Change search
ReferencesLink to record
Permanent link

Direct link
Self-Exciting Oscillation in Gas Fired Appliance
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering.
2007 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

Self exciting oscillation in gas fired appliances leads to abnormal combustion noise which is focused in this work. For studying this phenomena and modeling abnormal combustion noise a simple hand made instrument was made. Then the property of fundamental parts of unit is studied and also some practical methods for reducing the loud noise are given. These methods are based on modification of the fundamental parts of unit. The mathematical model of this phenomenon is illustrated and also the stability criteria for the unit based on this model is given. Then the effect of changing excitation point in this phenomenon is studied and finally the experimental stability diagram based on modification on fuel/air ratio is given.

Place, publisher, year, edition, pages
2007. , 43 p.
Keyword [en]
Combustion Oscillation, Combustion Chamber, Auto power spectra, Excitation point, Feedback loop, Impedance, Impulse response, Instability, Noise, Natural Resonance Frequency, Self exciting, Shape mode, Stability, Time history, Transfer function, Vicious circle.
National Category
Mechanical Engineering
URN: urn:nbn:se:bth-4164Local ID: diva2:831489
Available from: 2015-04-22 Created: 2007-04-24 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

fulltext(757 kB)32 downloads
File information
File name FULLTEXT01.pdfFile size 757 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Department of Mechanical Engineering
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 32 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 15 hits
ReferencesLink to record
Permanent link

Direct link