# Heat Transfer Book Recommendation

1. May 1, 2015

### basty

I need recommendation about heat transfer book . I am having a difficult time learning the concepts. I've tried reading several dfiferent textbooks(e.g. Cengel, Kreith, Chris Long), and though they sometimtes state the same theorem using different wording, different arguments, etc, I am still having a hard time understanding it. I often learn best when I solve problems that use concepts, but a lot of these textbooks do not have many problems or detailed step by step solutions.

What are some good heat transfer books with many solved problems and a chapter about combined heat transfer?

2. May 1, 2015

### Staff: Mentor

Bird, Stewart, and Lightfoot, Transport Phenomena

What's combined heat transfer?

Chet

3. May 1, 2015

### basty

Transport Phenomena? I am guessing the topic is too advance for me.

I am looking for the basic / introduction of heat transfer.

Where three modes of heat transfer (conduction, convection, and radiation) are present.

4. May 1, 2015

### basty

Last edited: May 1, 2015
5. May 3, 2015

### verty

Maybe it's the language that is confusing you. Here is some text from Kreith's book:

So this paragraph has four sentences, what do they say?
1. Definition of forced convection.
2. Boundary layers are confined in a tube or duct.
3. Hydraulic diameter is the characteristic length.
4. This part of the theory is important for heat exchangers.

Right? It's simple but hidden with rather terse language. Engineering books tend to be like that, using more words than necessary, and sometimes that makes things less clear.

Also you need to have the prerequisite knowledge. For example, we can already see that knowing what the characteristic length is and what it is used for is going to be important for this chapter. We can surmise that if we know that, what job the characteristic length plays, this chapter is not going to be difficult because it'll use it in a new way but it will be similar or analogous.

But we can also say that if we don't know what it is or don't know how it is used, this chapter will be more difficult. Probably they aren't going to explain it a lot and will just show what changes in this case. Perhaps this is what you mean when you say they discuss the same theorem with different words but it still isn't clear. It could be that you missed something earlier or don't realise that they are assuming you know something or are making a comparison or analogy.

Because analogy is very, very important. It is always important to ask, how does this compare to other situations that are similar? How is it the same and how is it different? Does it make sense why it is different like this and why it is the same like that?

For example, why does the author say "the hydraulic diameter, rather than the duct length, is used as the characteristic length"? Why should the diameter be used as the length? Until you know why, it is going to seem odd and there must be a reason why, and when you know it it'll make that much more sense.

So that's my advice, try to see what is important in the words, try to see what is assumed, try to see what analogies are being drawn, what comparisons are being made, and try to answer questions like the one above, about anything that seems odd. There must be a reason and it'll seem odd until you know the reason.