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Example 7-ADD-2: Consider the steam plant analysed in Example 7-3(B). Re-calculate its efficiency assuming that the isentropic efficiency of the turbine is 80%. • Please answer the above question. The 7-3(B) example is attached below. Thank you Example 7-3(B) : A steam plant, shown diagrammatically in Figure 7-20, operates between a condenser pressure of 0.2 bar and boiler pressure of (20)/(b)ar , with the maximum cycle temperature of 300deg C and the flow rate of steam of 7200kg per hour. Calculate the thermal efficiency of the plant, assuming that the plant can be approximated by the Rankine cycle. You may use the following information: eta =(W_(NET))/(Q_(S)) W^(˙)=m^(˙)h_(2)-m^(˙)h_(1) ,h=h_(f)+x(h_(g)-h_(f)) properties of water and wet steam able[[p,h_(f),h_(g),s_(f),s_(g) Example 7-3(B): A steam plant, shown diagrammatically in Figure 7-20, operates between a condenser pressure of 0.2 bar and boiler pressure of 20 bar, with the maximum cycle efficiency of the plant, assuming that the plant can be approximated by the Rankine cycle. You may use the following information: n= WNET. Qs W=mh-mh h=h+xh-h properties of water and wet steam p hi hg [bar] [kJ kg] [kJ kg-1] 0.2 251.4 2609 20 908.6 2798 properties of water p S h [bar] [kJ kg1K-1] [kJ kg1] 20 0.832 253.4 properties of superheated steam p t h [bar] [C] [kJ kg1] 20 300 3024 Sf Sg [kJkg1K-1] 0.832 2.447 [kJkg-1K-1] 7.907 6.339 S [kJ kg-1K1] 6.769 Solution: The corresponding Rankine cycle is shown below: T 08 Tme Pe T6 TA Pc Tc po S 7-17

          Example 7-ADD-2: Consider the steam plant analysed in Example 7-3(B). Re-calculate its efficiency assuming that the isentropic efficiency of the turbine is 80%.
• Please answer the above question. The 7-3(B) example is attached below. Thank you 
Example 7-3(B) : A steam plant, shown diagrammatically in Figure 7-20, operates between a condenser pressure of 0.2 bar and boiler pressure of (20)/(b)ar , with the maximum cycle temperature of 300deg C and the flow rate of steam of 7200kg per hour. Calculate the thermal efficiency of the plant, assuming that the plant can be approximated by the Rankine cycle.
You may use the following information:
eta =(W_(NET))/(Q_(S))
W^(˙)=m^(˙)h_(2)-m^(˙)h_(1)
,h=h_(f)+x(h_(g)-h_(f))
properties of water and wet steam
	able[[p,h_(f),h_(g),s_(f),s_(g)
Example 7-3(B): A steam plant, shown diagrammatically in Figure 7-20, operates between a condenser pressure of 0.2 bar and boiler pressure of 20 bar, with the maximum cycle
efficiency of the plant, assuming that the plant can be approximated by the Rankine cycle.
You may use the following information: n= WNET. Qs W=mh-mh h=h+xh-h
properties of water and wet steam p hi hg [bar] [kJ kg] [kJ kg-1] 0.2 251.4 2609 20 908.6 2798 properties of water p S h [bar] [kJ kg1K-1] [kJ kg1] 20 0.832 253.4 properties of superheated steam p t h [bar] [C] [kJ kg1] 20 300 3024
Sf
Sg
[kJkg1K-1] 0.832 2.447
[kJkg-1K-1] 7.907 6.339
S
[kJ kg-1K1] 6.769
Solution: The corresponding Rankine cycle is shown below:
T
08
Tme
Pe
T6
TA
Pc
Tc
po
S
7-17

example 7 add 2 consider the steam plant analysed in example 7 3b re calculate its efficiency assuming that the isentropic efficiency of the turbine is 80 please answer the above question th 62869

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