General Topics Flashcards
1
Q
Dual Stream Turbine Problem
Key Items to Remember
A
Given 3 steams and equal efficiency at extraction points, what is the equation for Work?
W=m1(h1 - h2) + m3(h2 - h3)
Given 3 steams, and asked to find efficiency for State 1 to State 2?
n = (h1 - h2)/(h1 - h2’)
*h3/m3 doesn’t even come into the equation
2
Q
Dual Stream Compressor Problem
W/ Air
A
TBD
3
Q
Maximum Normal Stress Theory
Maximum Shear Stress Theory
A
- FS = Su / theta
2. Sys = Syt / 2 Sys - yield strength in shear Syt - yield strength in tensile T12 = theta1 - theta2/2 —- do for all normal combinations Tmax = max (T1,T2,T3)
4
Q
Know how to find all enthalpies in a cogeneration/Rankine regeneration problem effectively - test ability on 3rd practice exam.
A
TBD
