Raman-based measurements of greenhouse activity of combustion flue gases

Gases that are capable of absorbing and emitting infrared radiation due to their molecular structure are known as infrared active gases. Infrared activity is the underlying reason for the greenhouse effect. Hence, greenhouse gases are all infrared active. The vibrational/rotational structure that makes the molecule infrared active, also causes the energy exchange and the corresponding wavelength shift during Raman scattering. In this work, Raman scattering spectrum and infrared emission intensity in CO2-containing atmospheric jets at various temperatures and concentrations were measured. The results show that there is a linear relationship between Raman scattering intensity and infrared emission intensity. The linear relationship between Raman signal and infrared emission intensity indicates that Raman scattering can be used as a strong technique for measurement of greenhouse gases.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Kazemifar, Farzan

Contributors dc:contributor

• Kyritsis, Dimitrios C.

• Raman scattering
• Infrared activity
• Greenhouse gases
• Combustion

Statement dc:rights

• Copyright 2011 Farzan Kazemifar

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/26390

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/26390