Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110

Volumes:
Volume 46, 2019 Volume 45, 2018 Volume 44, 2017 Volume 43, 2016 Volume 42, 2015 Volume 41, 2014 Volume 40, 2013 Volume 39, 2012 Volume 38, 2011 Volume 37, 2010 Volume 36, 2009 Volume 35, 2008 Volume 34, 2007 Volume 33, 2006 Volume 32, 2005 Volume 31, 2004 Volume 30, 2003 Volume 29, 2002 Volume 28, 2001 Volume 27, 2000 Volume 26, 1999 Volume 25, 1998 Volume 24, 1997 Volume 23, 1996 Volume 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v38.i6.20
pages 489-498

Installation Effects of a Clamp-On Transit Time Ultrasonic Flow Meter

Krishnaswamy Kumar
Central water and Power Research Station, Pune
---
K. U. Farande
Central Water and Power Research Station, Maharashtra, India
G. C. Sahoo
Central Water and Power Research Station, Maharashtra, India

RESUMO

In the present era of development in the country, the measurement of flow rates through large size pipelines is very significant for effective utilization of available resources. The uncertainty in flow measurement assumes greater importance when fluid is supplied on chargeable basis. Fulfillment of stipulated requirement of upstream and downstream straight length is one of the important prerequisite to achieve the claimed uncertainty in flow measurement. The latest flow measuring technique, clamp-on type ultrasonic flow meter, is being used in many applications in view of its merit of non-intrusive technique. Many a time, the site constraints do not permit to provide straight lengths recommended by the BIS. ISO/IEC Standards, leading to error in flow measurement. In such cases International Standards do not indicate the possible extent of deviation of measured flow rate from its true value, when recommended straight lengths are not met. This paper highlights to quantify the probable errors in flow measurements with ultrasonic flow meter for various cases where adequate straight lengths are not available between the different combinations of elbows and flow measuring section of the pipe with various distances, viz. (1... 12)D. The research findings will enable to predict the expected value of true flow rate with fair uncertainty for the value of flow rate measured by flow meter which had to be installed at a non standard location, owing to site constraints. These results were established with the help of high precision test circuit with volumetric flow measurement.


Articles with similar content:

HEAT AND MASS TRANSFER DOWNSTREAM OF SUDDEN, NON-AXISYMMETRIC ENLARGEMENTS IN A DUCT
International Heat Transfer Conference 7, Vol.6, 1982, issue
M. O. Awe, G. P. Hammond, J. Ward
HEAT TRANSFER CHARACTERISTICS OF SOME STANDARD LOUVERED SURFACES FOR RADIATORS
International Heat Transfer Conference 10, Vol.15, 1994, issue
Bengt Sunden, Jerker Svantesson
ASSESSMENT OF POWER SYSTEM STATIC FREQUENCY CHARACTERISTICS’ PARAMETERS
ENERGETIKA, Vol.2, 2005, issue 1
Virginijus Radziukynas
AN ESTIMATION OF THE MEMS GYROSCOPE ERROR BASED ON THE KALMAN FILTER ALGORITHM
Telecommunications and Radio Engineering, Vol.78, 2019, issue 14
W. Wang, S. N. Shulga, W. Li, S. Wang, Yu. Zheng, P. Wang, H. Zhang, G. Ma, G. Ren
A NEW METHOD OF MEASURING TWO-PHASE MASS FLOW RATES IN A VENTURI
Multiphase Science and Technology, Vol.21, 2009, issue 1-2
Cees W. M. van der Geld, He Peixiang, Claudio Alimonti, Julio Cesar Passos