Answer to Question #209035 in Mechanical Engineering for Paul

Question #209035

A vapour power plant working on Rankine cycle operates between boiler pressure of 500KN/M2 and condenser pressure of 0.06 bar calculate (1) The Thermal Efficiency (2) Work ratio (3) Specific steam consumption for the cycle.


1
Expert's answer
2021-06-22T05:10:00-0400

Form the tables h1=2747.5;h2=151.5+0.882416=2277.59;h3=151.5;h4=640h_1= 2747.5; h_2= 151.5+0.88*2416=2277.59; h_3= 151.5; h_4=640


(1) The Thermal Efficiency

ηT=h1h2h1h4100=2747.52277.592747.5640100=22%η_T= \frac{h_1-h_2}{h_1-h_4}*100= \frac{2747.5-2277.59}{2747.5-640}*100= 22 \%


(2) Work ratio

Work ratio =1WPWT=1h4h3h1h4=1640151.52747.5640=0.7681=1-\frac{W_P}{W_T}=1-\frac{h_4-h_3}{h_1-h_4}=1-\frac{640-151.5}{2747.5-640}=0.7681


(3) Specific steam consumption for the cycle.

SSC=3600Wnet=3600WTWP=36002107488=36001618.5=2.22kg/kWhSSC = \frac{3600}{W_{net}} = \frac{3600}{W_T-W_P}= \frac{3600}{2107-488} = \frac{3600}{1618.5}=2.22 kg/kWh


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment