 (11) ◽  
Author(s):  
S. F. Clume ◽  
C. R. P. Belchior ◽  
R. H. R. Gutiérrez ◽  
U. A. Monteiro ◽  
L. A. Vaz
Keyword(s):  
Fuel Consumption ◽  
Diesel Engines ◽  
Diesel Oil ◽  
Biodiesel Blends

Simulation of Combustion in a DI Diesel Engine Operating on Biodiesel Blends

2011 ◽  
Author(s):  
Keshav S. Varde ◽  
Shubha K. Veeramachineni
Keyword(s):  
Diesel Engine ◽  
Simulation Model ◽  
Fuel Consumption ◽  
Diesel Engines ◽  
Engine Performance ◽  
Experimental Investigations ◽  
Oxides Of Nitrogen ◽  
Biodiesel Blends ◽  
Di Diesel Engine ◽  
The Impact

There has been considerable interest in recent years in using blends of petroleum diesel and biodiesels in diesel engines. Some of the interests arise in making use of renewable fuels, or in reducing dependency on imported fossil fuels and, in some cases, to provide economic boost to agricultural industry. It is believed that substitution of a small amount of biodiesel for petroleum diesel can reduce the import of fuel and help in trade balance. Biodiesels, whether derived from vegetable oils or animal fat, have many properties that align with those of petroleum diesel. This makes biodiesel a good candidate for blending it in small quantities with petroleum diesel. Studies have shown biodiesel blends to work well in diesel engines. However, experimental investigations of biodiesel blends have shown some discrepancies in engine thermal efficiency and emissions of NOx. A combustion simulation model for diesel engine may help to understand some of the differences in engine performance when different fuels are used. This paper deals with an existing simulation model that was applied to a diesel engine operating on biodiesel blends. The model was a modified version of GT-Power that was specifically modified to fit the test engine. The model was calibrated using a single cylinder, naturally aspirated, DI diesel engine operating on ultra-low sulfur (ULSD) diesel. It was used to predict engine performance when operating on different blends of soy biodiesel and ULSD. The simulation utilized detailed physical and chemical properties of the blends to predict cylinder pressures, fuel consumption, and emissions of oxides of nitrogen (NOx). Comparison between predicted and experimental values showed good correlations. The predicted trends in fuel consumption, emissions of NOx and smoke showed comparable trends. The model allows the user to change fuel properties to assess the impact of variations in blend composition on exhaust emissions. This paper discusses comparisons between the predicted and experimental results and how fuel composition can possibly impact NOx emissions.

scholarly journals Aplikasi Penggunaan Serah Wangi Sebagai Bioaditif Alami untuk Karakterasi Unjuk Kerja dari Mesin Diesel

2019 ◽  
Vol 3 (1) ◽  
pp. 37
Author(s):  
Abdul Muhyi ◽  
Rico Aditia Prahmana ◽  
Devia G. C. Alfian ◽  
Dicky J. Silitonga ◽  
Didik Supriyadi
Keyword(s):  
Essential Oils ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Engine Speed ◽  
Engine Performance ◽  
Diesel Oil ◽  
Maximum Reduction ◽  
Citronella Oil ◽  
Oil Performance

The consumption of diesel fuel in Indonesia is increasing every year, one way to overcome this problem is to use natural bioaditive in the form of essential oils found in Indonesia. Essential oils used in this study are fragrant lemongrass because fragrant lemongrass contains carboxylic compounds (-COOH) [1,2,3]. With the aim of improving engine performance and reducing fuel consumption. This research was conducted by mixing fragrant citronella oil with diesel oil with a percentage of 1%, 0.5% and 0.1% of the total volume. Diesel engines are operated with variations in loading 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800 and 2000 W at a constant engine speed of 1500 rpm. The variables measured and calculated in this experiment are power, torque, Break Mean Effective Pressure (BMEP), Specific Fuel Consumption (SFC). The results showed that adding citronella oil to diesel fuel with a percentage of 1%, 0.5% and 0.1% significantly reduced fuel consumption by 15.5%, 3.6% and 2.6% respectively. The maximum reduction in fuel consumption reaches 0.055 liters / hour at 200W loading with a bioaditive level of 0.1%. The next study planned is to mix clove oil and citronella oil as bioaditive so that it is expected to reduce fuel consumption and engine corrosion. Keywords: Diesel engine, bioaditive, fragrant citronella oil, performance of diesel engines, fuel consumption

scholarly journals Operating Parameters and Environmental Indicators of Diesel Engines Fed with Crop-Based Fuels

2021 ◽  
Vol 25 (1) ◽  
pp. 13-28
Author(s):  
Grzegorz Dzieniszewski ◽  
Maciej Kuboń ◽  
Miroslav Pristavka ◽  
Pavol Findura
Keyword(s):  
Fuel Consumption ◽  
Diesel Engines ◽  
Rapeseed Oil ◽  
Engine Performance ◽  
Diesel Oil ◽  
Environmental Indicators ◽  
Exhaust Fumes ◽  
Fuel Mixtures ◽  
Unit Fuel Consumption ◽  
Analysis Of Performance

Abstract A comparative analysis of performance of Diesel engines fuelled by diesel oil, methyl ester of rapeseed oil and raw rapeseed oil was performed. The analysis of external characteristics of engines powered by various fuel types was accepted for an assessment. Engine performance rates were analysed while attention was paid to power courses, moment, unit fuel consumption and hour fuel consumption, exhaust fumes temperature and exhaust smoke. Operation effectiveness of engines was assessed when they were fed with various fuel types and optimal proportions of fuel mixtures were indicated. Environmental aspects of powering the engines with traditional fuels and crop-based fuels were analysed. The total CO2 emission in the entire process of manufacturing and combustion of fuels was accepted as a criterion. A simplified economic analysis was performed in the aspect of the underlying purpose of using crop-based fuels for propulsion of piston engines. Conclusions and recommendations that indicate directions of development concerning the analysed issue were prepared.

scholarly journals The Concise Latest Report on the Advantages and Disadvantages of Pure Biodiesel (B100) on Engine Performance: Literature Review and Bibliometric Analysis

2021 ◽  
Vol 6 (3) ◽  
pp. 469-490
Author(s):  
Muji Setiyo ◽  
Dori Yuvenda ◽  
Olusegun David Samuel
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Bibliometric Analysis ◽  
Diesel Engines ◽  
Thermal Efficiency ◽  
Raw Materials ◽  
Engine Performance ◽  
Diesel Oil ◽  
Specific Fuel Consumption ◽  
Advantages And Disadvantages

Currently, many countries are promoting B100 as the main fuel for diesel engines towards the transition to 100% renewable energy applications. However, due to its properties, B100 has both advantages and disadvantages to replace diesel oil. Therefore, a bibliometric analysis was carried out to evaluate the performance and emissions of a diesel engine with the B100 being tested on a multi-cylinder diesel engine for cars. Unfortunately, only 12 of the 127 selected articles are eligible to be reviewed in detail and none of them discusses all the key performance of diesel engines which include Brake Thermal Efficiency (BTE), Specific Fuel Consumption (SFC), Cylinder Pressure (CPs), Heat Release Rate (HRR), NOx, and smoke. Through data synthesis, we found that the use of B100 provides advantages in engine noise, thermal efficiency, specific fuel consumption, and emissions under certain engine loads. On the other hand, it also has the potential to result in poorer performance, if there is no modification to engine components and the addition of additives. As a recommendation, the results of this analysis provide a guide for further research to examine the use of B100 with all diesel engine performance variables. Research paths can be developed with the wider potential to provide new arguments on various diesel engine technologies, engine capacities, B100 raw materials, and test environments.

scholarly journals STUDIES UPON THE POSSIBILITIES OF THE BIOFUEL USE IN THE CASE OF DIESEL ENGINES USING THE WALL FILM INJECTION SYSTEM

1970 ◽  
Vol 62 ◽  
Author(s):  
A. Naghiu ◽  
N. Burnete ◽  
M. Chitoanu
Keyword(s):  
Fuel Consumption ◽  
Diesel Engines ◽  
Cylinder Head ◽  
Diesel Oil ◽  
Green Energy ◽  
Specific Fuel Consumption ◽  
Injection System ◽  
Wall Film ◽  
Major Reduction

The paper presents the possibilities of the “M” system diesel engines to work with biofuels (the green energy), with regard to the specific fuel consumption and level of pollution. The experiments showed that the engines working on the base of wall film injection have a very large adaptability to biofuels. It must be done only few changes at the engines, regarding the form of the cylinder head, the material of the piston and the preheating of the fuel. So, their power and torque are slightly similar to the case of diesel oil use, the specific fuel consumption is in acceptable limits and the pollution has a major reduction.

An Improvement of Part Load Performance of Diesel Engines Operating at Constant Speed Conditions

1994 ◽  
Vol 208 (1) ◽  
pp. 21-25 ◽  
Author(s):  
A A Abdel-Rahman ◽  
M K Ibrahim ◽  
A A Said
Keyword(s):  
Fuel Consumption ◽  
Diesel Engines ◽  
Petroleum Refining ◽  
Specific Fuel Consumption ◽  
Constant Speed ◽  
Maximum Pressure ◽  
Brake Specific Fuel Consumption ◽  
Part Load ◽  
Generating Sets ◽  
In Series

This paper discusses the possibility of improving the part load performance of diesel electric turbocharged engines operating at constant speed conditions. A sequential turbocharged system is proposed, where the compressors are connected In series. The study focused on two turbocharged diesel–electric generating sets existing at Ameria Petroleum Refining Company in Alexandria, Egypt. The results of the prediction showed that, at part load, both the maximum pressure and temperature were increased, and the brake specific fuel consumption was reduced considerably (by about 10 per cent).

Marine Gas Turbine Performance Model for More Electric Ships

2011 ◽  
Author(s):  
George M. Koutsothanasis ◽  
Anestis I. Kalfas ◽  
Georgios Doulgeris
Keyword(s):  
Gas Turbine ◽  
Fuel Consumption ◽  
Diesel Engines ◽  
Gas Turbines ◽  
Electric Propulsion ◽  
Operating Conditions ◽  
Prime Mover ◽  
Creep Life ◽  
Hull Fouling ◽  
Turbine Performance

This paper presents the benefits of the more electric vessels powered by hybrid engines and investigates the suitability of a particular prime-mover for a specific ship type using a simulation environment which can approach the actual operating conditions. The performance of a mega yacht (70m), powered by two 4.5MW recuperated gas turbines is examined in different voyage scenarios. The analysis is accomplished for a variety of weather and hull fouling conditions using a marine gas turbine performance software which is constituted by six modules based on analytical methods. In the present study, the marine simulation model is used to predict the fuel consumption and emission levels for various conditions of sea state, ambient and sea temperatures and hull fouling profiles. In addition, using the aforementioned parameters, the variation of engine and propeller efficiency can be estimated. Finally, the software is coupled to a creep life prediction tool, able to calculate the consumption of creep life of the high pressure turbine blading for the predefined missions. The results of the performance analysis show that a mega yacht powered by gas turbines can have comparable fuel consumption with the same vessel powered by high speed Diesel engines in the range of 10MW. In such Integrated Full Electric Propulsion (IFEP) environment the gas turbine provides a comprehensive candidate as a prime mover, mainly due to its compactness being highly valued in such application and its eco-friendly operation. The simulation of different voyage cases shows that cleaning the hull of the vessel, the fuel consumption reduces up to 16%. The benefit of the clean hull becomes even greater when adverse weather condition is considered. Additionally, the specific mega yacht when powered by two 4.2MW Diesel engines has a cruising speed of 15 knots with an average fuel consumption of 10.5 [tonne/day]. The same ship powered by two 4.5MW gas turbines has a cruising speed of 22 knots which means that a journey can be completed 31.8% faster, which reduces impressively the total steaming time. However the gas turbine powered yacht consumes 9 [tonne/day] more fuel. Considering the above, Gas Turbine looks to be the only solution which fulfills the next generation sophisticated high powered ship engine requirements.

Real-world exhaust emissions and fuel consumption for diesel vehicles fueled by waste cooking oil biodiesel blends

2018 ◽  
Vol 191 ◽  
pp. 249-257 ◽  
Author(s):  
Xianbao Shen ◽  
Jiacheng Shi ◽  
Xinyue Cao ◽  
Xin Zhang ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Real World ◽  
Exhaust Emissions ◽  
Waste Cooking Oil ◽  
Biodiesel Blends ◽  
Cooking Oil ◽  
Diesel Vehicles
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