Особенности формирования поля температур в стабилизаторных горелочных устройствах при микродиффузионном сжигании газа
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Дата
2015
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Национальный технический университет "Харьковский политехнический институт"
Анотація
Представлены результаты экспериментальных исследований формирования профиля температуры продуктов сгорания за стабилизаторами при микрофакельном сжигании газа со струйной подачей топлива в зону рециркуляции. Рассмотрены факторы, определяющие распределение температуры вдоль стабилизатора, а также длину камеры, необходимую для выравнивания температуры по сечению камеры сгорания.
The efficiency of the thermodynamic cycle of the thermoenergetic plant is defined to a great extent by burner characteristics. This scientific paper gives consideration to the formation processes of the temperature field of combustion products in the combustion chamber at microdiffusion popping of gas behind flat collectors- stabilizers with the injection of fuel into the recirculation zone that is distributed along the stabilizer length. It was shown that the profile of the gas temperature along the stabilizer height required by burner operation conditions can be provided by an appropriate change of local fuel consumption. It was noted that due to a high gradient of velocities and temperatures in the trace cross-section behind the stabilizer the mixing process of combustion products and the air in the inter-stabilizer space is characterized by a high intensity. For the studied options of burners at the stabilizer width of Bst = 30 mm and 45 mm and jam coefficients Kf = 0,6 to 0,8 the length of the chamber on which the chamber section rectification of temperature field occurs is equal to 10–15 calibers of the stabilizer and depends on the lattice density and excess air factor.
The efficiency of the thermodynamic cycle of the thermoenergetic plant is defined to a great extent by burner characteristics. This scientific paper gives consideration to the formation processes of the temperature field of combustion products in the combustion chamber at microdiffusion popping of gas behind flat collectors- stabilizers with the injection of fuel into the recirculation zone that is distributed along the stabilizer length. It was shown that the profile of the gas temperature along the stabilizer height required by burner operation conditions can be provided by an appropriate change of local fuel consumption. It was noted that due to a high gradient of velocities and temperatures in the trace cross-section behind the stabilizer the mixing process of combustion products and the air in the inter-stabilizer space is characterized by a high intensity. For the studied options of burners at the stabilizer width of Bst = 30 mm and 45 mm and jam coefficients Kf = 0,6 to 0,8 the length of the chamber on which the chamber section rectification of temperature field occurs is equal to 10–15 calibers of the stabilizer and depends on the lattice density and excess air factor.
Опис
Ключові слова
природный газ, камера сгорания, стабилизатор, микродиффузионное горение, продукты сгорания, combustion chamber, stabilizer, microdiffusion combustion, temperature field, combustion products
Бібліографічний опис
Особенности формирования поля температур в стабилизаторных горелочных устройствах при микродиффузионном сжигании газа / О. Ю. Черноусенко [и др.] // Вестник Нац. техн. ун-та "ХПИ" : сб. науч. тр. Темат. вып. : Энергетические и теплотехнические процессы и оборудование. – Харьков : НТУ "ХПИ". – 2015. – № 17 (1126). – С. 13-20.