scholarly journals Study of method for reducing fuel consumption and amount of specific emissions of harmful substances with exhaust gases of passenger cars when using “climate control” system

2018 ◽  
Vol 357 ◽  
pp. 012005
Author(s):  
L N Burakova ◽  
I A Anisimov ◽  
A D Burakova ◽  
O D Burakova
Keyword(s):  
Control System ◽  
Fuel Consumption ◽  
Climate Control ◽  
Passenger Cars ◽  
Exhaust Gases ◽  
Specific Emissions ◽  
Harmful Substances ◽  
Emissions Of Harmful Substances

scholarly journals Study of the influenceof the «climate control» installation on fuel consumption and emissions of harmful substances by cars at idle with a running enginee

2019 ◽  
pp. 10-20
Author(s):  
A.D. Gorbunova ◽  
I.A. Anisimov ◽  
L.N. Burakova ◽  
S.A. Klement’ev
Keyword(s):  
Fuel Consumption ◽  
Experimental Studies ◽  
Climate Control ◽  
Passenger Cars ◽  
Exhaust Gases ◽  
Light Reflectance ◽  
Specific Emissions ◽  
Harmful Substances ◽  
Opaque Body ◽  
Emissions Of Harmful Substances

The article is devoted to the issue of improving fuel efficiency and environmental friendliness of cars serving the administrative and management personnel of the oil and gas complex. It is established that the effective ambient temperature, the color of opaque body elements, the power of the internal combustion engine and the passenger compartment volume of the car affects the fuel consumption and the number of specific emissions of harmful substances with exhaust gases when using the «climate control» installation. However, the simplest controllable factor is the color of the opaque body elements, which is characterized by light reflectance. In the course of experimental studies, the dependences of the change in fuel consumption and the share of reducing emissions of harmful substances from exhaust gases of passenger cars with the «climate control» installation on the light reflectance were established. A method has been developed to reduce fuel consumption and the number of specific emissions of harmful substances from exhaust gases of passenger cars with the «climate control» installation, which consists in imparting white color to the vehicle roof and allows reducing fuel consumption by 5.5–10.3 %, and specific emissions of harmful substances by 0.8–2.3 %.

scholarly journals Ensuring Requirements for Emissions of Harmful Substances of Diesel Engines

2020 ◽  
Vol 19 (4) ◽  
pp. 305-310
Author(s):  
G. M. Kuharonak ◽  
D. V. Kapskiy ◽  
V. I. Berezun
Keyword(s):  
Diesel Engine ◽  
Nitrogen Oxides ◽  
Fuel Consumption ◽  
Exhaust Gas Recirculation ◽  
Exhaust Gas ◽  
Average Temperature ◽  
Dispersed Particles ◽  
Harmful Substances ◽  
Gas Recirculation ◽  
Emissions Of Harmful Substances

The purpose of this work is to consider the requirements for emissions of harmful substances of diesel engines by selecting design and adjustment parameters that determine the organization of the workflow, and the exhaust gas cleaning system, taking into account the reduction of fuel consumption. Design elements and geometric characteristics of structures for a turbocharged diesel engine of Д-245 series produced by JSC HMC Minsk Motor Plant (4ЧН11/12.5) with a capacity of 90 kW equipped with an electronically controlled battery fuel injection have been developed: exhaust gas recirculation along the high pressure circuit, shape and dimensions of the combustion chamber, the number and angular arrangement of the nozzle openings in a nozzle atomizer, and inlet channels of the cylinder head. Methods for organizing a workflow are proposed that take into account the shape of the indicator diagrams and affect the emissions of nitrogen oxides and dispersed particles differently. Their implementation allows us to determine the boundary ranges of changes in the control parameters of the fuel supply and exhaust gas recirculation systems when determining the area of minimizing the specific effective fuel consumption and the range of studies for the environmental performance of a diesel engine. The paper presents results of the study on the ways to meet  the requirements for emissions of harmful substances, obtained by considering options for the organization of working processes, taking into account the reduction in specific effective fuel consumption, changes in the average temperature of the exhaust gases and diesel equipment. To evaluate these methods, the following indicators have been identified: changes in specific fuel consumption and average temperature of the toxicity cycle relative to the base cycle, the necessary degree of conversion of the purification system for dispersed particles and NOx. Recommendations are given on choosing a diesel engine to meet Stage 4 emission standards for nitrogen oxides and dispersed particles.

scholarly journals ЗМЕНШЕННЯ ВИКИДІВ СУДНОВОГО ДИЗЕЛЯ УТИЛІЗАЦІЄЮ ТЕПЛОТИ РЕЦИРКУЛЯЦІЙНИХ ГАЗІВ ЕЖЕКТОРНОЮ ХОЛОДИЛЬНОЮ МАШИНОЮ

2019 ◽  
pp. 20-24
Author(s):  
Максим Андрійович Пирисунько ◽  
Роман Миколайович Радченко ◽  
Андрій Адольфович Андреєв ◽  
Вікторія Сергіївна Корнієнко
Keyword(s):  
Nitrogen Oxides ◽  
Alternative Fuels ◽  
Exhaust Gas ◽  
Exhaust Gases ◽  
Harmful Emissions ◽  
Harmful Substances ◽  
Main Engine ◽  
Gas Recirculation ◽  
Refrigeration Machine ◽  
Emissions Of Harmful Substances

The problem of air basin pollution of the World Ocean with harmful emissions from the exhaust gases of marine diesel engines is primarily associated with the creation of highly efficient technologies for the neutralization of nitrogen oxides NOx on exhaust gases from a diesel engine. Emissions of harmful substances from the combustion of marine fuels are limited by international atmospheric protection programs and the requirements of the International Maritime Organization (IMO). The requirements relate to almost all groups of harmful emissions in marine engines and the more stringent of them are primarily related to nitrogen oxides NOx and sulfur oxides SOx. To reduce harmful emissions from exhaust gases into the environment, scientists and world engine leaders use and suggest various methods for reducing the content of harmful substances in exhaust gases. The implementation of new standards in the areas of further improvement of the working process, the use of alternative fuels, fuel, and air additives, as well as selective catalytic reduction systems do not preclude further development of scientific research in the field of exhaust gas cleaning. One of the promising ways in environmentalizing marine internal combustion engines is the neutralization of harmful substances in exhaust gases through particular gas recirculation (EGR-technology). However, the use of such techniques conflicts with the engine's energy efficiency. In the work presented, the scheme-design solution of the exhaust gas recirculation system with using the heat of recirculation gases by an ejector refrigeration machine for cooling the air at the intake of ship's main engine is proposed. The effect of using the heat of recirculation gases for cooling the air at the intake of the engine is analyzed taking into account the changing climatic conditions for a particular vessel's route line. It is shown that the use of an ejector refrigeration machine reduces the air temperature at the entrance of the main engine by 5…15 ° С, which reduces the specific fuel consumption. This reduces emissions of harmful substances when the engine is running with recirculation of gases.

scholarly journals HARDWARE AND SOFTWARE OF AUTOMATIC CONTROL SYSTEM OF FUEL COMBUSTION PROCESS IN LOW AND MEDIUM POWER BOILERS. PART 2. ALGORITHMIC SOFTWARE

2021 ◽  
pp. 65-75
Author(s):  
Arthur Zaporozhets ◽  
Yurii Kuts
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Operating Systems ◽  
Combustion Process ◽  
Fuel Combustion ◽  
Programming Environment ◽  
Exhaust Gases ◽  
Boiler Units ◽  
Harmful Substances ◽  
Made In

The efficiency of the functioning of boiler units depends on the availability of reliable information on the progress of technological processes. The lack of control and measuring systems for the composition of the exhaust gases leads to low efficiency of the boiler unit, in particular, due to poor-quality fuel combustion. Therefore, in modern operating conditions of boiler units, it is relevant to develop technological solutions focused on finding and minimizing the causes and mechanisms of the formation of harmful substances in exhaust gases. Due to the fact that replacement of outdated boiler units with new ones requires significant capital investments, a promising direction is the modernization of existing boiler units. It is a low-cost and efficient way of rational use of fuel while simultaneously reducing the level of harmful substances in exhaust gases. It remains relevant to ensure the functioning of the control systems for the composition of the air-fuel mixture (AFM) with a given speed and high reliability of maintaining the excess air ratio (EAR) at the stoichiometric level. In the article the high-quality algorithm is proposed for the operation of an automatic control system for the combustion of fuel in boilers of medium and low power by regulating the ratio of the components of the AFM for the burner with feedback according to the signals of the oxygen sensor. The algorithms for the operation of the frequency regulator of the ratio of the components of the AFM in various operating modes are considered. The developed algorithms allowed maintaining the stoichiometric air-fuel ratio in the boiler furnace, reducing the level of toxic emissions into the atmosphere and increasing the boiler efficiency by optimizing the fuel combustion process. The AFM ratio programmer is made in the LM Programmer technical programming environment and works with Windows operating systems (XP, Vista, 7, 8, 10) and oxygen sensors manufactured by Bosch. The visualization of the control process of the fuel combustion process is made in the technical programming environment LogWorks 3 and operates in the environment of Windows operating systems.

ASSESSING THE EFFECT OF ANTIFRICTION ADDITIVE ON ECONOMIC, POWER AND ENVIRONMENTAL INDICATORS OF INTERNAL COMBUSTION ENGINES

2020 ◽  
pp. 50-58
Author(s):  
ALEKSEI B. LAGUZIN1 ◽  
◽  
SERGEI M. GAIDAR ◽  
ALEKSANDR V. PYDRIN ◽  
ABDULZAHRA FARHOOD NAJI NAJM ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Fuel Consumption ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Environmental Indicators ◽  
Engine Oil ◽  
Engine Operation ◽  
Antifriction Additive ◽  
Exhaust Gases ◽  
Harmful Substances

To determine eff ectiveness and feasibility of using an antifriction additive, the authors carried out comparative bench tests of an internal combustion engine VAZ-11194 No. 000094 of environmental class 5, with and without using an antifriction additive to Lukoil Genesis 5W-30 oil. The studies were carried out in accordance with GOST 14846 “Automotive Engines, Bench Test Methods”, UN Regulation No. 49 (emissions of carbon monoxide, hydrocarbons, nitrogen oxides with exhaust gases) and UN Regulation No.85 (performance indicators). During the tests, harmful substances with exhaust gases (CO, CH, NOx) emissions,engine power indicators and fuel consumption were evaluated. The tests were carried out according to presented method after 5, 50 and 100 hours of engine operation. The test results recorded an increase in power by 4.1%, in engine torque by 3.5…4.0% with a decrease in specifi c fuel consumption by 6…7% after 100 hours of engine operation with the use of an antifriction additive in engine oil. During the test period, harmful substances concentration in engine exhaust gases decreased: CO to 21.6%, CH to 18.3%, and NOx to 27.6%. A conclusion has been formulated on the eff ectiveness of using antifriction additives in terms of improving environmental, economic and power indicators of an internal combustion engine

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