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The importance of accurate water metering in resource management

机译：准确水测量在资源管理中的重要性

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摘要

Water has always been the source of growth and dispute between providers and consumers. Nowadays, water conservation and environmentally friendly technologies are becoming more important, especially in areas where access to water is expensive or restricted. Since water has become a limiting resource for economic development, accurate measurement of consumption is important for both trade and industry. Unfortunately, over time and use, the internal components of a measuring flow meter wear, and the level of metering accuracy drops. This progressive drop in metering accuracy causes "meter drift". This paper studies the effect of drift/errors in flow meters used in seawater pumping stations, which are supplying seawater for several refineries and petrochemical plants in Kuwait. The seawater pumped to these consumers is utilised for cooling and process purposes. In such high volume consumer system, a small drift may result in lost revenue due to an under-accounting of the quantity of used water. In such systems, in order to endlessly repair, rebuild or recalibrate all the flow meters a labour intensive and expensive process is required that causes significant down-time too. In the presented research work, a novel mathematical method is presented which provides early detection of flowmeter drift irrespective of type (ultrasonic, magnetic, etc.). This method is designed based on the mathematical models of the system and its process relations. The proposed method works with minimal input data and provides an inexpensive solution to existing measuring systems.
机译：水一直是提供者和消费者之间的增长和争议的源泉。如今，水资源保护和环保技术变得越来越重要，特别是在进入水的地区昂贵或限制。由于水已成为经济发展的限制资源，因此精确的消费测量对于贸易和行业来说都很重要。不幸的是，随着时间的推移和使用，测量流量计磨损的内部部件，以及计量精度下降的水平。这种渐进计量精度下降导致“仪表漂移”。本文研究了海水泵站中使用的流量计中漂移/误差的影响，供科威特提供海水和科威特的石化植物。泵向这些消费者的海水用于冷却和过程目的。在如此高批量消费系统中，由于占用水量的令人核算，可能会导致收入损失。在这样的系统中，为了无限制地修复，重建或重新校准所有流量计，需要劳动密集型和昂贵的过程，这也是显着的停机时间。在本研究工作中，提出了一种新的数学方法，其提供了流量计漂移的早期检测，而无论类型（超声波，磁等）。这种方法是基于系统的数学模型及其过程关系而设计的。所提出的方法适用于最小输入数据，并为现有测量系统提供廉价的解决方案。

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