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Question 1.133: Reconsider Problem 1–132. Using EES (or other) software, plo...

Reconsider Problem 1–132. Using EES (or other) software, plot the amount of ice that needs to be added to the water as a function of the ice temperature in the range of 24°C to 0°C. Discuss the results.

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“GIVEN”

V=0.0002 “[m^3]”

T_w1=20 “[C]”

T_w2=5 “[C]”

“T_ice=0 [C], parameter to be varied”

T_melting=0 “[C]”

“PROPERTIES”

rho=density(water, T=25, P=101.3) “at room temperature”

C_w=CP(water, T=25, P=101.3) “at room temperature”

C_ice=c_(‘Ice’, T_ice)
h_if=333.7 “[kJ/kg]”

“ANALYSIS”

m_w=rho*V

DELTAU_ice+DELTAU_w=0 “energy balance”

DELTAU_ice=m_ice*C_ice*(T_melting-T_ice)+m_ice*h_if

DELTAU_w=m_w*C_w*(T_w2-T_w1)

 

 

T _{\text {ice }}[ C ] m _{\text {ice }}[ k g ]
-24 0.03291
-22 0.03323
-20 0.03355
-18 0.03389
-16 0.03424
-14 0.0346
-12 0.03497
-10 0.03536
-8 0.03575
-6 0.03616
-4 0.03658
-2 0.03702
0 0.03747
111

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