Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
411 0 |
Căutarea după subiecte similare conform CZU |
665.612.2 (3) |
Uleiuri. Grăsimi. Ceruri. Adezivi. Gume. Rășine (111) |
SM ISO690:2012 БАЧЕВ, Николай, ШИЛОВА, Алена, МАТЮНИН, Олег, БЕТИНСКАЯ, Оксана. Исследование характеристик низкотемпературного бедного горения в энергоустановках с внешним подогревом компонентов. In: Problemele Energeticii Regionale, 2021, nr. 2(50), pp. 127-140. ISSN 1857-0070. DOI: https://doi.org/10.52254/1857-0070.2021.2-50.11 |
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Problemele Energeticii Regionale | ||||||
Numărul 2(50) / 2021 / ISSN 1857-0070 | ||||||
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DOI:https://doi.org/10.52254/1857-0070.2021.2-50.11 | ||||||
CZU: 665.612.2 | ||||||
Pag. 127-140 | ||||||
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An integral part of any open-type gas turbine plant is a low-emission combustion chamber, which is usually two-zone and cooled. One of the ways to reduce emission of harmful substances is organizing low-emission low-temperature lean combustion with external heating of components. This paper investigates the effect of external heating of air and fuel gas on expansion of the lower combus-tion limit and stable flame position in a single-zone uncooled combustion chamber of a microgas tur-bine power plant. Stable position of the flame front in combustion chambers of this type mainly de-pends on the ratio between the average flow rate of the combustible-air mixture and the rate of turbu-lent combustion. This ratio depends on thermal, gas-dynamic, thermochemical and geometric factors. The purpose of this work is to substantiate the possibility of using the relative flow rate as a general-ized characteristic. This goal was achieved in processing a large amount of published experimental data and numerical modeling of low-temperature combustion of lean mixtures. The most significant research result is determination of the range of relative flow rate (gk = 0.3…3.5·10-4 kg⁄s∙N), at which it is possible to ensure stable flame position in a single-zone combustion chamber. Significance of the obtained results lies in the fact that using the relative flow rate makes it possible to quickly determine and analyze the geometric and gas-dynamic parameters and characteristics of turbulent combustion in combustion chambers of micro-gas turbine power plants. |
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Cuvinte-cheie low-temperature lean combustion, external heating of components, stable position of turbulent flame, relative flow rate, combustie slabă la temperatură scăzută, încălzirea externă a componentelor, poziția stabilă a flăcării turbulente, debitul relativ, низкотемпературное бедное горение, внешний подогрев компонентов, устойчивое положение турбулентного пламени, относительная расходонапряженность |
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