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This article is devoted to the analysis of the feasibility of using the method of the main components for the assessment and control of the level of achieved energy efficiency at the enterprise. For quantify the level of achieved energy efficiency are used energy efficiency indicators and a baseline of energy consumption is established to compare energy efficiency values over a long period of time and quantify changes in the level of achieved energy efficiency. The following methods were used to solve this problem: the method of regression analysis and the principal components method. As a research object the carousel dryer of the malt shop of the enterprise was taken. Accuracy of forecasting electricity consumption the object of research requires analysis of internal production factors. Factors whose parameters can be determined during the period of the carousel dryer are selected. According to the expert estimation method, experts and technical staff of the enterprise were interviewed, as a result of which factors outlining factors that could affect the consumption of electricity during the work of the carousel dryer were identified. After analyzing the application of the above-mentioned methods, it is proved that the mathematical model of the baseline energy consumption for a round-bottomed dryer of the malt shop is more accurate in the case of its construction by the principal components method than by the regression analysis. The accuracy of the received mathematical models of baseline power consumption levels is estimated on the basis of the calculation of the average relative error, the mean square error and the variation coefficient. In addition, it is more appropriate to use the principal components method to determine the most significant factors affecting the consumption of electric power of the carousel dryer when setting its baseline energy efficiency.

vìsnik nacìonalʹnogo tehnìčnogo unìversitetu "hpì". novì rìšennâ v sučasnih tehnologìâh/vestnik nacionalʹnogo tehničeskogo universiteta "hpi". novye rešeniâ v sovremennyh tehnologiâh

Application of principal components method for evaluation of energy efficiency level