ABSTRACT
In this chapter, we will introduce the basic principles of flow measurements that can be used in a combustion system. It is assumed that the reader has already been introduced to the basics of intrusive and nonintrusive measurement methods covering both the physical and chemical aspects, particularly with regard to fluid flow and heat transfer. In this chapter, we review the basic measurement pertaining to properties such as gas velocity, pressure, density, temperature, and sound pressure. The problems associated with these measurements in a combustion system will be discussed in detail as they pose interesting problems as compared to the isothermal fluid flow system. Because the combustion process makes the environment hostile due to high temperature, chemical reactions, and a high-pressure environment. Chemical reactions occur locally in combustion systems, so local measurements must be carried out carefully.
