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Optimization of a gas flow system by Raman flame temperature measurements

Wiersma, L. R. (2014) Optimization of a gas flow system by Raman flame temperature measurements. Bachelor's Thesis, Physics.

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Abstract

In one-dimensional methane-air flames, the equivalence ratio (ϕ) and outflow velocity are the parameters that influence a flame’s properties. It is therefore important that those parameters be monitored well. In this research, 4 methods of determining ϕ have been compared: an O2- and a CH4-concentration meter and two sets of 2 mass flow meters (one for methane, one for air). All meters agreed very well about ϕ, within 5% of each other. Raman flame temperature measurements pointed out that the ϕs measured are, for all meters, close to the real value. Because the systematic error in Raman temperature measurements as a function of ϕ is unknown, it is impossible to determine which meter is the best one. The graphs obtained confirm that Raman spectroscopy is a good way to measure temperatures within about 60 K, and that all meters perform quite well.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Physics
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 08:01
Last Modified: 15 Feb 2018 08:01
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/12336

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