BENCH TESTS OF A CATALYTIC CONVERTER UNIT WITH A CATALYST LAYER ON THE SURFACE OF GLASS-CRYSTAL MEDIATORS

Abstract

The article examines the problems of industrial gas emissions and vehicle emissions as the main sources of environmental pollution. The article focuses on the importance of catalytic conversion as a modern method of cleaning gas emissions, but points to the need for further improvement of catalytic converter designs. The authors point out the shortcomings in the production of mechanically strong and thermally stable catalysts and their carriers, as well as the limitations of existing calculation and design methods. The article experimentally shows approaches to increasing the efficiency of catalytic conversion of gas emissions, and also provides a comparative analysis of the efficiency of the developed catalytic converter and its industrial analogue. The article presents experimental research on the motor stand using the VAZ-21081i engine, presents technical characteristics and tools of control and measurement equipment. The developed catalytic converter, its design and characteristics are considered. Key attention in the article is given to the program and methodology of testing catalytic converters and processing the results: including the system for measuring temperatures, velocity and composition of the outgoing gases. In experimental studies, the influence of the load on the internal combustion engine on the temperature and speed of the flow of exhaust gases is analyzed. The analysis of the results of the experiments shows that an increase in the load on the engine leads to an increase in the temperature and speed of the flow of exhaust gases. The authors use the mathematical model of the conversion of gas emissions, developed in previous works, and experimentally prove that increasing the load on the engine contributes to more efficient purification of gases from carbon (II) oxide and hydrocarbons. The extremum of the dependence of the degree of conversion of carbon (II) oxide and hydrocarbons on engine power was revealed, where an increase in load leads to a decrease in the degree of gas purification. Comparative tests show the high efficiency of the experimental catalytic converter compared to the industrial analogue.