Am I missing out by not writing the energy balance?

  • Thread starter civilengoo
  • Start date
  • #1

Homework Statement:

Been studying for this thermo exam I've got coming up and I think I've been studying it all the wrong way and I could make my life a whole lot easier if I used energy balances, but I just don't understand them and how to write them! Would somebody be able to fully explain to me how to write these energy balances out and then how to simplify it down? Example question below https://imgur.com/MOvnLX6

Relevant Equations:

Energy Balance for thermodynamics
Attempt:
No clue what equations to use from here.
 

Attachments

Answers and Replies

  • #2
34,305
5,947
I could make my life a whole lot easier if I used energy balances, but I just don't understand them and how to write them!
No clue what equations to use from here
Isn't the basic idea that energy in has to equal energy out, since energy can't be destroyed?
 
  • #4
369
74
No clue what equations to use from here.
In this case, the turbine is an example of a steady flow device, so it would be worth trying to use the 'steady flow energy equation' (at its core, it is a conservation of energy equation).
 
  • #5
20,604
4,443
In this case, the turbine is an example of a steady flow device, so it would be worth trying to use the 'steady flow energy equation' (at its core, it is a conservation of energy equation).
OK so far. So let's see what you do next.
 

Related Threads on Am I missing out by not writing the energy balance?

Replies
0
Views
2K
  • Last Post
Replies
23
Views
2K
  • Last Post
3
Replies
61
Views
12K
Replies
1
Views
670
  • Last Post
Replies
1
Views
3K
Replies
2
Views
3K
  • Last Post
Replies
0
Views
4K
Replies
0
Views
1K
Replies
2
Views
2K
Replies
13
Views
2K
Top