文章基本信息

标题：Heat transfer based flowmeter for high temperature flow rate measurements: Design, implementation and testing
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作者：Nwadiubu Anthony ; Isiwu Prisca ; Andrea Lippi 等
期刊名称：Case Studies in Thermal Engineering
印刷版ISSN：2214-157X
电子版ISSN：2214-157X
出版年度：2019
卷号：15
页码：1-9
DOI：10.1016/j.csite.2019.100529
出版社：Elsevier B.V.
摘要：The present work deals with the design, implementation and testing of a new heat transfer-based flowmeter. The suggested flowmeter allows the measurement of flow rates in applications involving hot fluid flows, mainly gas flows. The suggested flowmeter operates by circulating a cold fluid (water) of a known flow rate and temperature in a concentric tube heat exchanger in an opposite direction to the main flow of hot fluid of unknown flow rate. The flowmeter enables, from temperature measurements and the energy balance of the exchanger, the determination of the unknown flow rate. It was shown that the suggested flowmeter can reach accuracies greater than 90% depending on different parameters. The flowmeter's precision was shown to be increased with the increase of both cold and hot flow rates. The suggested flowmeter can be enhanced when the fluid temperatures are within the optimal range of operation which are achieved and specified by the design parameters.
关键词：New flowmeter ; High temperature ; Flow rate ; Design ; Implementation ; Testing