The analysis of flow stability in a vortex furance model

Ануфриев, И. С.; Glushkov, Dmitrii O.; Papulov, Anatoly P.; Shadrin, E. Yu.

doi:10.1051/matecconf/20179201059

MATEC Web Conf.

2016

DOI: 10.1051/matecconf/20179201059

|View full text |Cite

The analysis of flow stability in a vortex furance model

И. С. Ануфриев

Dmitrii O. Glushkov

Anatoly P. Papulov

et al.

Abstract: Results of experimental study of the pulsation characteristics of a flow in isothermal model of vortex furnace with vertically oriented nozzles of secondary blast are obtained. With use of laser Doppler measuring system and pressure pulsations analyzer the data about the pressure and velocity pulsations has been received. Spectra of pressure and velocity pulsations at various regime parameters are presented. Absence of non-stationary structures, such as precessing vortex core of a flow, is shown.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2017

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1-b. The main elements of this stand are [2]: compressed air supply system with control and regulating devices; four-vortex furnace model; system for seeding a stream by tracer-particles; and measuring system. The model is made of 10 mm thick plexiglass at a scale of 1:25 (internal dimensions 290 x 880 x 730 mm).…”

mentioning

confidence: 99%

Flow structure diagnostics in a four-vortex furnace model using PIV-method

Shadrin

Papulov

2017

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. In this paper the flow structure in a four-vortex furnace of a pulverized coal boiler has been studied. The results of an experimental study of inner aerodynamics carried out on a laboratory isothermal model of a combustion device are presented. Using the particle image velocimetry method, flow velocity distributions have been obtained in a number of sections. A spatial flow structure consisting of four stable conjugate vortices with vertical flow rotation axes has been visualized.The perspectives of coal energy development necessitate the creation of new ways of efficient and environmentally safe use of solid fuels. The limited reserves of high-quality solid fuels lead to the need to involve low-grade ("non-project") coals in the fuel and energy balance. The solution of this problem requires a significant increase in the characteristics of steam boilers of TPPs and the development of new types of combustion devices that satisfy modern standards of energy efficiency and environmental safety. One of the promising technologies in this field is fuel combustion in the vortex flow. The flow swirling provides for a more complete fuel burnup due to better mixing and longer residence time of fuel particles in the combustion chamber.In this paper, the flow structure in a perspective combustion device [1] with a fourvortex solid fuel combustion scheme is experimentally studied. Four vortical structures with vertical axes and opposite directions of rotation are formed there. The furnace is designed for the use at thermal power plants for burning brown slagging coal. The furnace is equipped with a shielded rectangular combustion chamber. Two diagonally directed blocks of multilevel burners are mounted on the sidewalls; they are close to the axis of symmetry of the sidewalls so that the ratio of distance between the burners to the burner height is 0.8-1.2. In the center of the front and rear walls, there are nozzles of secondary and tertiary inflow, made in the form of vertical near-wall slots, whose height is equal to the height of the burner unit and oriented relative to each other in opposite directions along the walls, where they are located. Primary fuel combustion occurs in the direct-flow part of the side burner flame. Due to optimal positioning of the side burners, efficient interaction of burner jets mixing and ignition is achieved via intensive flue gas suction in the inter-burner space. The colliding straight-flow parts of the flame, directed from the sidewalls towards each other, turbulize the flow, and due to the nozzles of secondary and tertiary inflow, form four vortex flows with vertical rotation axes ( Fig. 1-a).

show abstract

mentioning

confidence: 99%

Flow structure diagnostics in a four-vortex furnace model using PIV-method

Shadrin

Papulov

2017

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

The analysis of flow stability in a vortex furance model

Cited by 1 publication

References 7 publications

Flow structure diagnostics in a four-vortex furnace model using PIV-method

Flow structure diagnostics in a four-vortex furnace model using PIV-method

Contact Info

Product

Resources

About