SCIENTIFIC AND ENGINEERING PRINCIPLES OF EFFICIENT FUEL USE AND ENVIRONMENTALLY FRIENDLY GAS COMBUSTIONIN STOVE PLATES. PART 2. STANDARD BASIS AND METHODOLOGY OF EVALUATION THE POWER EFFICIENCY AND ECOLOGICAL CHARACTERISTICS OF DOMESTIC GAS DEVICES

  • B.S. Soroka The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv https://orcid.org/0000-0001-9174-0992
  • V.V. Horupa The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv
  • R.S. Karabchievskaya The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv
Keywords: atmospheric burners, blow-off of flame, combustion and two-stage burning, gas fuel, laminar combustion mode, flash-back of flame, power and environmental tests, universal computerized firing rig, «yellow tips» formation

Abstract

Gas stoves belong to the number of the most wide — spread domestic devices. Research activity concerning these appliances has been stopped in Ukraine some decades ago despite an increase of the natural gas using in municipal economy.

Operation data, power efficiency characteristics and pollution indicators related to on air state by gas combustion in the living accommodation are regulated by the normative documents: national and international standards, regional technical (engineering) conditions of Ukraine, EU countries, Russia, USA, China and other states.

Practically any gas stove is equipped with an atmospheric ejection burner. The principal characteristics of the gas burners, operation peculiarities peculiarities for the atmospheric burners are systematized and analyzed in the presented paper. The following qualitative and quantitative indicators of the atmospheric burners have been considered in this paper: the fuel types to be used (natural gas, liquefied gas), working gas pressure ahead of stove, nominal heat capacity, limit range of operation adjustment, noise by burner operation.

Gas burning under the atmospheric burners operation makes the two-stage process. The physical background of the stable combustion have been considered along with the specific reasons and generalized criteria of the unstable combustions modes: flash-back, blow-off, appearance of the «yellow tips» in the flame.

The atmospheric burners possess both the power and environmental advantages in comparison with the burners of total preliminary mixing of fuel gas and combustion air. Application of primary air excess lpr < 1.0, provides higher efficiency of the burners and need for lower gas pressure ahead of the domestic stoves while the two-stage combustion makes one of the principle techniques of environmentally benign combustion technologies. It has been shown that energetic experiences in ejection burners are proportional to the cube of the air access coefficient, in case of the atmospheric burners — are raised two the third power: ea ~ l3a,pr.

An original methodology experimental researchers for the atmospheric burners of various design and of different companies — manufacturers has been proposed. The methods of the tests performing fully meet to Ukrainian norms and international standards. The computerized firing rig stand with a diagnostic facility has been created providing both power and environmental research of the atmospheric burners with definition of the boundaries of stable operation and breach the combustion stability. An example of the water heating thermogram within the test vessel has been presented providing an opportunity to evaluate the peculiarities of head transfer process by time and space for the system «atmospheric burner – the vessel to be heated and liquid to be boiled». Bibl. 31, Fig. 7, Tab. 5.

Author Biography

B.S. Soroka, The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv

Doctor of Technical Sciences, Professor

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Published
2020-09-20
How to Cite
Soroka, B., Horupa, V., & Karabchievskaya, R. (2020). SCIENTIFIC AND ENGINEERING PRINCIPLES OF EFFICIENT FUEL USE AND ENVIRONMENTALLY FRIENDLY GAS COMBUSTIONIN STOVE PLATES. PART 2. STANDARD BASIS AND METHODOLOGY OF EVALUATION THE POWER EFFICIENCY AND ECOLOGICAL CHARACTERISTICS OF DOMESTIC GAS DEVICES. Energy Technologies & Resource Saving, (3), 4-20. https://doi.org/10.33070/etars.3.2020.01

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