Abstract
The paper focuses on the problem of measuring the volume of granular materials in storage tanks where, due to uneven surfaces of these materials, the error in measurement by conventional methods reaches 15–20 percent. To increase the accuracy of volume measurement, a technique for modeling surfaces formed by granular materials in tanks is proposed.
Highlights
Enterprises of the construction industry, chemical plants, agricultural companies and enterprises of other industries use a variety of tanks to store raw materials, finished products, various granular substances and materials, and should operate these tanks as efficiently as possible [1,2,3,4].If a material is granular, viscous or has a consistency other than liquid, it forms an uneven surface of convex or concave shapes
This results in downtime due to miscalculated dynamics of consumption or production of raw materials; low quality of mixtures due to errors in calculating ratios of ingredients in different formulations; additional costs arising from related accounting errors; miscalculated production volumes and consumption of raw materials, and other problems
According to the proposed technique, volume measurement for granular materials in a storage tank is divided into the following stages: 1) determining a discrete set of values of surface levels; 2) approximating the surface to determine intermediate unknown values of coordinates and its nonlinear function; 3) calculating the volume of material under the formed surface
Summary
Enterprises of the construction industry, chemical plants, agricultural companies and enterprises of other industries use a variety of tanks (tank batteries) to store raw materials, finished products, various granular substances and materials, and should operate these tanks as efficiently as possible [1,2,3,4].If a material is granular, viscous or has a consistency other than liquid, it forms an uneven surface of convex or concave shapes (depending on whether materials are supplied to or pumped from a tank). The most common method of volume measurement in tanks is to measure the surface level at only one point and average the data, but this method should generally be used for liquid materials [5, 6]. Such a volume measurement method leads to low accuracy of data for tank batteries and, has a direct influence on economic losses of enterprises. This results in downtime due to miscalculated dynamics of consumption or production of raw materials; low quality of mixtures due to errors in calculating ratios of ingredients in different formulations; additional costs arising from related accounting errors; miscalculated production volumes and consumption of raw materials, and other problems
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