Errors in heart measurements and main requirements for metrological support of heat-energy metering devices

Abstract

536.6This article examines metrological aspects of the problem of improving the accuracy of measurement of heat energy and reducing the imbalances between suppliers and consumers. Metrological requirements are formulated for different blocks of a measurement system along with standards for their substantiation. The metrological characteristics of the components that meter heat energy are calculated by computer programs on the basis of the actual systematic errors of the corresponding blocks.Instruments that are designed for the commercial metering of heat energy and heat-transfer agents [ 1 ] are measuring-computing systems [1] that record cumulative sums of hourly, daily, and monthly consumptions of such agents and heat energy.Customers are billed at the end of a monthly accounting period for the heat and heat-transfer agents they use. Thus, the output variable of a commercial meter-in contrast to industrial meters -consists of just 12 monthly readings over the course of a year. The results of measurements made by summing over hours or days are used only as a check to make sure that the heating system is functioning properly in accordance with the contractual obligations of the utility.