1CHME 333 Workbook Chapter 3 – One-dimensional, Steady State Conduction •Objectives oBecome very familiar with the HDE in different coordinate systems and how to integrate it and then apply boundary conditions oUnderstand the concept of _________________and how you can use it to simplify calculations involving composite materials oUnderstand the concept of _________________when dealing with composite materials oUnderstand how to account for _______________________________in materials oApply the above concepts to the special case of _________________________________________.•Introduction oIn Chapter 2 we derived the Heat Diffusion equation for the three coordinate systems and applied it to several applications for the calculation of temperature profiles and heat transfer rates. In Chapter 3, we will narrow our focus a bit more to look at the special cases of one-dimensional, steady state conduction. These simplifications are very prevalent in heat transfer applications, and the mathematics of the solution processes are very simple. The first part of the chapter will review the general HDE for the three geometries and also introduce the concept of thermal resistance. The use of thermal resistancefor systems of composite materials will greatly simplify the mathematical analysis. Next, we will consider how uniform internal heat generationaffects the HDE solution. Finally, we will consider a majorapplication of heat transfer – heat transfer from extended surfaces (fins). This chapter is one of the longest chapters in the text, and it will likely take 2 weeks to cover all the material. Getting a good grasp on this material is important. I would rank Chapter 3 as one of the most important chapters of the text. •Review– solving conduction problems o____________________________________o____________________________________o____________________________________(Preview – we’re going to do the same thing when we get to mass transfer, only we’ll be solving for a concentration distribution and applying Fick’s Law)
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