Control of modes of operation of a heat-engineering installation
https://doi.org/10.21266/2079-4304.2022.241.218-228
Abstract
The rational aerodynamic situation in the furnace of a pulverized coal boiler was determined experimentally and by calculation at different orientations in the space of the chamber of hot air flows from the rear blast supply unit. Numerical modeling of the processes of hydrodynamics and heat and mass transfer in the furnace space of a heat technological device was performed using the modern PHOENICS computer complex. The possibility of controlling the non-uniformity of energy carrier flows in the working chamber of a particular boiler unit, and hence the effective modes of its operation, is shown. Both experimental and calculated data obtained made it possible to determine not only the optimal spatial operating parameters of the rear blast supply unit and flow characteristics for two types of burners, but also to obtain a set of rational parameters of the rear blast unit when changing the operating mode of the boiler unit, for example, when new reductions in its load. The use of research results made it possible to practically eliminate emergency situations due to inefficient operation of the rear air curtains.
About the Authors
Al. A. Fedyaev
St. Peterburg State Forest University
Russian Federation
Russian Federation
FEDYAEV Alexander A. – DSc
194021. Institutsky per. 5. Let. U. St. Petersburg
A. V. Sergeevichev
St. Petersburg State Forest Technical University
Russian Federation
Russian Federation
SERGEEVICHEV Alexander V. – Professor, Doctor of Engineering, Head of the Department of Applied Mechanics and Engineering Graphics
194021. Institutsky per. 5. Let. U. St. Petersburg
Researcher ID: ABC-2274-2020
Ar. A. Fedyaev
St. Peterburg State Forest University
Russian Federation
Russian Federation
FEDYAEV Artur A. – PhD
194021. Institutsky per. 5. Let. U. St. Petersburg
N. A. Vokhmianin
St. Peterburg State Forest University
Russian Federation
Russian Federation
VOKHMIANIN Nikolay A. – PhD
194021. Institutsky per. 5. Let. U. St. Petersburg
N. N. Verner
St. Peterburg State Forest University
Russian Federation
Russian Federation
VERNER Nadezhda N. – PhD
194021. Institutsky per. 5. Let. U. St. Petersburg
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Review
For citations:
Fedyaev A.A., Sergeevichev A.V., Fedyaev A.A., Vokhmianin N.A., Verner N.N. Control of modes of operation of a heat-engineering installation. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2022;(241):218-228. (In Russ.) https://doi.org/10.21266/2079-4304.2022.241.218-228
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