Fire Behavior & Combustion

For this assignment, you will complete the second essay of the scenario-based case study. The essay should be a one- to two-page narrative focusing on arguments that support what the authors discuss in Chapter 4 and Chapter 5, as well as other research that you conduct related to these concepts.
The questions below may help you in focusing your essay on the one or two concepts chosen.
Why is it important to know the difference between intensive and extensive properties in the scenario?
What is the difference between conduction and radiation?
How does the fact that heat flows from hotter to colder affect how you fight a fire using the scenario?
What is the difference between thermally thick and thermally thin?
What is radiative heat transfer?
Why is it important to understand the effects of pain from radiant exposure?
How does fire affect building structures, and how can that knowledge be used when fighting a structure fire?



















Branching Paths: Unit V11 project

Q 1

Extensive qualities include volume and mass and are relative to the quantity of substance actual measurement. On the other hand density and color are typical examples intensive properties that are not influenced by the quantity of matter existing in it (Almatrafi, E., & Khaliq, 2021).

Q 2

Conduction; heat is transferred between objects by direct contact; this heat is transferred due to a temperature differential. As a result, heat transfer via conduction is gradual, while during radiation heat transpires via electromagnetic waves without the use of particles (Almatrafi, E., & Khaliq, 2021).

Q 3

A fire burns by increasing the temperature of fuel needed to the threshold in which it ignites; as a result, unaccounted-for factors such as wind can hasten the development of fire because neighboring flames’ cause radiant heat to flow through the windows and ignite anything inside (Tien et al., 2008).

Q 4

The term “thermally thin” refers to the time it takes to transfer heat from one side of a material to the other. (Xu, 2020). While a solid that absorbs heat energy more readily near the surface and does not transfer it as rapidly through the material to the opposite side is said to be “thermally thick.”

Q 5

Radiative heat transfer doesn’t really necessitate the interaction of particles. Radiation can, in fact, pass in a vacuum: the sun’s radiation reaching the Planet through space’s vacuum (Xu, 2020). Radiation can flow through any semitransparent or transparent media, including dry air or water, or glass.

Q 6

Radiant heat transfer is quite dangerous. Fire releases electromagnetic radiation that can hurt bystanders or cause items to burn spontaneously. Not all fire-resistant glass stops radiant heat transmission (Tien et al., 2008). There’s fire where there’s smoke. And there’s fire; there’s also radiant heat, which is an unseen but lethal menace.


Q 7

Concrete can spall explosively when exposed to high temperatures. When the moisture in the pores of the concrete is heated to the degree where it cannot escape quickly enough through the fine pores, this phenomenon happens (Rockett and Milke, 2008).
















Almatrafi, E., & Khaliq, A. (2021). Investigation of a novel solar-powered trigeneration system for simultaneous production of electricity, heating, and refrigeration below freezing. Journal of Solar Energy Engineering, 1-43.

Rockett, J. A., and J. A. Milke. (2008). Conduction of Heat in Solids. In: SFPE Handbook of Fire Protection Engineering, 4th ed., P. J. DiNenno, ed. Quincy, MA: National Fire Protection Association, Chapter 1–2.

Tien, C. L., K. Y. Lee, and A. J. Stretton. (2008). Radiation Heat Transfer. In: SFPE Handbook of Fire Protection Engineering, 4th ed., P. J. DiNenno, ed. Quincy, MA: National Fire Protection Association, Chapter 1–4.

Xu, L., Dai, G., & Huang, J. (2020). Transformation multithermotics: controlling radiation and conduction simultaneously. Physical Review Applied13(2), 024063.

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