Browse > Article
http://dx.doi.org/10.5370/KIEE.2010.59.10.1889

A Study on Accuracy Improvement in Measuring Liquid Level inside Pressurized Vessels  

Kim, Ho-Yol (한국전력공사 전력연구원)
Byun, Seung-Hyun (한국전력공사 전력연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.59, no.10, 2010 , pp. 1889-1893 More about this Journal
Abstract
Differential pressure type level measuring systems have been using widely for industrial applications like drum level measurements in power plants. Because of difficulties in specific gravity compensation for vapor and liquid inside the vessel and the sensing lines, this type of measuring systems reveal significant measuring error. In this paper, the major reason causing errors on the differential pressure type level measurement is analyzed and a method of more accurate calculation for specific gravity compensation is introduced.
Keywords
Level measurement; Specific gravity; Gravity compensation; Drum level;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Sam G. Dukelow, "The Control of Boilers" 2nd Edition, Instrument Society of America, pp. 190-191, 1991
2 김응석, 이주현, 이광훈, "보일러 드럼 수위 보정에 대한 고찰", 자동화 제어시스템 공학회, Proceedings of 13th KACC, 1998
3 Emerson Process Management, "Ovation Algorithms Reference Manual REF_1100", pp. 247-248, May. 2009
4 John E. Hewson, "Process Instrumentation Manifolds", Instrument Society of America, pp. 174-178, 1981