![]() In addition, the standard metal tank is too small compared to the vertical tank, and it takes a lot of time to pour a fixed amount of water many times. To place the standard metal tank higher than the metal tank, this is difficult to achieve. At present, 5m 3 is already a very large standard metal tank, but the volume range of vertical tanks includes 20m 3~700m 3, even more than 700m 3, and the height can exceeds 30 meters. VM is with high precision and simple to operate, but requires liquid (usually is water) supply while measurement and the contaminated liquid needs further processing while measurement finish. This method can be adapted to irregularly shaped tanks, and the capacity can be obtained directly through volume comparison without conversion calculation. During measurement, a fixed volume of water is poured into the storage tank through a standard metal tank (apparatus with a higher level of accuracy), and then the capacity table is calculated by interpolation. VM compares the capacity difference between a tank with higher precision and the vertical tank being measured. Due to the need for a lot of manual operations, the measurement efficiency of this method is low, and the measurement results are easily affected by operator errors.Īnother commonly used method to measure the capacity of a vertical tank is Volumetric Method (VM). This method is with a low level of automation, requires measuring a range of geometric parameters, such as the height, circumference, and diameter of different rings (vertical tanks are actually composed of many rings), which is of a heavy work load and time-consuming. GMM uses steel tape, theodolite or other measuring device to measure tank’s geometry, and use dedicated computer software to process the measured data to obtain the tank capacity. One of the commonly methods used to measure the capacity of a vertical tank is Geometric Measurement Method (GMM). ![]() Accurate measurement of the vertical tank capacity is directly related to the fairness of liquid substance transactions. Vertical tank is widely used in the storage, transportation and measurement of liquid substances such as petroleum and chemical materials. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. 2020A1515010947), the Science and Technology Program of Guangzhou, (No.202002030439), the Technology Project of Guangzhou Administration for Market Regulation(No.2020kj33) and the National Natural Science Foundation of China(No.51805104). This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper and its Supporting Information files.įunding: This work was supported by the Guangdong Basic and Applied Basic Research Foundation, (No. Received: FebruAccepted: ApPublished: April 16, 2021Ĭopyright: © 2021 Chen et al. PLoS ONE 16(4):Įditor: Talib Al-Ameri, University of Glasgow, UNITED KINGDOM ![]() The results show that the absolute error of the measurement results of the proposed method does not exceed ☐.0003, and the absolute error of capacity per unit volume has a linear relationship with the height of the vertical tank, and has little effect with the radial size of the vertical tank.Ĭitation: Chen G, Wan Y, Lin H, Hu H, Liu G, Peng Y (2021) Vertical tank capacity measurement based on Monte Carlo method. The criterion for whether a sample point is located in the tank, which is the core issue, is established with the coordinates of sensor points and the distance between different sensor points along the surface of the tank. The method arranges a plurality of sensor points on the inner surface of the tank, and then performs Monte Carlo tests by generating a large number of random sample points, and finally calculates the capacity by counting the sample points that meet the criterion. In order to measure the capacity of vertical tanks more conveniently, this paper proposes a vertical tank capacity measurement method based on Monte Carlo Method. ![]() Vertical tanks are commonly used appliances for liquids, and its capacity is very important for quantitative liquid ratio and liquid trade.
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