Thermogasdynamics of physical and energy processes in alternative technologies

Русанов, Андрей Викторович; Solovey, V.V.; Zipunnikov, Mykola; Шевченко, А. А.

doi:10.15587/978-617-7319-18-3

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Work [10] shows that the thermodynamic unevenness of plasma-chemical processes, which are characterized by the oscillatory-excited electronic state of reagents, makes it possible to increase the energy efficiency of endothermic reactions. The reason for the high efficiency [11] of non-equilibrium processes is selectivity, that is, the localization of discharge energy only on the main channel of the chemical reaction. Despite many difficulties in modeling the interaction of plasma-liquid, in recent years significant progress has been made in resolving the issue of linking the kinetics of gas-phase plasma with the liquid [12].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Owing to the devised procedure for maintaining the dynamically stabilized non-equilibrium properties of plasma, the reaction at a pressure of 0.1-4.0 MPa is ensured. With plasma-chemical conversion methods, energy consumption for the process is reduced to covering the enthalpy of the reaction with an energy utilization rate of about 80 % [11]. At the same time, the cost of highly organized and, as a result, the most expensive electricity is 25-30 % while the rest of the energy contribution is provided by the chemical energy of carbon contained in the starting materials.…”

Section: Analysis Of Carbon Hydrogen-containing Gas Mixtures At the I...mentioning

confidence: 99%

See 1 more Smart Citation

Revealing the effect of plasma-chemical treatment of propane-butane fuel on the environmental characteristics of the internal combustion engine

Авраменко

Внукова

Kozlovskyi

et al. 2022

EEJET

View full text Add to dashboard Cite

One of the key problems of modern engine construction is the improvement of environmental performance while ensuring a competitive price of produced engines. This is achieved using state-of-the-art control systems, expensive fuel equipment, and complex exhaust gas neutralization systems. The search for ways to improve the environmental performance of transport engines without significant complication of their structure is a priority area of modern research. Plasma chemical treatment of gas makes it possible to reduce the level of harmful substances in exhaust gases by 1.5‒4 times relative to operation on propane-butane without processing. This paper considers the possibility of using a plasma dynamic stabilization technique and conducting an electric discharge without contact with metal electrodes for the implementation of endothermic reactions whose implementation requires energy from an external source. During test experiments, volt-ampere characteristics of the system with needle electrodes were established, the distance between which was 2‒5 mm at different feed pressures of propane-butane gas mixture (75 % propane and 25 % butane). At the outlet of the plasma-chemical reactor, a hydrogen-containing gas mixture is obtained, which is subsequently supplied to the combustion chamber through the regular gas fuel system of the engine. Next, when such a gas mixture burns in the combustion chamber, hydrogen acts as a catalyst for chemical reactions, which reduces the thickness of the flame extinguishing front, increases the speed and completeness of combustion of the gas mixture. Based on the results of comparative motor studies, it was found that plasma-chemical treatment of propane-butane has almost no influence on the effective efficiency of the engine and specific fuel consumption. It should also be noted that the use of plasma-chemical reactors on board a vehicle allows them to be integrated into regular gas fuel engine systems with minimal changes in their structure, which has almost no effect on the mass-size indicators and maintenance conditions of the gas fuel system

show abstract

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Analysis Of Carbon Hydrogen-containing Gas Mixtures At the I...mentioning

confidence: 99%

Revealing the effect of plasma-chemical treatment of propane-butane fuel on the environmental characteristics of the internal combustion engine

Авраменко

Внукова

Kozlovskyi

et al. 2022

EEJET

View full text Add to dashboard Cite

show abstract

“…At insignificant mass fractions of hydrogen combustion products (α -the ratio of the mass of hydrogen and oxygen combustion products to the total mass of steam entering into the turbine) we obtain an analytical expression for the efficien cy of hydrogen use in the cycle taking the heat capacity of steam C p = const [17] ( ) q is the lower heat of hydrogen combustion per 1 kg of the stoichiometric mixture combustion products. At α → 0, the heat of hydrogen combustion in oxygen will be converted into work with an efficiency closed to the efficiency of the Carno cycle at the former values of temperature T = T 0 and the relative internal efficiency of the turbine h 01 , which is quite natural.…”

mentioning

confidence: 99%