Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
801 4 |
Ultima descărcare din IBN: 2023-04-29 15:04 |
Căutarea după subiecte similare conform CZU |
620.9 (564) |
Общая энергетика (550) |
SM ISO690:2012 ПРОДАН, Николай, ЧЕРНЫШОВ, Павел, ИЛЬИНА, Екатерина, ЛАВРОВ, Павел. Применение подкритического стримерного СВЧ разряда для многоточечного поджигания потока топливной смеси в камере сгорания микротурбины. In: Problemele Energeticii Regionale, 2019, nr. 3(44), pp. 91-100. ISSN 1857-0070. DOI: https://doi.org/10.5281/zenodo.3562189 |
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Problemele Energeticii Regionale | |||
Numărul 3(44) / 2019 / ISSN 1857-0070 | |||
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DOI:https://doi.org/10.5281/zenodo.3562189 | |||
CZU: 620.9 | |||
Pag. 91-100 | |||
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Rezumat | |||
The work focuses on improving fuel economy and efficiency of combustion processes in gas turbine power plants. The use of multipoint plasma ignition of the fuel mixture in the cylindrical com-bustion chamber is considered. The aim of the study is to increase the efficiency of ignition of the fuel mixture. The goal is achieved both through theoretical studies carried out using numerical methods, and experimentally, in an experimental device. The propagation time of the flame front is compared at 1, 4, 8 ignition centers created by automobile candles and subcritical microwave discharges. In the calcula-tion of combustion, a quasi-global model of chemical kinetics is used, which includes 12 components. To calculate microwave discharges, we use the system of equations of gas dynamics and Maxwell equa-tions for a thermodynamically nonequilibrium plasma in a three-dimensional formulation. A model of absorption of microwave radiation by a streamer discharge is used, as a result of which it is heated. The most significant scientific result is that a multi-point streamer microwave discharge can be ignited inside a metal combustion chamber and its effectiveness as an arsonist is much higher than the efficiency of spark candles. The significance for practice lies in the fact that the rate of increase in pressure with multipoint microwave ignition is one third higher than with multi-point spark ignition and three times higher than with standard ignition, but the input energy is almost 30 times less. This allows you to significantly increase the specific indicators of both internal combustion engines and constant volume engines. |
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Cuvinte-cheie microturbine, plasma-assisted ignition and combustion, low-emission combustion chamber, microwave discharge, streamer discharge, nonequilibrium plasma, microturbină, combustie plasmatică, cameră de ardere cu emisii scăzute, descărcare de microunde, descărcare în flux, plasmă fără echilibru, микротурбина, плазменное горение, малоэмиссионная камера сгорания, СВЧ-разряд, стримерный разряд, неравновесная плазма |
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