scholarly journals Methodological basis for the conversion of transport diesel engines of transport diesel engines to gas-diesel operation

2021 ◽  
Vol 134 (1) ◽  
pp. 68-78
Author(s):  
G.B. Varlamov ◽  
◽  
S.A. Glazyrin ◽  
P.A. Barabash ◽  
V.G. Petrenko ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Diesel Engines ◽  
Environmental Safety ◽  
Compressed Natural Gas ◽  
Average Temperature ◽  
Advantages And Disadvantages ◽  
Motor Fuels ◽  
Diesel Cycle ◽  
Gas Fuel ◽  
Diesel Operation

The expediency of the search, development and use of alternative environmentally friendly motor fuels is scientifically substantiated, the main of which is the use of gas fuel, which is much more efficient than diesel fuel in terms of overall environmental safety. The relevance of the research carried out and the developments proposed in this article will make it possible to realize the fundamental complex advantages of the ecological and operational nature of the use of the gas-diesel cycle of the ICE operation. This is in line with the Paris Protocol on a climate to reduce greenhouse gas emissions to keep the global average temperature rising. The paper describes the main features and methods of converting diesel engines to their compressed natural gas power supply. The advantages and disadvantages of all methods of implementing the gas-diesel cycle on existing diesel installations of low and high power are analyzed in detail. The main operations and changes in operating parameters for each method of implementing the gas-diesel cycle on operating diesel engines are also described. The use of a mixed quantitative and qualitative control of the supply of compressed gas and diesel fuel for various loads of a diesel engine operating on a gas-diesel cycle has been scientifically substantiated. The systematization is carried out and the comparative characteristics of liquid and gas motor fuels, which can be used for the implementation of the gas-diesel cycle in diesel engines, are presented in tabular form, general conclusions are described.

scholarly journals What should be a gas-engine locomotive

2020 ◽  
Vol 157 ◽  
pp. 01004
Author(s):  
Evgeny Kossov ◽  
Ivan Andronchev ◽  
Vitaliy Asabin ◽  
Anatoly Silyuta ◽  
Lidia Kossova
Keyword(s):  
Diesel Engine ◽  
Gas Turbine ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Crucial Role ◽  
Environmental Safety ◽  
Gas Engine ◽  
Diesel Cycle ◽  
Gas Fuel ◽  
Design And Construction

Today, no one doubts the necessity of widespread applying of gas fuel both in industry and in transport. The price, environmental safety and availability of this type of fuel play a crucial role. Russian Railways has also taken a number of decisions to develop the design and construction of gas-fueled locomotives. The work is being carried out in two directions: locomotives will be created that run on gas fuel using gas turbine and gas piston engines with full replacement of diesel fuel, as well as gas locomotives with diesel engines that run on a gas-diesel cycle. The latter are attractive because the gas-diesel engine has higher technical and economic characteristics and can be easily transformed into a locomotive running on diesel fuel, which can be of strategic importance.

scholarly journals Development of a Generic Dual Fuel ECU for Common Rail Diesel Engine Control

2021 ◽  
Author(s):  
◽  
Luke James Frogley
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Operation

<p>Rising costs of diesel fuel has led to an increased interest in dual fuel diesel engine conversion, which can offset diesel consumption though the simultaneous combustion of a secondary gaseous fuel. This system offers benefits both environmentally and financially in an increasingly energy-conscious society. Dual fuel engine conversions have previously been fitted to mechanical injection systems, requiring physical modification of the fuel pump. The aim of this work is to develop a novel electronic dual fuel control system that may be installed on any modern diesel engine using common rail fuel injection with solenoid injector valves, eliminating the need for mechanical modification of the diesel fuel system.  The dual fuel electronic control unit developed replaces up to 90 percent of the diesel fuel required with cleaner-burning and cheaper compressed natural gas, providing the same power output with lower greenhouse gas emissions than pure diesel. The dual fuel system developed controls the flow of diesel, gas, air, and engine timing to ensure combustion is optimised to maintain a specific torque at a given speed and demand. During controlled experimental analysis, the dual fuel system exceeded the target substitution rate of 90 precent, with a peak diesel substitution achieved of 97 percent, whilst maintaining the same torque performance of the engine under diesel operation.</p>

scholarly journals The analysis of the potential for the use of gaseous fuels in the municipal bus transport in Poland – part 1

2012 ◽  
Vol 148 (1) ◽  
pp. 82-88
Author(s):  
Wojciech GIS ◽  
Edward MENES ◽  
Jerzy WAŚKIEWICZ
Keyword(s):  
Natural Gas ◽  
Diesel Engines ◽  
Road Transport ◽  
Current Level ◽  
Combustion Engines ◽  
Compressed Natural Gas ◽  
Gaseous Fuels ◽  
Advantages And Disadvantages ◽  
Ecological Aspects ◽  
Bus Transport

The paper discusses issues related to the use of compressed natural gas (CNG) in combustion engines particularly in municipal bus transport. The ecological aspects of the use of natural gas in road transport have been analyzed particularly the exhaust emissions in comparison to the emissions from diesel engines. Advantages and disadvantages of natural gas fueling as well as the current level of CNG use in transport have been presented both in Poland and worldwide. The authors have also indicated the motivating arguments for the use of natural gas.

scholarly journals GAS SEBAGAI ENERGI ALTERNATIF PADA PENGERAK KAPAL

2018 ◽  
Author(s):  
Purwanto ◽  
Haryono
Keyword(s):  
Natural Gas ◽  
Diesel Fuel ◽  
Low Pressure ◽  
Liquefied Petroleum Gas ◽  
Compressed Natural Gas ◽  
Environment Friendly ◽  
Gas Emissions ◽  
Household Sector ◽  
Transportation Sector ◽  
Gas Fuel

<p>Liquefied Petroleum Gas (LPG) usage is liquefied petroleum gas which being melted by adding pressure and lowering the temperature, then the gas will turn into liquid. Butane (C4H10) and propane (C3H8) are the dominating components. The need for Liquefied Petroleum Gas (LPG) especially for the household sector is more effective when using the complement of 3 kg of LPG. Gas fuel for transportations is more suitable when using Compressed Natural Gas (CNG), which is a compressed natural gas as gas fuel. It is considered cleaner and environment friendly than gasoline and diesel fuel because of the gas emissions waste. This CNG is made by compressing methane (CN4) extracted from natural gas then stored and distributed in a pressure pneumatic. Gas for fuel will increase the engine workload, so it tends to increase the consumption of the fuel. However, the gas low pressure on the transportation sector can decrease the compression on the machines. It will reduce the capital up to 50%.</p><p><strong><em>Keywords :</em><em> Gas, Alternative, Ship’s Propulsion</em></strong></p><p> </p><p>Pemakain Gas Liquified Petroleum Gas (LPG)  yaitu gas minyak bumi yang dicairkan  dengan menambah tekanan dan menurunkan suhunya, gas akan berubah menjadi cair. Butana (C<sub>4</sub>H<sub>10</sub>) dan Propana (C<sub>3</sub>H<sub>8</sub>) merupakan komponen yang mendominasi.  Kebutuhan akan (LPG) khususnya untuk sektor rumah tangga efektif  mengunakan sebagai komplemen LPG 3 Kg. Sedangkan Bahan Bakar Gas untuk  sektor  transportasi darat dan transportasi laut lebih tepat mengunakan Compressed Natural Gas (CNG) yaitu merupakan Gas Alam yang terkompresi sebagai bahan bakar gas (BBG) yang  diangap lebih bersih jika dibandingkan dua bahan bakar minyak yaitu bensin dan solar karena emisi gas buangnya yang ramah lingkungan. CNG ini dibuat dengan  melakukan kompresi metana (CH<sub>4</sub>) yang diekstrak dari gas alam yang disimpan dan didistribusikan dalam bejana tekan. Bahan bakar gas sektor transportasi akan menambah beban mesin sehinga akan cenderung meningkatkan konsumsi specifik bahan bakar kendaraan bermotor. Namun demikian tekanan kerja Bahan Bakar Gas sektor transportasi rendah sehingga dapat menurunkan  kompresi pada mesin, maka  akan menekan biaya operasinal sampai 50%.</p><p><strong>Kata kunci  : <em>Bahan Bakar Gas, Compressed Natural Gas, Energy</em></strong></p>

scholarly journals Development of a Generic Dual Fuel ECU for Common Rail Diesel Engine Control

2021 ◽  
Author(s):  
◽  
Luke James Frogley
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Operation

<p>Rising costs of diesel fuel has led to an increased interest in dual fuel diesel engine conversion, which can offset diesel consumption though the simultaneous combustion of a secondary gaseous fuel. This system offers benefits both environmentally and financially in an increasingly energy-conscious society. Dual fuel engine conversions have previously been fitted to mechanical injection systems, requiring physical modification of the fuel pump. The aim of this work is to develop a novel electronic dual fuel control system that may be installed on any modern diesel engine using common rail fuel injection with solenoid injector valves, eliminating the need for mechanical modification of the diesel fuel system.  The dual fuel electronic control unit developed replaces up to 90 percent of the diesel fuel required with cleaner-burning and cheaper compressed natural gas, providing the same power output with lower greenhouse gas emissions than pure diesel. The dual fuel system developed controls the flow of diesel, gas, air, and engine timing to ensure combustion is optimised to maintain a specific torque at a given speed and demand. During controlled experimental analysis, the dual fuel system exceeded the target substitution rate of 90 precent, with a peak diesel substitution achieved of 97 percent, whilst maintaining the same torque performance of the engine under diesel operation.</p>

DEVELOPMENT OF THE COMBUSTION CHAMBER OF GAS ENGINE, CONVERTED ON THE BASIS OF DIESELS D-120 OR D-144 ENGINES TO WORK FOR ON LIQUEFIED PETROLEUM GAS

2019 ◽  
pp. 2-8
Author(s):  
Serhii Kovalov
Keyword(s):  
Combustion Chamber ◽  
Compression Ratio ◽  
Diesel Engines ◽  
Combustion Engine ◽  
Motor Fuel ◽  
Liquefied Petroleum Gas ◽  
Gas Engine ◽  
Chamber Volume ◽  
Motor Fuels ◽  
Dynamic Cycle

The expediency of using vehicles of liquefied petroleum gas as a motor fuel, as com-pared with traditional liquid motor fuels, in particular with diesel fuel, is shown. The advantages of converting diesel engines into gas ICEs with forced ignition with respect to conversion into gas diesel engines are substantiated. The analysis of methods for reducing the compression ratio in diesel engines when converting them into gas ICEs with forced ignition has been carried out. It is shown that for converting diesel engines into gas ICEs with forced ignition, it is advisable to use the Otto thermo-dynamic cycle with a decrease in the geometric degree of compression. The choice is grounded and an open combustion chamber in the form of an inverted axisymmetric “truncated cone” is developed. The proposed shape of the combustion chamber of a gas internal combustion engine for operation in the LPG reduces the geometric compression ratio of D-120 and D-144 diesel engines with an unseparated spherical combustion chamber, which reduces the geometric compression ratio from ε = 16,5 to ε = 9,4. The developed form of the combustion chamber allows the new diesel pistons or diesel pistons which are in operation to be in operation to be refined, instead of making special new gas pistons and to reduce the geometric compression ratio of diesel engines only by increasing the combustion chamber volume in the piston. This method of reducing the geometric degree of compression using conventional lathes is the most technologically advanced and cheap, as well as the least time consuming. Keywords: self-propelled chassis SSh-2540, wheeled tractors, diesel engines D-120 and D-144, gas engine with forced ignition, liquefied petroleum gas (LPG), compression ratio of the internal com-bustion engine, vehicles operating in the LPG.

RESEARCH OF INDICATORS OF A VEHICLE WITH A DIESEL WORKING ON DIESEL AND DIESEL GAS CYCLES USING THE MATHEMATICAL MODEL

2020 ◽  
pp. 14-19
Author(s):  
Serhii Kovbasenko ◽  
Andriy Holyk ◽  
Serhii Hutarevych
Keyword(s):  
Mathematical Model ◽  
Diesel Engine ◽  
Environmental Performance ◽  
Energy Performance ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Vehicles ◽  
Diesel Cycle ◽  
The Mathematical Model

The features of an advanced mathematical model of motion of a truck with a diesel engine operating on the diesel and diesel gas cycles are presented in the article. As a result of calculations using the mathematical model, a decrease in total mass emissions as a result of carbon monoxide emissions is observed due to a decrease in emissions of nitrogen oxides and emissions of soot in the diesel gas cycle compared to the diesel cycle. The mathematical model of a motion of a truck on a city driving cycle according to GOST 20306-90 allows to study the fuel-economic, environmental and energy indicators of a diesel and diesel gas vehicle. The results of the calculations on the mathematical model will make it possible to conclude on the feasibility of converting diesel vehicles to using compressed natural gas. Object of the study – the fuel-economic, environmental and energy performance diesel engine that runs on dual fuel system using CNG. Purpose of the study – study of changes in fuel, economic, environmental and energy performance of vehicles with diesel engines operating on diesel and diesel gas cycles, according to urban driving cycle modes. Method of the study – calculations on a mathematical model and comparison of results with road tests. Bench and road tests, results of calculations on the mathematical model of motion of a truck with diesel, working on diesel and diesel gas cycles, show the improvement of environmental performance of diesel vehicles during the converting to compressed natural gas in operation. Improvement of environmental performance is obtained mainly through the reduction of soot emissions and nitrogen oxides emissions from diesel gas cycle operations compared to diesel cycle operations. The results of the article can be used to further develop dual fuel system using CNG. Keywords: diesel engine, diesel gas engine, CNG

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