Help with designing a power generating system

  • Thread starter Thread starter Simonglo
  • Start date Start date
  • Tags Tags
    homework help
AI Thread Summary
Designing a power generating system involves utilizing a hot air stream at 700°C and 8 Bar, along with a hot steam stream at 350°C and 1 Bar, while considering a lake at 16°C and ambient air at 22°C. A Rankine cycle system is proposed, leveraging the available steam source, but challenges arise in integrating the lake water and hot air stream. Calculating the enthalpy of steam before and after turbine entry is crucial for determining power output, yet resources on this topic are lacking in study materials. Suggestions for incorporating lake water and understanding steam turbine enthalpy calculations are sought. Effective design will require addressing these integration and calculation challenges.
Simonglo
Messages
2
Reaction score
0
Thread moved to the schoolwork forums and OP has been reminded to always show their work on schoolwork problems.
TL;DR Summary: I've been asked to design a power generating system. I could really use some help on how to approach this question, as I cant really find something like that in my study meterial.

So I've been asked to design a system that would produce the biggest amount of power possible, using these parameters:

A Hot air stream, with a temperature of 700C, preasure of 8 Bar and a flow rate of 10 KG/min.
A stream of hot steam, with a temperature of 350C, preasure of 1 BAR, and a flow rate of 10KG/min.
A lake with a static temperature of 16C, and the air around the system which is at 22C and 1 Bar.

Any suggestions on how to approach this?
 
Physics news on Phys.org
what are your thoughts so far?
 
Chestermiller said:
what are your thoughts so far?
I was thinking of making a Rankine cycle system, since i'm supplied with a source of steam. The thing is, i'm not sure how to incorporate the water of the lake or the hot air stream into it. Also, while finding the Enthalpy for the steam before entering a turbine is easy enough, i'm not sure how to find the Enthalpy once it exits to calculate to amount of power the turbine generates.
 
Simonglo said:
I cant really find something like that in my study material.
Does your textbook / do your lecture notes have anything about steam turbines ?

##\ ##
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Trying to understand the logic behind adding vectors with an angle between them'
My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
Back
Top