Journal articles: 'Four-cylinder diesel engine'

1

Terazawa, Yasuyuki, Eiji Nakai, Motoshi Kataoka, and Takashi Sakono. "The new mazda four-cylinder diesel engine." MTZ worldwide 72, no. 9 (December 31, 2010): 26–33. http://dx.doi.org/10.1365/s38313-011-0086-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Steinparzer, Fritz, Wolfgang Mattes, Peter Nefischer, and Thaddäus Steinmayr. "The new BMW four-cylinder diesel engine." MTZ worldwide 68, no. 11 (November 2007): 6–10. http://dx.doi.org/10.1007/bf03226865.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Steinparzer, Fritz, Wolfgang Mattes, Peter Nefischer, and Thaddaeus Steinmayr. "The new BMW four-cylinder diesel engine." MTZ worldwide 68, no. 12 (December 2007): 24–27. http://dx.doi.org/10.1007/bf03226877.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Kathri, Akasyah M., Rizalman Mamat, Amir Aziz, Azri Alias, and Nik Rosli Abdullah. "One-Dimensional Simulation of the Combustion Process in an Engine Cylinder with Ethanol." Applied Mechanics and Materials 660 (October 2014): 447–51. http://dx.doi.org/10.4028/www.scientific.net/amm.660.447.

Full text

Abstract:

The diesel engine is one of the most important engines for road vehicles. The engine nowadays operates with different kinds of alternative fuels, such as natural gas and biofuel. The aim of this article is to study the combustion process that occurs in an engine cylinder of a diesel engine when using biofuel. The one-dimensional numerical analysis using GT-Power software is used to simulate the commercial four-cylinder diesel engine. The engine operated at high engine load and speed. The ethanol fuel used in the simulation is derived from the conventional ethanol fuel properties. The analysis of simulations includes the cylinder pressure, combustion temperature and rate of heat release. The simulation results show that in-cylinder pressure and temperature for ethanol is higher than for diesel at any engine speed. However, the mass fraction of ethanol burned is similar to that of diesel. MFB only affects the engine speed.

APA, Harvard, Vancouver, ISO, and other styles

5

Meininger, Rik D., Chol-Bum M. Kweon, Michael T. Szedlmayer, Khanh Q. Dang, Newman B. Jackson, Christopher A. Lindsey, Joseph A. Gibson, and Ross H. Armstrong. "Knock criteria for aviation diesel engines." International Journal of Engine Research 18, no. 7 (September 20, 2016): 752–62. http://dx.doi.org/10.1177/1468087416669882.

Full text

Abstract:

The objective of this study was to develop knock criteria for aviation diesel engines that have experienced a number of malfunctions during flight and ground operation. Aviation diesel engines have been vulnerable to knock because they use cylinder wall coating on the aluminum engine block, instead of using steel liners. This has been a trade-off between reliability and lightweighting. An in-line four-cylinder four-stroke direct-injection high-speed turbocharged aviation diesel engine was tested to characterize its combustion at various ground and flight conditions for several specially formulated Jet A fuels. The main fuel property chosen for this study was cetane number, as it significantly impacts the combustion of the aviation diesel engines. The other fuel properties were maintained within the MIL-DTL-83133 specification. The results showed that lower cetane number fuels showed more knock tendency than higher cetane number fuels for the tested aviation diesel engine. In this study, maximum pressure rise rate, or Rmax, was used as a parameter to define knock criteria for aviation diesel engines. Rmax values larger than 1500 kPa/cad require correction to avoid potential mechanical and thermal stresses on the cylinder wall coating. The finite element analysis model using the experimental data showed similarly high mechanical and thermal stresses on the cylinder wall coating. The developed diesel knock criteria are recommended as one of the ways to prevent hard knock for engine developers to consider when they design or calibrate aviation diesel engines.

APA, Harvard, Vancouver, ISO, and other styles

6

Ramalingam, Senthil, Silambarasan Rajendran, and Pranesh Ganesan. "A Comparative Assessment of Operating Characteristics of a Diesel Engine Using 20% Proportion of Different Biodiesel Diesel Blend." Journal of KONES 26, no. 1 (March 1, 2019): 127–40. http://dx.doi.org/10.2478/kones-2019-0016.

Full text

Abstract:

Abstract The objective of the present work is to find out the viable substitute fuel for diesel and control of pollutants from compression ignition engines. Therefore, in this present investigation an attempt has been made to study the effect of 20% proportion of five different biodiesel diesel blend in diesel engine. The 20% proportion of biodiesel such as Jatropha, Pongamia, Mahua, Annona and Nerium and 80% of diesel and it is denoted as J20, P20, M20, A20 and N20 are used in the present investigation. The experimental results showed that the brake thermal efficiency of the different biodiesel blend is slightly lower when compared to neat diesel fuel. However, N20 blend, have shown improvement in performance and reduction in exhaust emissions than that of other biodiesel diesel blends. From, the experimental work, it is found that biodiesel can be used up to 20% and 80% of diesel engine without any major modification. The conducted experiments were conducted on a four cylinder four stroke DI and turbo charged diesel engine using biodiesel blends of waste oil, rapeseed oil, and corn oil with normal diesel. The peak cylinder pressure of the engine running with bio diesel was slightly higher than that of diesel. The experiments were conducted on a four cylinder four stroke diesel engine using bio diesel made from corn oil.

APA, Harvard, Vancouver, ISO, and other styles

7

Schommers, Joachim, Franz-Paul Gulde, Martin Hoppenstedt, Gerhard Gruber, Wolfgang Fick, Wilhelm Ruisinger, Gregor Renner, and Andreas Lingens. "Evolution of Mercedes-Benz’s four-cylinder diesel engine." MTZ worldwide 68, no. 1 (January 2007): 6–9. http://dx.doi.org/10.1007/bf03227968.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Joshi, Ishwar, and Surya Prasad Adhikari. "Performance Characteristics of Pine Oil Mixed Diesel Fueled Single Cylinder Four Stroke Diesel Engine." Himalayan Journal of Applied Science and Engineering 2, no. 1 (June 18, 2021): 15–24. http://dx.doi.org/10.3126/hijase.v2i1.37819.

Full text

Abstract:

In this study, biodiesel from the stem of Pinus roxburghii was prepared by steam distillation process. Consequently, the physical and thermal properties of pine biodiesel (P100), and 20 % pine-biodiesel and 80 % diesel (P20) were tested on American Society for Testing and Materials (ASTM) standards. The test results confirmed that the thermophysical properties of pine biodiesel and its blend were suitable for the fuel in diesel engine without any modification in the test engine. Eventually, the engine performance and combustion parameters were evaluated for pine-biodiesel blend for 5 % biodiesel and 95 % diesel (P5), 10 % biodiesel and 90 % diesel (P10), 15 % biodiesel and 85 % diesel (P15) and P20, and compared with diesel on Kirloskar Single Cylinder Compression Ignition Engine for a compression ratio of 15:1. In the midst of those in different blends evaluated, P15 showed the better brake specific fuel consumption (BSFC) i.e 18.75 % lower than diesel fuel particularly up to 50 % of the engine load. However, at higher load, decrease rate in BSFC of P15 fuel is lower than engine load up to 50 %. Similarly, brake thermal efficiency (BTE) of P15 increases to 13.5% mainly on 50 % loading condition of the engine. At above, increment rate of BTE of pine oil biodiesel compared to diesel decreases. The brake power (BP) and brake mean effective pressure (BMEP) of P15 also found nearer to diesel. However, the BP of P15 found higher compared to diesel in all loading conditions. Thus, from the experimental investigations, P15 blend of pine oil biodiesel was found to be amenable for its use in compression ignition (CI) engine without any modification, as the BTE and SFC were found to better and, BP, indicated power (IP) and BMEP were also found nearer to diesel fuel.

APA, Harvard, Vancouver, ISO, and other styles

9

Ivnev, Alexander Andreevich, Vladimir Anatoljevich Zhukov, Yuriy Evgenievich Khryashchyev, and Alexander Ivanovich Yamanin. "Thermal tension of cylinder covers of transport diesel engines converted to marine diesels." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2021, no. 2 (May 31, 2021): 55–64. http://dx.doi.org/10.24143/2073-1574-2021-2-55-64.

Full text

Abstract:

The article describes the characteristics of thermal loading of the cylinder covers of transport diesel engines during their conversion to marine diesels. The engines of the CHN14/14 type produced by the Yaroslavl Motor Plant are proposed as promising for use in marine power plants. A special feature of the engine design is the individual four-valve cylinder heads, which have a complex geometric shape. The conversion of automobile engines, the cylinder heads of which were made of aluminum alloys, to marine ones is accompanied by an increase in the degree of their acceleration. The cylinder heads in operation experience significant thermal and mechanical loads, which causes the need for increased requirements for the materials of the cylinder heads. The rational choice of the cylinder head material is one of the most important tasks to be solved when upgrading and boosting engines. Experience in the operation of marine diesel engines shows that in order to ensure the required reliability under prolonged exposure to elevated temperatures due to forcing, it is necessary to choose cast iron as a structural material. A three-dimensional model of the cylinder head is developed. When performing the calculations, the boundary conditions are justified, taking into account the local nature of the distribution of thermal and mechanical effects on the diesel cylinder head. As a result of numerical modeling, the stress-strain states of cylinder heads made of high-strength cast iron, ductile iron and cast iron with vermicular graphite are determined and analyzed. There has been proved the preference for using cast irons with vermicular graphite, which have satisfactory casting and physical and mechanical properties. The advantages of using cast iron with vermicular graphite include a decrease in the temperature of the cylinder head in the area of the inter-valve bridge. The possibility of increasing the engine power from 330 to 560 kW when replacing aluminum alloys with cast iron with vermicular graphite for the manufacture of cylinder heads is proved.

APA, Harvard, Vancouver, ISO, and other styles

10

Parker, J. K., S. R. Bell, and D. M. Davis. "An Opposed-Piston Diesel Engine." Journal of Engineering for Gas Turbines and Power 115, no. 4 (October 1, 1993): 734–41. http://dx.doi.org/10.1115/1.2906767.

Full text

Abstract:

Typical conventional diesel engine designs are based on arrangements of single piston and cylinder sets placed sequentially either in-line or offset (“V”) along the crankshaft. The development of other engines, such as the opposed piston type, has been motivated by potential advantages seen in such designs, which may not be viable in conventional in-line or V engine arrangements. Several alternatives to conventional engine design have been investigated in the past and some aspects of these designs have been utilized by engine manufacturers. The design and development of a proof-of-concept opposed piston diesel engine is summarized in this paper. An overview of opposed-piston engines is presented from early developments to current designs. The engine developed in this work is a two stroke and uses four pistons, which move in two parallel cylinders that straddle a single crankshaft. A prechamber equipped with a single fuel injector connects the two cylinders, forming a single combustion chamber. The methodology of the engine development process is discussed along with details of component design. Experimental evaluations of the assembled proof-of-concept engine were used for determining feasibility of the design concept. An electric dynamometer was used to motor the engine and for loading purposes. The dynamometer is instrumented for monitoring both speed and torque. Engine parameters measured include air flow rate, fuel consumption rate, inlet air and exhaust temperatures, and instantaneous cylinder gas pressure as a function of crank position. The results of several testing runs are presented and discussed.

APA, Harvard, Vancouver, ISO, and other styles

11

Kluczyk, Marcin, and Andrzej Grządziela. "Simulation Model of Four Stroke, Six Cylinder Marine Diesel Engine." Solid State Phenomena 236 (July 2015): 113–18. http://dx.doi.org/10.4028/www.scientific.net/ssp.236.113.

Full text

Abstract:

The paper presents a model of dynamics of six-cylinder inline diesel engine executed in the Matlab software. The basic equations necessary to describe the forces acting during the engine operation was presented. Application of some simplifications allowed to present proposal of a mathematical model of the engine, which allows analysis of changes of forces in the crank-piston system, depending on the technical condition of the fuel system elements. Operational experience indicate that one of the most common cause of failure of the fuel system is reduced fuel charge supplied by a defective fuel injection pump. Calculations of gas forces had been replaced by the implementation into the model indication charts recorded from tests on a engine test stand. Simulation results were presented as a result of FFT spectra of modeled tangential forces.

APA, Harvard, Vancouver, ISO, and other styles

12

Karasev, Andrey V. "Genesis of autotractor diesel engineering and first diesel tractors." Tekhnicheskiy servis mashin, no. 1 (March 1, 2020): 207–15. http://dx.doi.org/10.22314/2618-8287-2020-58-1-207-215.

Full text

Abstract:

Agriculture needed a simple engine running on cheap fuel to switch to mechanical traction. Due to its simplicity and ability to work on oil, colorization engines have become widespread, including in agriculture. (Research purpose) The research purpose is in identifying the key issues that influenced the creation of diesel engines with divided combustion chamber: indirect, pre-chamber, as well as studying the story of the creation of the indirect diesel, the first diesel tractors. (Materials and methods) The article notes the importance of the International Congress of figures involved in the construction and use of internal combustion engines, and the exhibition organized at the same time. The exhibition presents 95 engines, 23 of them were created at Russian factories. The holding of the international event and the wide participation of domestic engine manufacturers in it testified to the development of engine design in Russia. (Results and discussion) The article notes that despite the success of the world engine building, the problem of creating a lightweight diesel of high specific power, suitable for installation on automotive equipment, has not been solved yet. The article consideres the history of creation of a high-speed turbocharged diesel engine with a "soft" flow of the working stroke. (Conclusions) A two-cylinder pre-chamber diesel engine with a capacity of 18 kilowatts (25 horsepower) at 800 rpm by P. L'Orange was produced by Benz & Cie in 1922 and intended for agricultural machinery. The Benz-Sendling S6 motor plow with the Benz & Cie diesel was launched in March 1923. In addition to three-wheeled tractors and motor plows, since 1923, Benz and Sendling have offered a four-wheeled model of the BK diesel tractor. The first serial diesel tractor in Europe is considered to be the Deutz tractor. Produced in 1927, the MTH 222 tractor was equipped with a 14-horsepower single-cylinder engine with an additional chamber.

APA, Harvard, Vancouver, ISO, and other styles

13

LEE, HYUN-SEUNG, YOUNG-SHIN LEE, JAE-HOON KIM, JOON-TAK JUN, JAE-OK LEE, and CHUL-GOO KIM. "A STRUCTURAL ANALYSIS AND TOPOLOGY OPTIMIZATION ON CYLINDER BLOCK OF HEAVY DUTY DIESEL ENGIN." International Journal of Modern Physics B 24, no. 15n16 (June 30, 2010): 2676–81. http://dx.doi.org/10.1142/s0217979210065453.

Full text

Abstract:

The heavy duty diesel engine must have a large output for maintaining excellent mobility. In this study, a three-dimensional finite element model of a heavy-duty diesel engine was developed to conduct the stress analysis by using property of CGI. The compacted graphite iron (CGI) is a material currently under study for the engine demanded for high torque, durability, stiffness, and fatigue. The FE model of the heavy duty diesel engine section consisting of four half cylinders was selected. The heavy duty diesel engine section includes a cylinder block, a cylinder head, a gasket, a liner, a bearing cap, bearing and bolts. The loading conditions of engine are pre-fit load, assembly load, and gas load. A structural analysis on the result was performed in order to optimize on the cylinder block of the diesel engine.

APA, Harvard, Vancouver, ISO, and other styles

14

Čedík, Jakub, Martin Pexa, Bohuslav Peterka, Michal Holůbek, Daniel Mader, and Radek Pražan. "Effect of Biobutanol-Sunflower Oil-Diesel Fuel Blends on Combustion Characteristics of Compression Ignition Engine." Acta Technologica Agriculturae 21, no. 4 (December 1, 2018): 130–35. http://dx.doi.org/10.2478/ata-2018-0024.

Full text

Abstract:

Abstract Based on many regulations the biofuels are widely used in combustion engines. The operational parameters, such as performance parameters or emission production, are often monitored. The essence of changes to these operational parameters is related to the effect of biofuels on the course of cylinder pressure inside the combustion chamber. The contribution deals with the effect of biobutanol-sunflower oil-diesel fuel blends on the performance parameters, the behaviour of the cylinder pressure of the compression ignition engine during combustion, and exhaust gas temperature. Biobutanol-sunflower oil-diesel fuel blends in ratios of 10–20–70% and 20–20–60% were used as test fuels, with diesel fuel used as a reference. Turbocharged four-cylinder inline CI engine Zetor 1204 installed in the tractor Zetor Forterra 8642 was used for measurement. Based on the results, it can be stated that with higher amount of butanol in the fuel mixture, the maximum value of cylinder pressure decreases, especially at a high engine load.

APA, Harvard, Vancouver, ISO, and other styles

15

Ganapathy, Thirunavukkarasu, Parkash Gakkhar, and Krishnan Murugesan. "An analytical and experimental study of performance on jatropha biodiesel engine." Thermal Science 13, no. 3 (2009): 69–82. http://dx.doi.org/10.2298/tsci0903069g.

Full text

Abstract:

Biodiesel plays a major role as one of the alternative fuel options in direct injection diesel engines for more than a decade. Though many feed stocks are employed for making biodiesel worldwide, biodiesel derived from domestically available non-edible feed stocks such as Jatropha curcas L. is the most promising alternative engine fuel option especially in developing countries. Since experimental analysis of the engine is pricey as well as more time consuming and laborious, a theoretical thermodynamic model is necessary to analyze the performance characteristics of jatropha biodiesel fueled diesel engine. There were many experimental studies of jatropha biodiesel fueled diesel engine reported in the literature, yet theoretical study of this biodiesel run diesel engine is scarce. This work presents a theoretical thermodynamic study of single cylinder four stroke direct injection diesel engine fueled with biodiesel derived from jatropha oil. The two zone thermodynamic model developed in the present study computes the in-cylinder pressure and temperature histories in addition to various performance parameters. The results of the model are validated with experimental values for a reasonable agreement. The variation of cylinder pressure with crank angle for various models are also compared and presented. The effects of injection timing, relative air fuel ratio and compression ratio on the engine performance characteristics for diesel and jatropha biodiesel fuels are then investigated and presented in the paper.

APA, Harvard, Vancouver, ISO, and other styles

16

Mickevičius, Tomas, Stasys Slavinskas, Slawomir Wierzbicki, and Kamil Duda. "THE EFFECT OF DIESEL-BIODIESEL BLENDS ON THE PERFORMANCE AND EXHAUST EMISSIONS OF A DIRECT INJECTION OFF-ROAD DIESEL ENGINE." TRANSPORT 29, no. 4 (December 16, 2014): 440–48. http://dx.doi.org/10.3846/16484142.2014.984331.

Full text

Abstract:

This paper presents a comparative analysis of the diesel engine performance and emission characteristics, when operating on diesel fuel and various diesel-biodiesel (B10, B20, B40, B60) blends, at various loads and engine speeds. The experimental tests were performed on a four-stroke, four-cylinder, direct injection, naturally aspirated, 60 kW diesel engine D-243. The in-cylinder pressure data was analysed to determine the ignition delay, the Heat Release Rate (HRR), maximum in-cylinder pressure and maximum pressure gradients. The influence of diesel-biodiesel blends on the Brake Specific Fuel Consumption (bsfc) and exhaust emissions was also investigated. The bench test results showed that when the engine running on blends B60 at full engine load and rated speed, the autoignition delay was 13.5% longer, in comparison with mineral diesel. Maximum cylinder pressure decreased about 1–2% when the amount of Rapeseed Methyl Ester (RME) expanded in the diesel fuel when operating at full load and 1400 min–1 speed. At rated mode, the minimum bsfc increased, when operating on biofuel blends compared to mineral diesel. The maximum brake thermal efficiency sustained at the levels from 0.3% to 6.5% lower in comparison with mineral diesel operating at full (100%) load. When the engine was running at maximum torque mode using diesel – RME fuel blends B10, B20, B40 and B60 the total emissions of nitrogen oxides decreased. At full and moderate load, the emission of carbon monoxide significantly raised as the amount of RME in fuel increased.

APA, Harvard, Vancouver, ISO, and other styles

17

Wang, Xin Jie. "Diesel Engine Cylinder Block Casting Process Optimization." Advanced Materials Research 490-495 (March 2012): 2215–20. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.2215.

Full text

Abstract:

This paper describes the traditional diesel engine cylinder block casting process on the basis, focusing on inline four-cylinder diesel engine cylinder block lost foam process design and optimization of application. Product pattern and pouring system model formed with expandable polystyrene beads, and assemble them into a model cluster, man can drying them after the model cluster dipping with the aid of manual or manipulator . Put the drying model cluster into the single sand box which with a negative pressure pumping system, a single dry sand rain-type sand system filling and compaction. Finally, to achieve the solidification of molten metal casting and forming under a certain vacuum.

APA, Harvard, Vancouver, ISO, and other styles

18

Palash, S. M., M. A. Kalam, H. H. Masjuki, and B. M. Masum. "Impacts of N, N'-diphenyl-1, 4-phenylenediamine (DPPD) Antioxidant Additive in Jatropha Biodiesel Blends to Reduce NO_x Emission of a Multi Cylinder Vehicle Type Diesel Engine." Advanced Materials Research 774-776 (September 2013): 784–90. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.784.

Full text

Abstract:

To meet stringent exhaust emission norms worldwide, various exhaust pre-treatment and post-treatment techniques have been employed in modern engines. Using antioxidant additives in biodiesel fuels is a promising and effective NOx reduction technology. Non-edible jatropha oil based methyl ester was produced and blended with conventional diesel. Five fuel samples (Diesel, JB5, JB5DPPD0.15%, JB15 and JB15DPPD0.15%) were tested for their use as substitute fuel for a radiator-cooled four cylinder diesel engine. Experiment results show that DPPD antioxidant additive could be reduced NOx emission significantly with slight penalty on engine performance as well as CO and HC emission. However, when compared to diesel combustion the emissions of HC and CO were found nearly same or below. By addition of 0.15% (m) DPPD additive in JB5 and JB15 reduction of NOx emission were 12.68% and 13.36 % compared to biodiesel blends without additive at full throttle position. As conclusion, JB5 and JB15 with addition of 0.15% (m) can be used in four cylinder diesel engine to reduce NOx and consequently overcome the barrier to market expansion of biodiesel fuels.

APA, Harvard, Vancouver, ISO, and other styles

19

Attar, Hassan M., Dawei Wu, and Adam P. Harvey. "Performance, Emissions and Durability Studies on Diesel Engine Fuelled with a Preheated Raw Microalgal Oil." Proceedings 58, no. 1 (September 11, 2020): 4. http://dx.doi.org/10.3390/wef-06906.

Full text

Abstract:

Preheated Schizochytrium sp. raw microalgae oil (MAO) was evaluated as a fuel in a single-cylinder four-stroke diesel engine to produce a comparative study of MAO and diesel oil (DO) critical parameters. In particular, brake power, brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), in-cylinder pressure (CP), exhaust gas temperature (EGT), both nitrogen oxides (NOx) and carbon monoxide (CO) emissions were investigated. Additionally, an engine durability test for longevity was undertaken over a 30-h period, using raw MAO as the fuel. The study demonstrated that the preheated MAO could be successfully used in a diesel engine smoothly. The use of MAO reduced the engine brake power by 26% and increased brake-specific fuel consumption by 20%. The most significant finding from this research study is that there was a significant reduction in NOx and CO emission by 42% and 60% when using raw MAO, respectively. Therefore, these findings demonstrate that algae oil is a highly credible fuel for use in diesel engines and offers a promising solution to diesel engine emissions.

APA, Harvard, Vancouver, ISO, and other styles

20

Win, H. H. "Performance of Jatropha Oil-based Biodiesel Fuel in a Single-cylinder Four-Stroke Diesel Engine." ASEAN Journal on Science and Technology for Development 29, no. 2 (December 20, 2012): 77. http://dx.doi.org/10.29037/ajstd.54.

Full text

Abstract:

Studies on alternative fuels have been active in Myanmar because the rapid mechanization of the agricultural sector demands higher diesel consumption. Jatropha oil-based biodiesel is one of the potential alternatives because of the relative ease of growing and producing this plant. In this study, both the experimental and theoretical analyses of Jatropha oil-based B20 biodiesel wereperformed and compared with conventional diesel. First, B20 was prepared by the base-catalyzed transesterification of the oil and its properties were measured. Second, separate performance tests were conducted on diesel and the biodiesel fuel using a LEYER-16 diesel engine. The speed range of interest was between 1000 r.p.m and 2000 r.p.m. Third, performance simulations were done in MATLAB using an algorithm written based on the theory of the engine operating cycle and air/ fuel compositions. Both experimental and simulation results show that there were no significant differences in the brake power and thermal efficiency of the engine between using diesel and the B20 diesel. However, fuel consumption when using B20 was slightly higher than that of diesel. This difference was marginal and it can be concluded that engine performance characteristics are the same for both diesel and B20 suggesting that B20 has great potential to be used as a substitute for diesel.

APA, Harvard, Vancouver, ISO, and other styles

21

Stelmasiak, Zdzisław. "Application of Alcohols to Dual - Fuel Feeding the Spark-Ignition and Self-Ignition Engines." Polish Maritime Research 21, no. 3 (October 28, 2014): 86–94. http://dx.doi.org/10.2478/pomr-2014-0034.

Full text

Abstract:

Abstract This paper concerns analysis of possible use of alcohols for the feeding of self - ignition and spark-ignition engines operating in a dual- fuel mode, i.e. simultaneously combusting alcohol and diesel oil or alcohol and petrol. Issues associated with the requirements for application of bio-fuels were presented with taking into account National Index Targets, bio-ethanol production methods and dynamics of its production worldwide and in Poland. Te considerations are illustrated by results of the tests on spark- ignition and self- ignition engines fed with two fuels: petrol and methanol or diesel oil and methanol, respectively. Te tests were carried out on a 1100 MPI Fiat four- cylinder engine with multi-point injection and a prototype collector fitted with additional injectors in each cylinder. Te other tested engine was a SW 680 six- cylinder direct- injection diesel engine. Influence of a methanol addition on basic operational parameters of the engines and exhaust gas toxicity were analyzed. Te tests showed a favourable influence of methanol on combustion process of traditional fuels and on some operational parameters of engines. An addition of methanol resulted in a distinct rise of total efficiency of both types of engines at maintained output parameters (maximum power and torque). In the same time a radical drop in content of hydrocarbons and nitrogen oxides in exhaust gas was observed at high shares of methanol in feeding dose of ZI (petrol) engine, and 2-3 fold lower smokiness in case of ZS (diesel) engine. Among unfavourable phenomena, a rather insignificant rise of CO and NOx content for ZI engine, and THC and NOx - for ZS engine, should be numbered. It requires to carry out further research on optimum control parameters of the engines. Conclusions drawn from this work may be used for implementation of bio-fuels to feeding the combustion engines.

APA, Harvard, Vancouver, ISO, and other styles

22

Prabhakar, S., V. N. Banugopan, K. Annamalai, P. Sentilkumar, G. Devaradjane, and S. Jayaraj. "Influence of injection timing on the performance, emissions, combustion analysis and sound characteristics of Nerium biodiesel operated single cylinder four stroke cycle direct injection diesel engine." Material Science Research India 7, no. 1 (June 25, 2010): 201–7. http://dx.doi.org/10.13005/msri/070125.

Full text

Abstract:

The automobile sector which is growing day to day consumes the fossil fuel more than its growth. So there is a demand for exploring new sources of fuels for existing engines. This led to the growth in bio diesels which is an alternate fuel. An alternative fuel must be technically feasible, economically competitive, environmentally acceptable, and readily available. In this project esterified Nerium oil is used as an alternate fuel. A single cylinder stationary kirloskar engine is used to compare the performance and emission characteristics between pure diesel and Nerium blends. In this project selection of suitable nerium blend and selection of optimized injection timing for the blend is done. The Nerium oil blends are in percentage of 20%, 40%, 60%, 80%, and 100% of Nerium oil to 80%, 60%, 40%, 20% & 0% of diesel. From this project it is concluded that among all nerium and diesel blends 20% of nerium and 80% of diesel blend at 30º BTDC gives better performance nearing the diesel. When comparing the emission characteristics HC, CO is reduced when compared to diesel, however NOx emission is slightly increased when compared to diesel. Hence Nerium blend can be used in existing diesel engines with minimum modification in the engine. It also describes the usage of non-edible oil to a greater extent.

APA, Harvard, Vancouver, ISO, and other styles

23

Taranin, A. G. "USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY FOUR– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)." EurasianUnionScientists 5, no. 4(73) (May 12, 2020): 35–41. http://dx.doi.org/10.31618/esu.2413-9335.2020.5.73.681.

Full text

Abstract:

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total.

APA, Harvard, Vancouver, ISO, and other styles

24

Taranin, A. G. "USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY FOUR– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)." National Association of Scientists 1, no. 27(54) (May 14, 2020): 32–38. http://dx.doi.org/10.31618/nas.2413-5291.2020.1.54.186.

Full text

Abstract:

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total.

APA, Harvard, Vancouver, ISO, and other styles

25

Heywood, John B. "Fluid Motion Within the Cylinder of Internal Combustion Engines—The 1986 Freeman Scholar Lecture." Journal of Fluids Engineering 109, no. 1 (March 1, 1987): 3–35. http://dx.doi.org/10.1115/1.3242612.

Full text

Abstract:

The flow field within the cylinder of internal combustion engines is the most important factor controlling the combustion process. Thus it has a major impact on engine operation. This paper reviews those aspects of gas motion into, within, and out of the engine cylinder that govern the combustion characteristics and breathing capabilities of spark-ignition engines and compression-ignition or diesel engines. Necessary background information on reciprocating engine operating cycles, the primary effect of piston motion and the spark-ignition and diesel engine combustion processes is first summarized. Then the characteristics of flow through inlet and exhaust valves in four-stroke cycle engines, and through ports in the cylinder liner in two-stroke cycle engines are reviewed. These flows govern the airflow through the engine, and set up the in-cylinder flow that controls the subsequent combustion process. The essential features of common in-cylinder flows—the large scale rotating flows set up by the conical intake jet, the creation and development of swirl about the cylinder axis, the flows produced during compression due to combustion chamber shape called squish, flow during the combustion process, and two-stroke scavenging flows—are then described. The turbulence characteristics of these flows are then defined and discussed. Finally, flow phenomena which occur near the walls, which are important to heat transfer and hydrocarbon emissions phenomena, are reviewed. The primary emphasis is on developing insight regarding these important flow phemomena which occur within the cylinder. To this end, results from many different research techniques—experimental and computational, established and new—have been used as resources. It is the rapidly increasing convergence of engine flow information from these many sources that make this an exciting topic with promise of significant practical contributions.

APA, Harvard, Vancouver, ISO, and other styles

26

Taranin, A. G. "USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY TWO– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)." EurasianUnionScientists 5, no. 4(73) (May 12, 2020): 42–49. http://dx.doi.org/10.31618/esu.2413-9335.2020.5.73.682.

Full text

Abstract:

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total.

APA, Harvard, Vancouver, ISO, and other styles

27

Taranin, A. G. "USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY TWO– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)." National Association of Scientists 1, no. 27(54) (May 14, 2020): 39–47. http://dx.doi.org/10.31618/nas.2413-5291.2020.1.54.187.

Full text

Abstract:

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total

APA, Harvard, Vancouver, ISO, and other styles

28

Teoh, Y. H., H. H. Masjuki, M. A. Kalam, Muhammad Afifi Amalina, and H. G. How. "Effect of Premixed Diesel Fuel on Partial HCCI Combustion Characteristics." Applied Mechanics and Materials 663 (October 2014): 26–33. http://dx.doi.org/10.4028/www.scientific.net/amm.663.26.

Full text

Abstract:

This study investigated the effects of premixed diesel fuel on the auto-ignition characteristics in a light duty compression ignition engine. A partial homogeneous chargecompression ignition (HCCI) engine was modified from a single cylinder, four-stroke, direct injection compression ignition engine. The partial HCCI is achieved by injecting diesel fuel into the intake port of the engine, while maintaining diesel fuel injected in cylinder for combustion triggering. The auto-ignition of diesel fuel has been studied at various premixed ratios from 0 to 0.60, under engine speed of 1600 rpm and 20Nm load. The results for performance, emissions and combustion were compared with those achieved without premixed fuel. From the heat release rate (HRR) profile which was calculated from in-cylinder pressure, it is clearly observed that two-stage and three-stage ignition were occurred in some of the cases. Besides, the increases of premixed ratio to some extent have significantly reduced in NO emission.

APA, Harvard, Vancouver, ISO, and other styles

29

Woodward, J. B. "Air-Standard Modelling for Closed-Cycle Diesel Engines." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 209, no. 2 (May 1995): 115–23. http://dx.doi.org/10.1243/pime_proc_1995_209_022_02.

Full text

Abstract:

The author posits that a model constructed from ideal processes is the most desirable starting point for analysis of real power machinery, and then presents means of following this concept in the case of a closed-cycle diesel engine. The traditional air-standard limited-pressure cycle is found unsuitable for this application in that it offers only an unrealistic constant-volume cooling as the model for the processes that must occur between cylinder exhaust and cylinder intake. The present paper substitutes isentropic expansion, throttling and constant-pressure cooling as being suitable ideal models for the actual processes. Equations are presented and sample calculations are given for the cylinder-to-cylinder part of an ideal cycle representing a four-stroke naturally aspirated engine. Two alternatives are also discussed via examples: an engine with partial bypassing of untreated exhaust gas to the cylinder intake and a two-stroke engine with blower or compressor driven by an exhaust gas turbine. A closing example is given to demonstrate one way in which the analyses can be used to find the effect of external process states an engine-cycle output.

APA, Harvard, Vancouver, ISO, and other styles

30

Nugroho, Bagus Anang, Rizqon Fajar, and Ihwan Haryono. "PEMODELAN SIKLUS IN-CYLINDER MESIN DIESEL." Majalah Ilmiah Pengkajian Industri 12, no. 3 (December 19, 2018): 153–62. http://dx.doi.org/10.29122/mipi.v12i3.2743.

Full text

Abstract:

An engine performance can be predicted through modeling and simulation programs. This paper describes the cycle modeling and breathing process of a four-stroke diesel engine. Calibration of the model parameters to eliminate prediction error. This calibration requires the definition of empirical correlation of two parameters namely mechanical delay and the injector nozzle discharge coefficient. Modeling validation is also given by presenting the result data and evaluating the output parameters of the engine. The result of the diesel engine in-cylinder model produces good predictions by applying a mechanical delay correlation for correction of injection time and correlation coefficient of discharge nozze injector. The parameters for correction of injection duration where the mean temperature and pressure conditions for the duration of the injection are used as input model ignition delay cylinder.Keywords: Modeling, Diesel Engine, Performance, Ignition Delay, EmissionsÂ

APA, Harvard, Vancouver, ISO, and other styles

31

Volpato, Carlos Eduardo Silva, Alexon do Prado Conde, Jackson Antonio Barbosa, and Nilson Salvador. "Performance of cycle diesel engine using Biodiesel of olive oil (B100)." Ciência e Agrotecnologia 36, no. 3 (June 2012): 348–53. http://dx.doi.org/10.1590/s1413-70542012000300011.

Full text

Abstract:

Biodiesel is a renewable fuel derived from vegetable oils used in diesel engines, in any proportion with petroleum diesel, or pure. It is produced by chemical processes, usually by transesterification, in which the glycerin is removed. The objective of this study was to compare the performance of a four stroke, four cylinder diesel cycle engines using either olive (B100) biodiesel oil or diesel oil. The following parameters were analyzed: effective and reduced power, torque, specific and hourly fuel consumption, thermo-mechanical and volumetric efficiency. Analysis of variance was performed on a completely randomized design with treatments in factorial and the Tukey test applied at the level of 5%. Five rotation speeds were researched in four replications (650, 570, 490, 410, 320 and 240 rpm). The engine fed with biodiesel presented more satisfactory results for torque, reduced power and specific and hourly consumptions than that fed with fossil diesel.

APA, Harvard, Vancouver, ISO, and other styles

32

Santhanakrishnan, S., and S. Jose. "Performance and Emission Evaluation of a Diesel Engine Fuelled with Cashew Nut Shell Oil Blends." Advanced Materials Research 984-985 (July 2014): 893–99. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.893.

Full text

Abstract:

This paper presents the properties and application of cashew nut shell oil as blend component for diesel in compression ignition engine. Experimental tests were carried out in a single cylinder, four stroke, direct injection, compression ignition engine fueled with cashew nut shell oil blends. During the experiments, the performance and emission characteristics of the diesel engine was analyzed and compared with the neat diesel fuel performance.

APA, Harvard, Vancouver, ISO, and other styles

33

Yusof, Mohamad, Z. A. Zainal, N. A. Farid, and M. A. Miskam. "An Investigation of a Self-Pressurized Alpha V-Type Stirling Engine Converted Diesel Engine." Applied Mechanics and Materials 699 (November 2014): 695–701. http://dx.doi.org/10.4028/www.scientific.net/amm.699.695.

Full text

Abstract:

This study reports the investigation results of 194cc. alpha V-type Stirling engine converted from a four-stroke diesel engine that operated in self-pressurized mode. Tests were conducted with air as the working gas and liquefied petroleum gas (LPG) as the heat source. The engine started operating at 600 °C for hot cylinder temperature and 60 °C for cold cylinder temperature, respectively. At heat input of 1100 J/s, the engine performance was successfully tested at both no load and load conditions. For mechanical shaft power assessment, the engine approximately produced a maximum brake power of 7 W, brake thermal efficiency of 0.6% at 717 rpm speed, 811 °C hot cylinder temperature and 96 °C cold cylinder temperature. For electrical power assessment, the engine was capable of generating a maximum electrical output power of 1.7 We at 657 rpm speed, 855 °C hot cylinder temperature and 98 °C cold cylinder temperature. Despite its low engine performance, the study of alpha V-type Stirling engine is a worthwhile step towards clean and sustainable energy in mass production.

APA, Harvard, Vancouver, ISO, and other styles

34

Stephenson, J. A., and B. A. Hood. "A High-Speed Direct Injection Diesel Engine for Passenger Cars." Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering 202, no. 3 (August 1988): 171–81. http://dx.doi.org/10.1243/pime_proc_1988_202_023_02.

Full text

Abstract:

The paper describes the development of a high-speed direct injection (HSDI) diesel engine suitable for passenger car applications. The evolution from a low emissions medium-speed engine, through a four-cylinder 2.3 litre research engine, into a four-cylinder 2.0 litre production engine is presented. The challenge to the engineer has been to develop the HSDI engine to operate with acceptable noise, emissions, smoke and driveability over the wide speed range (up to 5000 r/min) required for passenger cars. The key element in this task was the optimization of the combustion system and fuel injection equipment. The HSDI is shown to have a significant fuel economy advantage over the prechamber indirect injection (IDI) engine. Future developments of the fuel injection system are described which will further enhance the HSDI engine and provide additional noise and emissions control.

APA, Harvard, Vancouver, ISO, and other styles

35

Lü, Xing-Cai, Wu-Gao Zhang, Xin-Qi Qiao, and Zhen Huang. "Fuel design concept for improving the spray characteristics and emissions of diesel engines." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 219, no. 4 (April 1, 2005): 547–57. http://dx.doi.org/10.1243/095440705x11130.

Full text

Abstract:

This work investigated the improvement of spray characteristics and exhaust emissions of diesel engines by reformulating the fuel compounds and physicochemical parameters. Three oxygenated fuels, including ethanol, dimethyl carbonate (DMC), and dimethoxymethane (DMM), were mixed with diesel. Basic properties directly related to engine parameters and those characterizing fuel quality were investigated. A laser phase Doppler anemometry analyser was applied to obtain the spray characteristics, including the Sauter mean diameter and axial mean velocity distribution, of DMM-diesel hybrid fuels. Furthermore, engine tests of oxygenated hybrid fuels were performed on a four-cylinder water-cooled high-speed direct injection diesel engine. The results show that the evaporation properties and the fuel transportation parameters could be optimized using hybrid fuel, and the engine behaviour seemed to be improved in the presence of oxygenated additives with a reduction in pollutant emissions in exhaust gas.

APA, Harvard, Vancouver, ISO, and other styles

36

Zhijun, Wu, and Huang Zhen. "In-cylinder swirl formation process in a four-valve diesel engine." Experiments in Fluids 31, no. 5 (November 1, 2001): 467–73. http://dx.doi.org/10.1007/s003480100286.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Schommers, Joachim, Johannes Leweux, Thomas Betz, Jürgen Huter, Bernhard Jutz, Peter Knauel, Gregor Renner, and Heiko Sass. "The new Mercedes-Benz four-cylinder diesel engine for passenger cars." MTZ worldwide 69, no. 12 (December 2008): 4–10. http://dx.doi.org/10.1007/bf03226931.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Dong, Da Lu, Chang Pu Zhao, Xiao Zhan Li, Yun Yao Zhu, and Jun Zhang. "Simulation Study of the Impact of Two-Stage Turbocharged System on Diesel Engine." Applied Mechanics and Materials 170-173 (May 2012): 3555–59. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.3555.

Full text

Abstract:

With the increasing strictness of emission regulations, development direction of future diesel engines is toward the high thermal efficiency and low emissions. Supercharging technology is an important means for improving output power of diesel engines. This paper deals with the study of the two-stage turbocharging system of the non-road diesel engine. Based on GT-Power software code, a digital model of 6112 diesel engine was established. The supercharged model was calibrated by using the original experimental data. Then, four types of digital models with different two-stage turbocharging systems were constructed. The best two-stage turbocharging system was determined through investigating the impacts of different options on the performance of diesel engines. It was indicated through the study that two-stage turbocharging system can substantially increase the air flowing into the cylinder which increases the potential of power density. At the same time HC and NOx emissions can reduce. Through this study, a theoretical basis and an important reference for adopting the two-stage turbocharging system of the 6112 diesel engine were provided.

APA, Harvard, Vancouver, ISO, and other styles

39

Zhang, Zhiqing, Jie Tian, Jiangtao Li, Hongchen Ji, Dongli Tan, Jianbin Luo, Yuxiu Jiang, Dayong Yang, and Shuwan Cui. "Effects of Different Mixture Ratios of Methanol-Diesel on the Performance Enhancement and Emission Reduction for a Diesel Engine." Processes 9, no. 8 (August 4, 2021): 1366. http://dx.doi.org/10.3390/pr9081366.

Full text

Abstract:

To improve the combustion and emission characteristics of diesel engines, methanol-diesel fuels with different mixing ratios (DM0, DM10, DM20, DM30, and DM40) were used to investigate the effects of methanol addition on the combustion and emission of a four-stroke diesel engine in terms of cylinder pressure, brake power, brake-specific fuel consumption, and nitrogen oxides, soot, and carbon monoxide emissions. Firstly, an improved entire diesel engine model was developed using AVL-BOOST software and validated by the experimental results. The results showed that the increase of methanol content in the fuel mixture had a negative impact on the performance characteristic of the diesel engine, but significantly improved the emission characteristic of the diesel engine. With the methanol ratio in the mixed fuel increased to 10%, 20%, 30%, and 40%, the cylinder pressure of the engine increased by 0.89%, 1.48%, 2.29%, and 3.17%, respectively. However, the power decreased by 3.76%, 6.74%, 11.35%, and 15.45%, the torque decreased by 3.76%, 6.74%, 11.35%, and 15.45%, respectively, and the brake specific fuel consumption increased by 3.77%, 6.92%, 12.33%, and 17.61%, respectively. In addition, with the methanol ratio in the mixed fuel increased to 10%, 20%, 30%, and 40%, the carbon monoxide emission decreased by 21.32%, 39.04%, 49.81%, and 56.59% and the soot emission decreased by 0.25%, 8.69%, 16.81%, and 25.28%, respectively. Therefore, the addition of methanol to the fuel can improve the combustion and emission characteristics of the engine.

APA, Harvard, Vancouver, ISO, and other styles

40

Nanjappan, Balakrishnan, Goundar Kavandappa, and Nedunchezhian Natarajan. "Experimental investigation of evaporation rate and emission studies of diesel engine fuelled with blends of used vegetable oil biodiesel and producer gas." Thermal Science 19, no. 6 (2015): 1967–75. http://dx.doi.org/10.2298/tsci150604106b.

Full text

Abstract:

An experimental study to measure the evaporation rates, engine performance and emission characteristics of used vegetable oil methyl ester and its blends with producer gas on naturally aspirated vertical single cylinder water cooled four stroke single cylinder diesel engine is presented. The thermo-physical properties of all the bio fuel blends have been measured and presented. Evaporation rates of used vegetable oil methyl ester and its blends have been measured under slow convective environment of air flowing with a constant temperature and the values are compared with fossil diesel. Evaporation constants have been determined by using the droplet regression rate data. The fossil diesel, biodiesel blends and producer gas have been utilized in the test engine with different load conditions to evaluate the performance and emission characteristics of diesel engine and the results are compared with each other. From these observations, it could be noted that, smoke and hydrocarbon drastically reduced with biodiesel in the standard diesel engine without any modifications.

APA, Harvard, Vancouver, ISO, and other styles

41

Moskwa, John J., Wenbo Wang, and Duane J. Bucheger. "A New Methodology for Use in Engine Diagnostics and Control, Utilizing “Synthetic” Engine Variables: Theoretical and Experimental Results." Journal of Dynamic Systems, Measurement, and Control 123, no. 3 (September 1, 2001): 528–34. http://dx.doi.org/10.1115/1.1387019.

Full text

Abstract:

This paper describes new methodologies and algorithms for use in engine diagnostics that simplify and improve combustion quality monitoring and closed-loop engine control in order to meet stringent emission standards. The “synthetic” variables these algorithms produce can be used to indicate the work produced by each cylinder combustion event at all engine speeds, and can be effectively used for on-board combustion quality measurements, engine diagnostics, and closed-loop control. The algorithms are very simple in form, run in real time, and the methodologies can be applied to compression ignition or spark ignition, 2-stroke or 4-stroke gasoline or diesel engines. Both simulation and experimental results are given for a two-stroke, two-cylinder in-line engine. The rotational dynamics and firing sequence of this configuration of engine is very similar to a four-stroke, four cylinder in-line engine, and nearly identical results will be seen with these two designs. Even more dramatic improvements can be seen with engines of fewer cylinders because of greater variations in their inertial forces. The algorithms can be successfully applied to many other engine configurations as well. Therefore, benefits can be derived from the application of these algorithms and their “synthetic” variables to control strategies for almost all modern small and medium size automotive and marine engines, as well as utility engines used for lawn care, snow removal, and other similar applications.

APA, Harvard, Vancouver, ISO, and other styles

42

Tarun, Y., C. Thamotharan, and K. Mukherjee. "Evaluation of engine performance, emissions, of a twin cylinder diesel engine fuelled with waste plastic oil and diesel blends with a fraction of methanol." International Journal of Engineering & Technology 3, no. 2 (April 1, 2014): 123. http://dx.doi.org/10.14419/ijet.v3i2.2096.

Full text

Abstract:

A comprehensive study on the methanol and waste plastic oil as an alternative fuel has been carried out. This report deals with the exhaust emission of waste plastic fuel on twin cylinder diesel engine. The objectives of this report are to analyse the fuel consumption and the emission characteristic of a twin cylinder diesel engine that are using waste plastic oil compared to usage of ordinary diesel that are available in the market. This report describes the setups and the procedures for the experiment which is to analyse the emission characteristics and fuel consumption of diesel engine due to usage of the both fuels. Detail studies about the experimental setup and components have been done before the experiment started. Data that are required for the analysis is observed from the experiments. Calculations and analysis have been done after all the required data needed for the thesis is obtained. The experiment used diesel engine with no load which means no load exerted on it. A four stroke Twin cylinder diesel engine was adopted to study the brake thermal efficiency, brake specific energy consumption, mechanical efficiency, brake power, volumetric efficiency, indicated thermal efficiency and emissions at full load with the fuel of fraction methanol in bio-diesel. In this study, the diesel engine was tested using methanol blended with bio-diesel at certain mixing ratios of (WPO: Diesel) 20:80, 40:60 and 60:40 methanol to bio-diesel respectively. By the end of the report, the successful of the project have been started which is Kirloskar engine is able to run with waste plastic oil (WPO) but the engine needs to run by using diesel fuel first, then followed by waste plastic oil and finished with diesel fuel as the last fuel usage before the engine turned off. The performance of the engine using blended fuel compared to the performance of engine with diesel fuel. Experimental results of blended fuel and diesel fuel are also compared. Keywords: Alternative Fuel, Waste Plastic Oil (WPO), Diesel, Methanol, Performance, Emissions, Pyrolysis.

APA, Harvard, Vancouver, ISO, and other styles

43

Zannis, Theodoros C., Roussos G. Papagiannakis, Efthimios G. Pariotis, and Marios I. Kourampas. "Experimental Study of DI Diesel Engine Operational and Environmental Behavior Using Blends of City Diesel with Glycol Ethers and RME." Energies 12, no. 8 (April 24, 2019): 1547. http://dx.doi.org/10.3390/en12081547.

Full text

Abstract:

An experimental investigation is performed in a single-cylinder direct-injection (DI) diesel engine using city diesel oil called DI1 and two blends of DI1 with a mixture of glycol ethers. The addition of glycol ethers to fuel DI1 produced oxygenated fuels GLY10 (10.2 mass-% glycol ethers) and GLY30 (31.3 mass-% glycol ethers) with 3% and 9% oxygen content, respectively. The addition of biofuel rapeseed methyl ester (RME) to fuel DI1 produced oxygenated blend RME30 (31.2 mass-% RME) with 3% oxygen content. Engine tests were performed with the four fuels in the DI diesel engine at 2500 RPM and at 20%, 40%, 60%, and 80% of full load. The experimental diesel engine was equipped with devices for recording cylinder pressure, injection pressure, and top dead center (TDC) position and also it was equipped with exhaust gas analyzers for measuring soot, NO, CO, and HC emissions. A MATLAB 2014 code was developed for analyzing recorded cylinder pressure, injection pressure, and TDC position data for all obtained engine cycles and for calculating the main engine performance parameters. The assessment of the experimental results showed that glycol ethers have more beneficial impact on soot and NO emissions compared to RME, whereas RME have less detrimental impact on engine performance parameters compared to glycol ethers.

APA, Harvard, Vancouver, ISO, and other styles

44

Anwar, Mohammad, Mohammad G. Rasul, and Nanjappa Ashwath. "A Systematic Multivariate Analysis of Carica papaya Biodiesel Blends and Their Interactive Effect on Performance." Energies 11, no. 11 (October 26, 2018): 2931. http://dx.doi.org/10.3390/en11112931.

Full text

Abstract:

This paper investigates the interactive relationship between three operating parameters (papaya seed oil (PSO) biodiesel blends, engine load, and engine speed) and four responses (brake power, BP; torque; brake specific fuel consumption, BSFC; and, brake thermal efficiency, BTE) for engine testing. A fully instrumented four cylinder four-stroke, naturally aspirated agricultural diesel engine was used for all experiments. Three different blends: B5 (5% PSO biodiesel +95% diesel), B10 (10% PSO biodiesel + 90% diesel), and B20 (20% PSO biodiesel + 80% diesel) were tested. Physicochemical properties of these blends and pure PSO biodiesel were characterised, and the engine’s performance characteristics were analysed. The results of the engine performance experiments showed that, in comparison with diesel, the three PSO biodiesel blends caused a slight reduction in BP, torque, and BTE, and an increase in BSFC. The analysis of variance and quadratic regression modelling showed that both load and speed were the most important parameters that affect engine performance, while PSO biodiesel blends had a significant effect on BSFC.

APA, Harvard, Vancouver, ISO, and other styles

45

Yamasaki, Yudai, Ryosuke Ikemura, and Shigehiko Kaneko. "Model-based control of diesel engines with multiple fuel injections." International Journal of Engine Research 19, no. 2 (December 21, 2017): 257–65. http://dx.doi.org/10.1177/1468087417747738.

Full text

Abstract:

We developed a feed-forward controller for a conventional diesel combustion engine with triple fuel injection and experimentally evaluated its performance. A combustion model that discretizes an engine cycle into a number of representative points to achieve a light calculation load is embedded into the controller; this model predicts the in-cylinder gas-pressure-peak timing with information about the operating condition obtained from the engine control unit. The controller calculates the optimal main-fuel-injection timing to control the in-cylinder gas-pressure peak using the prediction result as a controller with a single input and output. The controller’s performance was evaluated by experiments using a four-cylinder diesel engine under changing the target value of the in-cylinder gas-pressure-peak timing during a target-following test and the performance was also evaluated under changing the exhaust gas recirculation ratio at the constant target value of the in-cylinder gas-pressure-peak timing for the disturbance-response test. It was found that the controller could calculate the optimal main-injection timing over a cycle and maintain the targeted in-cylinder gas-pressure-peak timing even when the target value or exhaust gas recirculation changed. The combustion model was also shown to be fast enough at predicting diesel combustion for onboard control.

APA, Harvard, Vancouver, ISO, and other styles

46

Sham, Radhey, Rajesh Kumar Saluja, Gurwinder Singh, Vineet Kumar, and Shubham Parmar. "Experimental investigation to study the effects of using hot and partially cold EGR in direct injection diesel engine." TECHNOLOGY 04, no. 03 (September 2016): 170–73. http://dx.doi.org/10.1142/s2339547816500059.

Full text

Abstract:

Major exhaust emissions from diesel engines are CO, CO2, PM, UHC and NOx, of which NOx is one of the most harmful. A number of techniques have been utilized to control NOx emissions and exhaust gas recirculation (EGR) is one of the widely used techniques that show outstanding results in NOx reduction in both light and heavy duty diesel engines. In the present study, the experiment has been conducted on a four-stroke, single-cylinder water cooled diesel engine. Here, a long-route EGR system was used in both hot (insulated) and partially cooled (without insulation) conditions. EGR rate was varied from 0 to 24% in steps of 6% and the engine ran at various load conditions. The research objective was to investigate the effects of varying EGR ratios and temperatures on engine performance parameters and determine the effective EGR rate where the engine gives high performance, low fuel consumption and produces low emissions.

APA, Harvard, Vancouver, ISO, and other styles

47

Altosole, Marco, Ugo Campora, Massimo Figari, Michele Laviola, and Michele Martelli. "A Diesel Engine Modelling Approach for Ship Propulsion Real-Time Simulators." Journal of Marine Science and Engineering 7, no. 5 (May 11, 2019): 138. http://dx.doi.org/10.3390/jmse7050138.

Full text

Abstract:

A turbocharged diesel engine numerical model, suitable for real-time ship manoeuvre simulation, is presented in this paper. While some engine components (mainly the turbocharger, intercooler and manifolds) are modelled by a filling and emptying approach, the cylinder simulation is based on a set of five-dimensional numerical matrices (each matrix is generated by means of a more traditional thermodynamic model based on in-cylinder actual cycle). The new cylinder calculation approach strongly reduces the engine transient computation time, making it possible to transform the simulation model into a real-time executable application. As a case study, the simulation methodology is applied to a high speed four stroke turbocharged marine diesel engine, whose design and off design running data are available from the technical sheet. In order to verify the suitability of the proposed model in real-time simulation applications, a yacht propulsion plant simulator is developed. Numerical results in ship acceleration and deceleration manoeuvres are shown, reducing the simulation running time of 99% in comparison with the corresponding in-cylinder actual cycle engine model.

APA, Harvard, Vancouver, ISO, and other styles

48

Zhang, Zhiqing, Jiangtao Li, Jie Tian, Guangling Xie, Dongli Tan, Boying Qin, Yuanxing Huang, and Shuwan Cui. "Effects of Different Diesel-Ethanol Dual Fuel Ratio on Performance and Emission Characteristics of Diesel Engine." Processes 9, no. 7 (June 29, 2021): 1135. http://dx.doi.org/10.3390/pr9071135.

Full text

Abstract:

In this paper, a four-stroke engine diesel was employed to investigate the effects of different fuel mixture ratios of diesel and ethanol on engine performance and emission characteristics in terms of cylinder temperature, heat release rate, brake power, brake thermal efficiency, brake specific fuel consumption, and cylinder pressure. The corresponding simulation model of diesel engine was developed by AVL-Fire coupled CHEMKIN code, and an improved chemical kinetics mechanism containing 34 reactions and 19 species was employed to simulate the fuel spray process and combustion process. The simulation model was validated by experimental results under 100% and 50% load conditions and used to simulate the combustion process of diesel engine fueled with pure diesel and diesel–ethanol blends with 10%, 20%, and 30% ethanol by volume, respectively. The results showed that the increase of ethanol content in the blended fuel had a certain negative impact on the performance characteristic of diesel engine and significantly improved the emission characteristic of the engine. With the ethanol proportion in the blended fuel increased to 10%, 20%, and 30%, the brake thermal efficiency of the engine increased by 2.24%, 4.33%, and 6.37% respectively. However, the brake-specific fuel consumption increased by 1.56%, 3.49%, and 5.74% and the power decreased by 1.58%, 3.46%, and 5.54% respectively. In addition, with the ethanol proportion in the blended fuel increased to 10%, 20%, and 30%, the carbon monoxide emission decreased by 34.69%, 47.60%, and 56.58%, and the soot emission decreased by 7.83%, 15.24%, and 22.52% respectively. Finally, based on the combining fuzzy and grey correlation theory, nitrogen oxide emission has the highest correlation with engine power and brake-specific fuel consumption. The values reach 0.9103 and 0.8945 respectively. It shows that nitrogen oxide emission and cylinder pressure have a significant relationship on engine power and brake-specific fuel consumption.

APA, Harvard, Vancouver, ISO, and other styles

49

Shukla, Pravesh Chandra, Tarun Gupta, Nitin Kumar Labhsetwar, and Avinash Kumar Agarwal. "Development of low cost mixed metal oxide based diesel oxidation catalysts and their comparative performance evaluation." RSC Advances 6, no. 61 (2016): 55884–93. http://dx.doi.org/10.1039/c6ra06021h.

Full text

Abstract:

A four cylinder diesel engine was used to evaluate the performance of two non-noble metal based diesel oxidation catalysts for emission parameters such as particulate mass, elemental/organic carbon (EC/OC), and trace-metal content in particulates.

APA, Harvard, Vancouver, ISO, and other styles

50

Reghu, V. R., V. Shankar, and P. Ramaswamy. "Comparative Experimental Studies on Four Stroke Four Cylinder Diesel fuelled Base Line Engine and Low Heat Rejection Engine." International Journal of Automotive and Mechanical Engineering 16, no. 3 (October 3, 2019): 6889–905. http://dx.doi.org/10.15282/ijame.16.3.2019.05.0517.

Full text

Abstract:

The depletion of conventional fuel source at a fast rate and increasing of environment pollution motivated extensive research in energy efficient engine design. In the present work, experimental investigations were carried out on a four-stroke four-cylinder dieselfuelled Base Line Engine (BLE) by conducting a normal load test and measuring the required Brake Thermal Efficiency (BThE) and Specific Fuel Consumption (SFC) in a 100 HP dyno facility. A six-gas Analyser was used for the measurement of Unburnt Hydrocarbons (UBHC), Carbon monoxide (CO), Carbon dioxide (CO2), free Oxygen (O2), Nitrogen oxides (NOx), Sulphur oxides (SOx) and a smoke meter was used to measure smoke opacity. Low Heat Rejection (LHR) engine was realized by coating the crown of the aluminium alloy piston with the most popular Thermal Barrier Coating (TBC) material, namely 8%Yttria Partially Stabilized Zirconia (8YPSZ), after coating qualification on research pistons, specifically fabricated to retain the piston material specification, and the geometry of the crown contour. A normal load test was conducted on LHR engine to evaluate the performance as well as to determine the concentration of pollutants. A ~30% improvement in BThE and ~35% improvement in SFC was exhibited by the LHR engine at all loads studied (7 to 64%). While UBHC level showed an increase, the CO, CO2 and O2 contents as revealed in the emission test showed a mixed response (high and low) for an LHR engine. Compared with BLE, NOx and smoke level in LHR engine emission showed an increasing trend with the load. On comparing BLE and LHR engine test results, value addition to the BLE in terms of reduced fuel consumption and pollutants was observed.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Four-cylinder diesel engine'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles