• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Universitetet i Stavanger
  • Faculty of Science and Technology
  • Department of Industrial Economics, Risk Management and Planning (TN-ISØP)
  • Studentoppgaver (TN-ISØP)
  • View Item
  •   Home
  • Universitetet i Stavanger
  • Faculty of Science and Technology
  • Department of Industrial Economics, Risk Management and Planning (TN-ISØP)
  • Studentoppgaver (TN-ISØP)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

What are the effects of changing the test interval of land based safety critical valves in hydrocarbon transport systems

Nawaz, Ch Muhammad Zahid
Master thesis
Thumbnail
View/Open
Nawas, Muhammad zahid.pdf (539.2Kb)
URI
http://hdl.handle.net/11250/181903
Date
2008
Metadata
Show full item record
Collections
  • Studentoppgaver (TN-ISØP) [824]
Abstract
In this master thesis, the effects of changing the test interval of the land based safety

critical valves have been highlighted. Compliance with the regulations given by the

PSAN (Petroleum Safety Authority Norway) requires annual testing of these valves.

The testing of safety critical valves are essential to increase the probability that the

valves are able to conduct intended functions, and beneficial to improve safety and

regularity. Moreover, "Too often" testing can lead to unnecessary production loss, with

major economic consequences, and the danger/risk of test-induced errors. "Too less"

testing can lead to the valves failure, which in a result could have major consequences

in relation to safety and long downtime during repairs.

There are a number of test methods (differential pressure test, partial stroke testing etc.)

used for different safety critical valves, because Valve design, the consequences of

downtime, environmental aspects of the testing, etc. varies between different safety

critical valves. The choice of inappropriate test regimes can lead to unnecessary

downtime and environmental emissions in testing. Thus these different test methods

have great influence on the effects of changing the test interval of the safety critical

valves.

It is not simple and easy to clarify and conclude, which case of changing the test interval

is more appropriate in connection with all the effects related to the change of test

interval of these valves. As there are many factors (degradation mechanism, failure

modes, testing methods, regularity, production effects) which needs to be deeply

analyzed and evaluated for future research.
Description
Master's thesis in Risk management and societal safety
Publisher
University of Stavanger, Norway
Series
Masteroppgave/UIS-TN-IØRP/2008

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit