Mykola Bannikov - Academia.edu (original) (raw)
Papers by Mykola Bannikov
This research was a part of the project aimed at the increase in power of the direct injection tu... more This research was a part of the project aimed at the increase in power of the direct injection turbocharged twelve-cylinder V-type diesel engine. Crankshaft of a high power high speed diesel engine is subjected to complex loading conditions and undergoes high cyclic loads of the order of 10 7 to 10 8 cycles. Therefore, durability of this component is of critical importance. Strength analysis was based on the assessment of factor of safety (FOS) of the engine augmented by brake mean effective pressure (bmep) and/or engine speed. In the first part of the study, mechanical loads due to gas pressure and inertia forces were obtained from engine cycle simulation. Relationships for displacement, velocity and acceleration of an articulated connecting rod piston as a function of engine geometry and crank angle were derived. In the second part, the range of bmep and engine speed was determined over which engine performance is satisfactory on the basis of fatigue. It was shown that with limitations imposed (unchanged design and material of the crankshaft) the crankshaft of the given engine can withstand increase in power up to 15%. It was recommended, that required increase in engine power should be realized by the increase in bmep, since the increase in engine speed would deteriorate combustion efficiency. Finite Element Analysis was used to verify stresses calculations. New features of procedure used and relationships obtained in this research apply to strength analysis of other types of internal combustion engines.
This research was a part of the project aimed at the increase in power of the direct injection tu... more This research was a part of the project aimed at the increase in power of the direct injection turbocharged twelve-cylinder V-type diesel engine. Crankshaft of a high power high speed diesel engine is subjected to complex loading conditions and undergoes high cyclic loads of the order of 10 7 to 10 8 cycles. Therefore, durability of this component is of critical importance. Strength analysis was based on the assessment of factor of safety (FOS) of the engine augmented by brake mean effective pressure (bmep) and/or engine speed. In the first part of the study, mechanical loads due to gas pressure and inertia forces were obtained from engine cycle simulation. Relationships for displacement, velocity and acceleration of an articulated connecting rod piston as a function of engine geometry and crank angle were derived. In the second part, the range of bmep and engine speed was determined over which engine performance is satisfactory on the basis of fatigue. It was shown that with limitations imposed (unchanged design and material of the crankshaft) the crankshaft of the given engine can withstand increase in power up to 15%. It was recommended, that required increase in engine power should be realized by the increase in bmep, since the increase in engine speed would deteriorate combustion efficiency. Finite Element Analysis was used to verify stresses calculations. New features of procedure used and relationships obtained in this research apply to strength analysis of other types of internal combustion engines.
IIUM Engineering Journal
In this paper, the applicability of Ion Beam Processing Technology for making catalysts has been ... more In this paper, the applicability of Ion Beam Processing Technology for making catalysts has been inves-tigated. Ceramic substrates of different shapes and metal fibre tablets were implanted by platinum ions and tested in nitrogen oxides (NOx) and carbon monoxide (CO) conversion reactions. Effectiveness of the implanted catalysts was compared to that of the commercially produced platinum catalysts made by impregnation. Platinum-implanted catalyst having fifteen times less platinum content showed the same CO conversion efficiency as the commercially pro-duced catalyst. It was revealed that the effectiveness of the platinum-implanted catalyst has complex dependence on the process parameters and the optimum can be achieved by varying the ions energy and the duration of implantation. Investigation of the pore structure showed that ion implantation did not decrease the specific surface area of the catalyst.Key Words: Catalyst, Ion Implantation, Noble metals.
15th International Multidisciplinary Scientific GeoConference SGEM2015, ENERGY AND CLEAN TECHNOLOGIES, 2011
ABSTRACT Diesel engine designed to operate on the regular diesel oil shows unsatisfactory perform... more ABSTRACT Diesel engine designed to operate on the regular diesel oil shows unsatisfactory performance with biodiesel. The reason is the difference in fuel’s properties. The negative effect of biodiesel properties could be mitigated by use of fuel additives. Goal of this research was the improvement of the performance of diesel engine running on biodiesel by addition of butanol. Jatropha biodiesel and its blends with butanol have been tested in the four stroke direct injection air cooled diesel engine. The engine fuelled with the blend made up of 80% of biodiesel and 20% of butanol has shown improved by 2% fuel conversion efficiency and decreased by 3% nitrogen oxides, by 17% smoke, and by 15% carbon monoxide emissions in comparison with pure biodiesel. Analysis of fuel injection and combustion characteristics revealed that such a change in engine outputs was the net result of an earlier by 0.5 degree start of fuel injection, longer by 1.2 degree ignition delay period and later by 0.8 degree start of combustion of blend as compared to pure biodiesel. It was also shown that effect of butanol is proportional to its fraction in the blend. It was also concluded that satisfactory engine operation with biodiesel can be achieved by alcohol additive without engine modification.
International Journal of Fluid Mechanics Research, 2014
Alcohols have been used as an additive to diesel fuel. Two methods of alcohol addition have been ... more Alcohols have been used as an additive to diesel fuel. Two methods of alcohol addition have been considered: blending and fumigation. The effects of both methods on the performance and emissions of diesel engine have been studied and compared. The analysis was based on the fuel injection and combustion characteristics derived from indicator diagrams. The pros and cons of both methods have been emphasized and the recommendations of their application provided.
This research was a part of the project aimed at the increase in power of the direct injection tu... more This research was a part of the project aimed at the increase in power of the direct injection turbocharged twelve-cylinder V-type diesel engine. Crankshaft of a high power high speed diesel engine is subjected to complex loading conditions and undergoes high cyclic loads of the order of 10 7 to 10 8 cycles. Therefore, durability of this component is of critical importance. Strength analysis was based on the assessment of factor of safety (FOS) of the engine augmented by brake mean effective pressure (bmep) and/or engine speed. In the first part of the study, mechanical loads due to gas pressure and inertia forces were obtained from engine cycle simulation. Relationships for displacement, velocity and acceleration of an articulated connecting rod piston as a function of engine geometry and crank angle were derived. In the second part, the range of bmep and engine speed was determined over which engine performance is satisfactory on the basis of fatigue. It was shown that with limitations imposed (unchanged design and material of the crankshaft) the crankshaft of the given engine can withstand increase in power up to 15%. It was recommended, that required increase in engine power should be realized by the increase in bmep, since the increase in engine speed would deteriorate combustion efficiency. Finite Element Analysis was used to verify stresses calculations. New features of procedure used and relationships obtained in this research apply to strength analysis of other types of internal combustion engines.
This research was a part of the project aimed at the increase in power of the direct injection tu... more This research was a part of the project aimed at the increase in power of the direct injection turbocharged twelve-cylinder V-type diesel engine. Crankshaft of a high power high speed diesel engine is subjected to complex loading conditions and undergoes high cyclic loads of the order of 10 7 to 10 8 cycles. Therefore, durability of this component is of critical importance. Strength analysis was based on the assessment of factor of safety (FOS) of the engine augmented by brake mean effective pressure (bmep) and/or engine speed. In the first part of the study, mechanical loads due to gas pressure and inertia forces were obtained from engine cycle simulation. Relationships for displacement, velocity and acceleration of an articulated connecting rod piston as a function of engine geometry and crank angle were derived. In the second part, the range of bmep and engine speed was determined over which engine performance is satisfactory on the basis of fatigue. It was shown that with limitations imposed (unchanged design and material of the crankshaft) the crankshaft of the given engine can withstand increase in power up to 15%. It was recommended, that required increase in engine power should be realized by the increase in bmep, since the increase in engine speed would deteriorate combustion efficiency. Finite Element Analysis was used to verify stresses calculations. New features of procedure used and relationships obtained in this research apply to strength analysis of other types of internal combustion engines.
IIUM Engineering Journal
In this paper, the applicability of Ion Beam Processing Technology for making catalysts has been ... more In this paper, the applicability of Ion Beam Processing Technology for making catalysts has been inves-tigated. Ceramic substrates of different shapes and metal fibre tablets were implanted by platinum ions and tested in nitrogen oxides (NOx) and carbon monoxide (CO) conversion reactions. Effectiveness of the implanted catalysts was compared to that of the commercially produced platinum catalysts made by impregnation. Platinum-implanted catalyst having fifteen times less platinum content showed the same CO conversion efficiency as the commercially pro-duced catalyst. It was revealed that the effectiveness of the platinum-implanted catalyst has complex dependence on the process parameters and the optimum can be achieved by varying the ions energy and the duration of implantation. Investigation of the pore structure showed that ion implantation did not decrease the specific surface area of the catalyst.Key Words: Catalyst, Ion Implantation, Noble metals.
15th International Multidisciplinary Scientific GeoConference SGEM2015, ENERGY AND CLEAN TECHNOLOGIES, 2011
ABSTRACT Diesel engine designed to operate on the regular diesel oil shows unsatisfactory perform... more ABSTRACT Diesel engine designed to operate on the regular diesel oil shows unsatisfactory performance with biodiesel. The reason is the difference in fuel’s properties. The negative effect of biodiesel properties could be mitigated by use of fuel additives. Goal of this research was the improvement of the performance of diesel engine running on biodiesel by addition of butanol. Jatropha biodiesel and its blends with butanol have been tested in the four stroke direct injection air cooled diesel engine. The engine fuelled with the blend made up of 80% of biodiesel and 20% of butanol has shown improved by 2% fuel conversion efficiency and decreased by 3% nitrogen oxides, by 17% smoke, and by 15% carbon monoxide emissions in comparison with pure biodiesel. Analysis of fuel injection and combustion characteristics revealed that such a change in engine outputs was the net result of an earlier by 0.5 degree start of fuel injection, longer by 1.2 degree ignition delay period and later by 0.8 degree start of combustion of blend as compared to pure biodiesel. It was also shown that effect of butanol is proportional to its fraction in the blend. It was also concluded that satisfactory engine operation with biodiesel can be achieved by alcohol additive without engine modification.
International Journal of Fluid Mechanics Research, 2014
Alcohols have been used as an additive to diesel fuel. Two methods of alcohol addition have been ... more Alcohols have been used as an additive to diesel fuel. Two methods of alcohol addition have been considered: blending and fumigation. The effects of both methods on the performance and emissions of diesel engine have been studied and compared. The analysis was based on the fuel injection and combustion characteristics derived from indicator diagrams. The pros and cons of both methods have been emphasized and the recommendations of their application provided.