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Flödesmätning i smörjoljesystem med bärbar ultraljudsmätare: Underlag till en arbetsinstruktion
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
2016 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

 This thesis was conducted at Siemens

Industrial Turbomachinery (SIT) under a period

of ten weeks. Siemens service department at

this company takes care of the aftermarket of

the turbines and provides inspection, spare

parts and measures to increase the efficiency of

the machines. SIT provides also oil lubrication

systems. Because the turbomachines have a

variety of pipe systems and flows, it may need

to perform flow measurements for

troubleshooting, optimization and detection of

oil leaks. Through the years, SIT has gathered

data from flow measurements that may suggest

that a tubomachine system is operating at over

or under the designed capacity. However, SIT

does not have enough knowledge about proper

flow measurements, evaluation of the test

results and necessary measures to be taken,

therefor no clear work instruction has been

established. The goal of this work is therefore to

provide a document about applicable flow

measurement methods, based on which the

company at a later phase can establish

necessary work instruction.

In order to write this document, necessary

theory was gathered in order to understand

how oil lubrication systems and flow

measurement systems work. The author and

some of SIT employees attended a training

course in portable ultrasound measurement

system provided by PEMA Control AB in

Gothenburg. After the course, practical data

collection and a summary of the entire flow

measurement process was documented. This

process was later tested in two experiments.

The experiment results, as well as the practical

measurement steps were then analyzed and

discussed. After the analysis and evaluation a

proposal of measurement procedure was


Conclusions of the report include

recommendations for improvement of the

measurement process. The recommendations

include necessary information about what the

staff should think about before-, during- and

after the measurement. This is to make the

measurement as efficient as possible and to

minimize the risk of engine failure and personal

injuries. Other recommendations were to add

necessary equipment to the existing flow

measurement bag.

Place, publisher, year, edition, pages
2016. , 54 p.
Keyword [sv]
Flödesmätning, ultraljudsmätare, arbetsinstruktion, felsökning, service
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:uu:diva-302009ISRN: UTH-INGUTB-EX-M-2016/11-SEOAI: oai:DiVA.org:uu-302009DiVA: diva2:955965
Educational program
Bachelor Programme in Mechanical Engineering
Available from: 2016-08-30 Created: 2016-08-28 Last updated: 2016-08-30Bibliographically approved

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