Determination of fuel consumption and concentration of harmful substances for warming the engine of a car in conditions of low ambient temperatures
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2018, Vol 82, Issue 2
Abstract
Recently, there has been a rapid increase in the use of motor transport and its concentration in cities. This is the reason why atmospheric air pollution by exhaust gases is currently considered the most urgent problem. The degree of pollution of atmospheric air depends primarily on the qualitative and quantitative composition of the exhaust gases. The content of harmful substances in the exhaust gases of cars is affected by a number of important factors: the type of engine and the features of its design, its technical condition, operating modes and other factors. The methods of automobile engine warming up and their influence on fuel consumption and dynamics of change of concentrations of harmful substances are investigated. It was established that the method of engine warming significantly affects both the time of engine and neutralization heating and fuel consumption by the engine of the car and on the reduction of concentrations of carbon monoxide and hydrocarbons upon entering the operating mode. The combined mode is defined, which is the most appropriate when setting the optimal ratios of heating time in idle mode and in motion. Obtained data are promising for further evaluation of methods in terms of environmental pollution.
Authors and Affiliations
N. O. Kukhtyk
Influence of the microstructure of a diamond-containing composite material on the tool cutting ability when grinding a diamond single crystal
Using the methods of electronic scanning microstructure and X-ray analysis, the influence of the structure of diamond-containing composite materials on the cutting ability of the tool for circular grinding of diamond sin...
Psychosemantic image of a worker as the factor of enterprise’s labor force formation
The presented paper depicts the conducted empirical study of the image of a successful laborer in the perception of student youth. The sample of participants was formed with the students of two Zhytomyr universities (Zhy...
Management of technological processes for producing energy bars from natural ingredients in hotel and restaurant entities
The high level of competitiveness among the hotel and restaurant entities motivates their management to investigate the market needs continuously and to respond to the current market changes, which also include the react...
Specificities of choosing of tolerances of the rolling bearings and of the parameters of geometry precision of the shaft and housing surfaces
The standards and methods concerning assignment of rolling bearing fit with shafts and frames via example of bearing 6-208 are analyzed. We set certain differences of recommendations according to GOST 3325-85, "Rolling b...
The solution of the reliability problem in the repair process of the plates of the silica bricks press boxes
The research analyzes recommendations existing in different sources of information for the choice of methods of strengthening and reconditioning of worn machine parts. These methods include: the method of electric arc de...