Advanced

Nivåreglering av ångpanna i turbintanker

Gren, Anders (1975) In MSc Theses
Department of Automatic Control
Abstract
When controlling the drum water level of marine boilers the rolling of the ship may cause problems. The drum water level gets a sinusoidal disturbance, which causes a disturbance of the feed water control valve. This disturbance may proceed through the feed water pump to other steam consumers. The rolling inflates other boiler parameters too. It will be shown that stability problems may appear if the disturbances are eliminated wrongly. This work will show how a feed forward signal from the steam flow can decrease the roll effects and yet improve the control of the level by load changes.
Please use this url to cite or link to this publication:
author
Gren, Anders
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5169
ISSN
0346-5500
language
Swedish
id
8850384
date added to LUP
2016-03-29 10:25:48
date last changed
2016-03-29 10:25:48
@misc{8850384,
  abstract     = {When controlling the drum water level of marine boilers the rolling of the ship may cause problems. The drum water level gets a sinusoidal disturbance, which causes a disturbance of the feed water control valve. This disturbance may proceed through the feed water pump to other steam consumers. The rolling inflates other boiler parameters too. It will be shown that stability problems may appear if the disturbances are eliminated wrongly. This work will show how a feed forward signal from the steam flow can decrease the roll effects and yet improve the control of the level by load changes.},
  author       = {Gren, Anders},
  issn         = {0346-5500},
  language     = {swe},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Nivåreglering av ångpanna i turbintanker},
  year         = {1975},
}