PECULIARITIES OF TESTING HOUSEHOLD FURNACES BY EUROPEAN STANDARD 15250 WITH THE HELP OF GAS ANALYZER AND ANEMOMETER

Subject: The existing testing methods and instruments (gas analyzer) used do not allow us to obtain the real characteristics of household furnaces to the full extent. This is due to the fact that the combustion of firewood in the furnace is a very unstable process and varies over time over a large range. Such an important parameter as the concentration of carbon monoxide in flue gases proves to be significantly underestimated, and the efficiency of the furnace is too high, which does not allow us to reliably estimate the characteristics of the furnaces and compare them. It requires a more detailed analysis of the firewood combustion process itself and the development of recommendations to improve the reliability of experimental results. Research objectives: investigation of available methods of testing household furnaces and development of recommendations for increasing the reliability of experimental results. Materials and methods: A detailed analysis of the combustion of firewood in the PDKSh-2.0 furnace was carried out. Results: The results of the study were used to develop recommendations for selecting a zone for measuring the characteristics of household furnaces and using a gas analyzer in conjunction with an anemometer to increase the accuracy of measurements and test quality. The proposed recommendations make it possible to obtain more real characteristics of firewood combustion in household furnace and significantly reduce the error in measuring concentration of carbon monoxide and also when measuring the efficiency of the furnaces. Conclusions: The results of the work can be recommended for use in the testing of household furnaces.