Optic-fiber sensor for steam quality measurement

Pei Liang; Jianjun Yu; Guirong Zu; Xinjiang Li; Yang Shen; Lin Qian; Lixin Zou

doi:10.1117/12.570245

14 February 2005 Optic-fiber sensor for steam quality measurement

Pei Liang, Jianjun Yu, Guirong Zu, Xinjiang Li, Yang Shen, Lin Qian, Lixin Zou

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.570245
Event: Photonics Asia, 2004, Beijing, China

Abstract

The optic-fiber sensor for measuring steam quality has been made out based on the principle of refractivity modulation. It is made up of optic head, conduct optic fiber, light source, detector and electric circuits. Reflectivity on the boundary between optic head and two-phase steam flow can be determined by refractivity of both sides of the boundary. Intensity of reflected light on the boundary is related to the ratio of water and steam. Provided we know the value of temperature or pressure of the two-phase flow, densities of water and vapor can be known and steam quality can be converted from the volume ratio of water and steam. The measuring range of steam quality is 0-100%, and the accuracy is decided by the level of steam quality measured and by resolution power of the sensor. The resolution and sensitivity of the sensor can be tested with two sorts of liquid of known refractive index. Meanwhile, the stability of output of the sensor is also approved. The sensor has been successfully used in measurement of steam quality in a steam-injection oil well with temperature of 270°C and pressure of 8MPa. The measuring result of steam quality tallies with the actual situation.

Citation Download Citation

Pei Liang, Jianjun Yu, Guirong Zu, Xinjiang Li, Yang Shen, Lin Qian, and Lixin Zou "Optic-fiber sensor for steam quality measurement", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.570245

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available