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Vol. 152, No. 5, May 2013, pp. 152-157




Mass Flow Measurement of Fluids by a Helically Coiled Tube
1,2 Tian ZHOU, 1,2,* Zhiqiang SUN, 1,2 Zhenying DONG, 1,2 Saiwei LI, 1,2 Jiemin ZHOU

1 School of Energy Science and Engineering, Central South University, Changsha 410083, China

2 Hunan Key Laboratory of Energy Conservation in Process Industry, Central South University, Changsha 410083, China

* Tel.: +86-731-88876209, fax: +86-731-88879863

* E-mail: zqsun@csu.edu.cn


Received: 2013   /Accepted: 15 May 2013   /Published: 27 May 2013

Digital Sensors and Sensor Sysstems


Abstract: Reliable and accurate measurement of mass flow rate of fluids has become an essential need in numerous scientific researches and industrial processes. A novel approach to the mass flow measurement of fluids is proposed in this paper by using the pressure drop across a helically coiled tube as input. Experiments with water were conducted at 13 groups of inclination angles when the tube diameter, coil diameter, uncoiled length and pitch of the helically coiled tubes were fixed. Results show that the method proposed is valid for the mass flow measurement of fluids. The relative errors of the mass flow rates measured were basically within 6 %. The influence of the inclination angles on the mass flow rates was negligible, which can facilitate the setup of measurement system. This approach provides a simple and cost-effective solution to the measurement of mass flow rate of fluids for engineering applications.


Keywords: Mass flow measurement, Helically coiled tube, Measurement model, Pressure drop, Inclination angle


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