bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2009/2010

Editorial Calendar 2009

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2008




Vol. 102, Issue 3, March 2009, pp.105-114





The Effect on Pressure Drop across Control Valve for Two Phase Flow (Air-Water)


Arivazhagan M., Krishna Karthik K., *Sundaram S.

Department of Chemical Engineering, National Institute of Technology, Tiruchirapalli-620015, India

*Department of Electronics and Instrumentation, SASTRA University, Thanjavur, India

Tel.: +91431-2503111, +91-9487412478

E-mail: ariva@nitt.edu




Received: 22 October 2008   /Accepted: 24 March 2009   /Published: 31 March 2009


Abstract: Two-phase flow of water-air mixture through a pneumatic control valve for varying openings and varying ratios of flow rates was studied. The pressure drop increased with air-water ratio and the degree of variation depended on the valve opening. The friction factor decreases with Reynolds number and was also a function of valve opening. Two phase multiplier was correlated to Lockhart-Martinelli parameter and was decreasing as found in literature. Valve characteristics in terms of lift and fraction of maximum flow with quality as parameter showed that air water ratio drastically changed the characteristics.


Keywords: Control valve, Lockhart-martenelli parameter, Air-water system, Quality


 Acrobat reader logo Click <here> or title of paper to download the full pages article (805 Kb)





1999 - 2009 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - Membership - Submit Press Release

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - e-Shop - Site Map