Hello friend,

I have solved this problem in detail. At point 4 there is energy balance applied by point 2 & 3 and entry to turbine is point 6. I hope this solution will help you to understand. If you find it useful Rate the answer. If you have any doubt further feel free to ask in comment section.

Al out Solution - (m + m2) HX- 1R tecnols Tatowe m2 30 Wrz Walanting) Tat Art HX-3 +2P2=250cpa lqin in =3 kg/s - HX-A - l na = 3kg18. gas Refrigeration system Ti=-35 C & P, 21 okea » COP = Desired Effect of cooling effect Work Input HX-3 HX-4 work Input = (Wat Wez)-(Wy, the Desired Etteet » (din) x-3+ (Žin)rex-4 (in) x 3 = m ( 43-h7) > 3 (23-h7) = 3 Cp (B3-77) T3=22°c ,Tq => Find Tz = 295k

PG=500kPa P = 250kPa To 23.5°C - 308 K. 1.4 -1 308 3 ) 14 = (2) 1.4 17 = 308 20.11.43 = 252.66 k.) (99n) - 3x x (T-17) 23x1.005* (295 - 25266) nx-3 = 127.64 kW NX-3 3kg/s.

(Qin) ux-q = m (ha-hg ) = m Cp (T, -Tg) Te ~35°ce 238k Iga) find. - (93 = Suo Kla - Pg = lookpa. T8 = 12 C=285K. 1.4- 0.4 285 To TTg = 285 . = = 179.94k S0.4/.4 (Pin Jux -4 = mg (, -ty)= 3x1°005* ( 238 -179.54) (Qindex-4 3 175-036 kW) Weg = m (haha) = m (4) (T2-T,) 1 T2 = Find Ti=- 35°C =2281 I2 = ( 12 ) e o P2 2 250kpa , P, = looks

04 2.574 X232 - 309.221 to 2 25o = 72 = 2.5T4 X232 238 Wcreme GP (T-T,) = 3x1.005 % (209.22–232) [W, = 214.74 kW] 2 .

Wce =lm thig) [hs-ha] =( m + p) cp [Ts - Ty] fox Tч - Ехалат даам се » ma hat im hzz (m + h) hu 3 x ₂ + 3x hz =(3+3)xhy h₂ th3=zhy 61, +4 та свету 1142 To » 309-22 + 255 9-22 +295 = 30211K 0977777777777779999999999999999 2 for Ts=) Tu - Pul Ps =50kPa Pч 2 2 So La T4 2302-11k. oy 2Town 302.11 2 SO Ts = 302.11 x 27.4 = 368.276K üc = (matriz) x4 *( Ts-ty) = (3+3)x1-005*(368.276– 302-11) I W = 398.98 kw)

Wy, = n(ha-haw Assuming 6 is the Inlet state for turbine Ti W = ng Co (To-Tz) To= 35€ = 308k. WT, = 3x1.005 % (zne T7252.66K 165,= 166.85 kW) WOTE = M (ng-ng) z vin col Tg-ty) m₂ = 3kgle. To=12c = 28514, Tg =179-94k. 16 17 = 3 X1.005 X (285- 179.94 ) – 316.7559kw | 3 X 1.00 SX Work Input = (We, twe) - (Witt W) - (214-74+ 398.98 )–(166.85 +316.7559) win = 130.11 kw) Desired Effect = (linux-3+ indica = 127.64 + 175.036=302-676 kW 1 Copa Desired Effect = 302.676 -= 2.326 Win 130:11 Auswer.

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