Liquid water at 20 degrees celsius is heated in a mixing chamber by obtaining a mixture with a saturated steam as shown in Fig. 2. As shown in this figure, the liquid water and the saturated vapor enter this chamber with mass flow rate values of 7.2 kg/s and 0.35 kg/s, respectively. On the other hand, the mixed fluid leaves this chamber at 50 degrees celsius, as a liquid. If the ambient temperature of the surroundings is at 15 degrees celsius, determine, a) The temperature of the saturated vapor which is entering this mixing
Liquid water at 20 degrees celsius is heated in a mixing chamber by obtaining a mixture with a saturated steam as shown in Fig. 2. As shown in this figure, the liquid water and the saturated vapor enter this chamber with mass flow rate values of 7.2 kg/s and 0.35 kg/s, respectively. On the other hand, the mixed fluid leaves this chamber at 50 degrees celsius, as a liquid. If the ambient temperature of the surroundings is at 15 degrees celsius, determine,
a) The temperature of the saturated vapor which is entering this mixing chamber,
b) The exergy destruction during this mixing process using the entropy balance ,
c) The exergy destruction during this mixing process using the exergy balance ,
d) The second law-efficiency of this mixing chamber device, considering this ambient temperature value of 15 degrees celsius.
(Note: Assume steady operating conditions, neglect the kinetic and potential energy changes and their calculations, as well as the heat loss from this mixing chamber is assumed as negligible)
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