Monday, June 06, 2011

ENGR 224 - Final Exam , June 13, 2011, 9-11AM, SMT 354

Please post any questions relating to the final exam as comments on this blog post.

The comprehensive final covers CB chapters 1 - 7 and the assigned parts of chapters 9 - 11 or LT chapters 1 - 10.

The test will be a 2-hour, closed book test. You will be allowed to use FOUR 8.5"x11" cheat sheets. You can write or print on both sides of your cheat sheets.

It has been a great pleasure to work with you this quarter. I know it is a challenging course, but you cam through in good form. Best of luck to you in your career ahead.

14 comments:

Jayson said...

I just wanted to let you know that the solution for HW number 7 is broken... I was hoping I could look at it.

Thanks

Dr. B said...

Jayson 5:12pm
It did not upload properly yesterday. I just uploaded it again and tested the link. It is working properly now.

Thank you for letting me know there was a problem.

Adios,
Bill

Jayson said...

I have a question about flash drums. Say you have a Lower cycle and a Upper Cycle. From the lower cycle stream 3 goes into the Flash drum and stream 4 goes out of the flash drum back into the lower cycle. Similarly stream 5 goes into the flash drum and stream 6 comes out of the flash drum and back into the Upper Cycle. Does mdot3=mdot4 and also mdot5=mdot6

Jayson said...

Also is there going to be a problem that is as difficult as WB-3 From HW 7? There are a few tricks in that one...

Anonymous said...

Dr. B, are going to give the diagram of the cycle in the final exam (not just saying the name of the cycle) ? I do not mean the T-S or P-V diagram, just diagram of the cycle. It is hard to remember all the cycle because there are lots of cycle.

Dr. B said...

Jayson , 5:12pm
I don't have the same diagram in from to me that you are looking at. But I can tell that the flow rate of all of the streams in the upper cycle are the same. The flow rate in the lower cycle may be different from the upper cycle flow rate. But all of the streams in the lower cycle have the same flow rate as each other. So, I think the short answer is yes.

Dr. B said...

Anon , 2:38pm
I will give you the process flow diagram. Yes, you will need to produce a TS Diagram. Keep in mind that you need to UNDERSTAND the process flow diagram, because I may make up a process flow diagram you have not seen before !

Best of luck !

Camden said...

On example problem 10E-1 on learnthermo, ideal regenerative brayton refrigeration cycle, the ts diagram drawn seems kinda weird to me. is the turbine effluent always the lowest temp and entropy and the stream after the compressor the highest temp and entropy for a refrigeration cycle?

Dr. B said...

Camden , 8:14pm
The short answer is yes. The effluent from ONE of the turbines (if there is more than one) is the coldest stream in most gas refrigeration systems. The effluent from ONE compressor (if there is more than one compressor) is always the hottest stream.

Best of luck today!

Anonymous said...

Dr. B I was hoping you could take a look at your chapter 1 first aid kit link. it isnt working where it says "click here" on page 8 of lesson 1B

Dr. B said...

Anon 5:11 pm
I have not yet posted my chapter summary documents. If you send me an email, I can send you a copy.
Thank you,
Dr. B

Amit Patil India said...

Dr.B...Could you please post a link explaining carnot cycle and rankine cycle.....would really appreciate it.....

Dr. B said...

Hi Amit,

For Carnot Cycle, try:
http://www.learnthermo.com/T1-tutorial/ch09/lesson-B/pg01.php

For Rankine Cycle, try:
http://www.learnthermo.com/examples/ch09/p-9c-1.php

Best of luck,
Dr. B

Anonymous said...

Miss this class ^^