Heat Transfer And Combustion

Today we are going to talk and discuss about the concepts that will sound very important and necessary for humanity around the whole world: heat transfer and combustion.

Heat transfer and combustion are important concepts that are a part of everyday life. Heat, combustion, energy and temperature pervade our lives. We give a great attention to hot and cold in deciding what we will wear during the whole day. Many of us have heating and cooling devices in our homes, schools and work places that control and adjust the suitable temperature for our bodies during the day and night to keep us as comfortable as possible without spending too much money. Heat is a concept used pervasively throughout various engineering fields.

We should identify combustion, heat transfer and the three basic mechanisms of heat transfer. Combustion is defined as a high-temperature exothermic redox chemical reaction between a fuel and an oxidant. Combustion in a fire produces a flame, and the heat produced can make combustion self-sustaining. Combustion is often a complicated sequence of elementary radical reactions. Combustion is often hot enough that light in the form of either glowing or a flame is produced. There are three types of combustion depend upon the ratio between the oxidant and the fuel. These three types are stoichiometric, lean and rich combustion. Heat transfer, also referred to simply as heat, is defined as the movement of thermal energy from one system to another system of different temperature. These systems could be two solids, a solid and a liquid or gas, or even within a liquid or

Consequently, the conclusion is attained based on the present work results.

1.2. Layout of thesis:

Chapter (1): Introduction, discusses and explain the importance of the heat transfer and the combustion and the scope of the present work.

Chapter (2): literature survey, illustrate and discuss about the previous researches and investigations that were carried out which related to the enhancement of combustion and heat transfer.

Chapter (3): Test rig, describes the test rig configuration and the measuring devices used. Also, the calibration curves for each measuring device are presented.

Chapter (4): Experimental procedures, Chapter (5): Results and Discussion, contains the present work results and discussion. This chapter includes the results of the characteristics of heat transfer and combustion without annular rib insertion for the three types of combustion. These results are considered a reference base for those with annular rib insertion. The effects of the rib shape and its axial location on the gas analysis, combustion and heat transfer are also discussed.

Chapter (6): Conclusions, contains the conclusions and the recommendations for future