Question

Home W * Home W * homeW * ASE 264. * | * ASE 264 * | C fun infile.php/298541/mod_resource/content/0/Home%20Work%20Problems_Chapter%203.pdf 3.5 Determine the phase or phases in a system consisting of H20 at the following conditions and sketch p-v and T-v diagrams showing the location of each state. (a) p - 5 bar, T = 151.9°C. (b) p = 5 bar, T = 200°C. (c) T - 200°C. p = 2.5 MPa. (d) T-160°C.p- 4.8 bar. (e) = -12°C. p - 1 baru 3.6 For the problem 3.5. determine the phase at each case. The following table lists temperatures and specific volumes of water vapor a two pressures WP HE MEN CE

Answer 1

Q. n. 3.5 Solution - g of Ho at different absolute pressure ho is present . Phase or phases in a system consisting of H₂O Conditions. Here, pressure is taken das absolute 127 P=5 bar, T=151.9°C; So, it is Saturated steam. re. only Vapour phase of tho is pe as, it is 100% Vapour on Saturaled Sleanlines 107 P = 5 bar, T=200°C it is in the super heated region.ie. only to Super heates Als Vapour is presenti (C) E 200°C, p=2.5 Mpa with P-25 bar Saturahần temp. i's 223,956 C on emperature of 200°c, corresponding fregue of steam 15.5A bar i So it is minture of liquid and vapeur a kdy P=160°c, p=4.8 bar For p=4.8 bar, Saturation temp. is 150.305°C : Thus, it is in Superhealed vapour region. So, 97 is dry vapour Ley T-12°C, P=1 bar For P=1 bar, Saturation temperature is gg. 6°C; Since it is below freezing point. So, it is ice. le. Solid formi Pressure la a point / Temperal Sarerated liquid Vapor liquid of critical point regonit (o le region (steam) (T) . . O Sue. healed Cliquid + Vopone region regim (Water-Skam) i i Saturales liquid-Vapour region - Vapor Solid e be Ice-steam) Solid-Vapou region Specific Volume (V) Pr. diagram > Specific ) 7