Investigation of the interaction of turbulent jets in furnaces with direct-flow burners for high-power boilers

Investigation of the direct-flow jets vortex motion in the M-shaped boiler invert furnace

Journal of Physics Conference Series ◽

10.1088/1742-6596/2088/1/012036 ◽

2021 ◽

Vol 2088 (1) ◽

pp. 012036

Author(s):

V B Prokhorov ◽

V S Kirichkov ◽

S L Chernov ◽

A A Kaverin ◽

N E Fomenko

Keyword(s):

High Efficiency ◽

Coal Dust ◽

Dynamic Pressure ◽

Vortex Motion ◽

Turbulent Jets ◽

Flame Length ◽

Dust Particles ◽

Direct Flow ◽

Horizontal Section ◽

Vortex Furnace

Abstract For advanced ultra-supercritical parameters (A-USC) of steam, the design of an M-shaped boiler is proposed, designed to operate in a 500 MW unit on a lean coal (grade TR). The boiler profile is selected from the condition of minimizing the length of the main steamlines made of expensive nickel-alloy steel. With regard to this boiler, a scheme has been developed for pulverized coal combustion in an invert furnace using direct-flow burners and nozzles. Research has been carried out on the physical model of the furnace in the implementation of this combustion scheme: a qualitative study of the trajectories of the burner jets, jets of secondary and tertiary air obtained by their hot spark visualization; quantitative determination of the main characteristics of burner jets and their weight gain. The studies have shown the high efficiency of the recommended scheme of the furnace-burner device: a staged supply of the oxidizer along the flame length and along the furnace height is organized; the dynamic pressure of jets on the furnace wall tubes is excluded; vortex furnace aerodynamics should provide a high degree of burnout of coal dust particles; air jets evenly fill the horizontal section of the furnace; the ejection capacity of turbulent jets is much higher than for a flat submerged jet.

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COMPRESSION AND RADIATION OF HIGH-POWER SHORT RF PULSES. I. ENERGY ACCUMULATION IN DIRECT-FLOW WAVEGUIDE COMPRESSORS

Progress In Electromagnetics Research ◽

10.2528/pier11022003 ◽

2011 ◽

Vol 116 ◽

pp. 239-270 ◽

Cited By ~ 9

Author(s):

Kostyantyn Sirenko ◽

Vadim Pazynin ◽

Yuriy K. Sirenko ◽

Hakan Bağci

Keyword(s):

High Power ◽

Rf Pulses ◽

Direct Flow ◽

Energy Accumulation

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Dynamic Modeling and Wear-Based Remaining Useful Life Prediction of High Power Clutch Systems

Tribology Transactions ◽

10.1080/05698190590927451 ◽

2005 ◽

Vol 48 (2) ◽

pp. 208-217 ◽

Cited By ~ 32

Author(s):

Matthew Watson ◽

Carl Byington ◽

Douglas Edwards ◽

Sanket Amin

Keyword(s):

Dynamic Modeling ◽

High Power ◽

Life Prediction ◽

Remaining Useful Life ◽

Useful Life

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Less Power, Greater Conflict

Social Psychology ◽

10.1027/1864-9335/a000327 ◽

2018 ◽

Vol 49 (1) ◽

pp. 47-62 ◽

Cited By ~ 1

Author(s):

Petra C. Schmid

Keyword(s):

Low Power ◽

High Power ◽

Goal Pursuit ◽

Goal Conflict ◽

Personal Goals ◽

Multiple Goals ◽

Objective Performance ◽

The Future ◽

The Way

Abstract. Power facilitates goal pursuit, but how does power affect the way people respond to conflict between their multiple goals? Our results showed that higher trait power was associated with reduced experience of conflict in scenarios describing multiple goals (Study 1) and between personal goals (Study 2). Moreover, manipulated low power increased individuals’ experience of goal conflict relative to high power and a control condition (Studies 3 and 4), with the consequence that they planned to invest less into the pursuit of their goals in the future. With its focus on multiple goals and individuals’ experiences during goal pursuit rather than objective performance, the present research uses new angles to examine power effects on goal pursuit.

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