Improving the efficiency of fuel combustion with regard to the uncertainty of measuring oxygen concentration

Authors

DOI:

https://doi.org/10.15587/1729-4061.2016.85408

Keywords:

excess air coefficient, meteorological parameters, measurement uncertainty, Monte-Carlo method

Abstract

This paper presents a new approach to control and mange the process of fuel combustion in the boiler units. Ways to increase the efficiency of combustion of fuel materials are examined. We proposed a method for indirect measurement of the current concentration of oxygen in the air whose magnitude quantity depends on meteorological environmental parameters: temperature, absolute pressure and relative humidity. Experimental research was conducted to compare direct and indirect methods of measuring the volumetric concentration of oxygen in the air. We calculated the uncertainties of measurement of the volumetric concentration of oxygen in the air for the direct and indirect methods.

An estimation of the extended expanded uncertainty of the indirect method of measurement was carried out by the imitation simulation using the Monte-Carlo method. It is demonstrated that relative air humidity exerts the largest influence on the extended expanded uncertainty of measuring the volumetric concentration of oxygen. A comparison of the methods of measuring the volumetric concentration of oxygen revealed that the extended expanded uncertainty of the indirect method is less than that of the direct method. We proposed functional dependence of an increase in accuracy of the measurement of excess air coefficient that is based on the calculation of the current concentration of oxygen in the air, which will make it possible to ensure highly effective fuel combustion in the boiler units at any regimes of its functioning.

Author Biographies

Vitaliy Babak, Institute of Engineering Thermophysics of National academy of sciences of Ukraine Zhelyabov str., 2 a, Kyiv, Ukraine, 03057

Doctor of Technical Sciences, Professor, Corresponding Member of the NAS of Ukraine

Department heat measurement, diagnosis and optimization in power engineering

Valentin Mokiychuk, National Aviation University Kosmonavta Komarova ave., 1, Kyiv, Ukraine, 03058

PhD, Associate Professor

Department of Information Measuring Systems

Artur Zaporozhets, Institute of Engineering Thermophysics of National academy of sciences of Ukraine Zhelyabov str., 2 a, Kyiv, Ukraine, 03057

Junior Researcher

Department heat measurement, diagnosis and optimization in power engineering

Oleksandr Redko, National Aviation University Kosmonavta Komarova ave., 1, Kyiv, Ukraine, 03058

Postgraduate student

Department of Information Measuring Systems

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Published

2016-12-21

How to Cite

Babak, V., Mokiychuk, V., Zaporozhets, A., & Redko, O. (2016). Improving the efficiency of fuel combustion with regard to the uncertainty of measuring oxygen concentration. Eastern-European Journal of Enterprise Technologies, 6(8 (84), 54–59. https://doi.org/10.15587/1729-4061.2016.85408

Issue

Vol. 6 No. 8 (84) (2016): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2016 Vitaliy Babak, Valentin Mokiychuk, Artur Zaporozhets, Oleksandr Redko

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