Research into the impact of structural features of combustion chamber in energy-technological units on their operational efficiency

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.143316

Keywords:

combustion chamber, aerodynamics, flat flame burner, tunnel furnace, temperature of combustion products

Abstract

The experimental studies of the influence of the degree of masonry development (geometry) and aerodynamics of the combustion chambers (circuits of combustion products removal) on the energy-technological indicators of the processes in the system gas-solid (in combustion chambers) were carried out.

The experimental research into the influence of geometry and aerodynamics of the combustion chamber on the energy-technological indicators in the system gas – solid body was conducted at the industrial large-scale fire bench.

It was shown that a decrease in the height of the working space of the combustion chamber, equipped with flat flame burners, affects the use of fuel due to heat exchange intensification, including direct convection. The dependence is caused by a decrease in heat losses with flue gases and due to a decrease in losses through the masonry.

It was established that at the height of the working space of 800÷1,000 mm of the combustion furnace, fuel consumption decreases by 20÷30 %.

The design of the combustion space of the furnace of continuous operation mode was developed. The distinctive feature of the furnace of the developed design is the elimination of discreteness and implementation of the stable continuous operation mode of the heating unit. The longitudinal channels were made on the lateral surfaces of the cars and the furnace along the entire length of the latter, which makes it possible to implement the continuous removal of combustion products from the combustion space through canalized hearth of the cars into the longitudinal lateral channels, made in the walls of the furnace. Additional aerodynamic compaction of the working space of the furnace is ensured at any speed of the motion of the cars.

It was found that energy-technological efficiency at the arch heating of the combustion units with flat flame burners and combustion products removal under the workpiece (lower smoke removal) is on average by 1.3 times higher than at use of the circuit of products removal above the workpiece (lateral smoke removal), which is used in currently operating furnaces.

The design was developed and the tunnel furnace was put into operation. It was for chemical and thermal treatment of metallic and non-metallic materials and products during their heating by the assigned schedule.

Author Biographies

Valeriy Nikolsky, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

Doctor of Technical Sciences, Professor

Department of Energetic

Olga Oliynyk, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

PhD, Associate Professor

Department of Computer-integrated Technologies and Metrology

Viktor Ved, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

Senior Lecturer

Department of equipment of chemical plants

Andrii Pugach, Dnipro State Agrarian and Economic University Sergiy Yefremov str., 25, Dnipro, Ukraine, 49600

Doctor of Science in Public Administration, PhD, Associate Professor

Department of Agricultural Machinery

Ramzan Turluev, Grozny State Oil Technical University named after Academician M. D. Millionshchikov Avtorhanova str., 14/53, Grozny, Chechen Republic, Russian Federation, 364051

PhD, Associate professor, Head of Department

Department of Heat Engineering and Hydraulics

Oleksandr Alieksandrov, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

PhD, Senior LecturerDepartment of Applied Mechanics

Viacheslav Kosarev, Alfred Nobel University Sicheslavska Naberezhna str., 18, Dnipro, Ukraine, 49000

PhD, Associate Professor

Department of Information Technology

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Published

2018-10-01

How to Cite

Nikolsky, V., Oliynyk, O., Ved, V., Pugach, A., Turluev, R., Alieksandrov, O., & Kosarev, V. (2018). Research into the impact of structural features of combustion chamber in energy-technological units on their operational efficiency. Eastern-European Journal of Enterprise Technologies, 5(8 (95), 58–64. https://doi.org/10.15587/1729-4061.2018.143316

Issue

Vol. 5 No. 8 (95) (2018): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2018 Olga Oliynyk, Valeriy Nikolsky, Oleksandr Alieksandrov, T. R., Viacheslav Kosarev

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