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+clc
+//solution
+// initialization of variables
+// REFER TO FIG. 8.4
+T1=30 // outside temperature in degree celsius
+phi1=0.9 // outside relative humidity
+T2=23 // room temperature in degree celsius
+phi2=0.4 // relative humidity in room
+
+// using psychrometric chart
+w1=0.0245 // specific humidity @ 30 *C and relative humidity 0.9
+h1=93 // specific enthalpy @ 30 *C and relative humidity 0.9
+w2=w1 // during cooling humidity remains constant 
+w3=0.007 // specific humidity @ 23 *C and relative humidity 0.4
+h4=41 // final specific enthalpy
+h3=26 // specific enthalpy @ 23 *C and relative humidity 0.4
+deltaw=w3-w2 // moisture removed
+printf("the amount of moisture removed is %0.4f kg \n",deltaw)
+
+
+qout=h3-h1 // heat removed F-G-H process
+
+printf(" the heat removed is %i kJ/kg \n ",qout)
+
+qin=h4-h3 // heat added to bring to desired state
+
+printf(" the heat added is %i kJ/kg ",qin)
+
+
+
+
+
+