Boiler startup under conditions of convective heating of the highly reactive coal dust

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S0040601516120107

Ключевые слова: boiler, boiler startup without heavy oil, brown coal, heated airflow, Air, Boilers, Coal, Crude oil, Energy utilization, Heavy oil production, High speed cameras, Ignition, Lignite, Particle size, Pulverized fuel, Thermocouples, Video cameras, Convective heating, Experimental research, Fuel preparation, heated airflow, High speed video cameras, Ignition delay time, Low energy consumption, Pulverized coals, Coal dust

Аннотация: Experimental research of conditions and characteristics of ignition of the pulverized coal (with a particle size of approximately 80 ?m) of different-type brown coals (1B, 2B, and 3B) during convective heating by a heated airflow (at a temperature of 425–600°С and velocity of 1–5 m/s) is carried out. The use of low-inertia thermocouples, a high-speed video camera, and dedicated software has made it possible to determine the minimum oxidizer parameters needed for coal dust ignition, and the approximation dependences of a main characteristic of the process under study?ignition delay time?on the air temperature. Results of experimental studies provide a basis for developing an optimal scheme of the boiler startup without heavy oil, which differs from the known schemes by the relatively low energy consumption for fuel-burning initiation. By example of the BKZ 75-39FB boiler, the economic usefulness of applying the boiler startup without heavy oil is shown. This scheme can be implemented using the proposed ignition burner that functions as a part of the direct system of pulverized-fuel preparation. © 2016, Pleiades Publishing, Inc.

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Издание

Журнал: Thermal Engineering

Выпуск журнала: Vol. 63, Is. 12

Номера страниц: 870-875

ISSN журнала: 00406015

Авторы

  • Zhuikov A.V. (Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, Russian Federation)
  • Kulagin V.A. (Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, Russian Federation)
  • Baranova M.P. (Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, Russian Federation)
  • Glushkov D.O. (Tomsk Polytechnic University, pr. Lenina 30, Tomsk, Russian Federation)

Вхождение в базы данных

  • Scopus (цитирований 1)

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