diff options
Diffstat (limited to '3685/CH8/EX8.9')
| -rw-r--r-- | 3685/CH8/EX8.9/Ex8_9.sce | 18 | ||||
| -rw-r--r-- | 3685/CH8/EX8.9/Ex8_9.txt | 4 |
2 files changed, 22 insertions, 0 deletions
diff --git a/3685/CH8/EX8.9/Ex8_9.sce b/3685/CH8/EX8.9/Ex8_9.sce new file mode 100644 index 000000000..9bb623331 --- /dev/null +++ b/3685/CH8/EX8.9/Ex8_9.sce @@ -0,0 +1,18 @@ +clc
+T2 = 790 // Final temperature of gas in degree Celsius
+T1 = 800 // Initial temperature of gas in degree Celsius
+m = 2 // Mass flow rate in kg/s
+cp = 1.1 // Specific heat capacity in kJ/KgK
+T0 = 300 // Ambient temperature in K
+
+printf("\n Example 8.9")
+I = m*cp*(((T1+273)-(T2+273))-T0*(log((T1+273)/(T2+273)))) // irreversibility rate
+printf("\n The irreversibility rate is %f kW",I)
+
+// At lower temperature
+T1_ = 80 // Initial temperature of gas in degree Celsius
+T2_ = 70 // Initial temperature of gas in degree Celsius
+I_ = m*cp*(((T1_+273)-(T2_+273))-T0*(log((T1_+273)/(T2_+273)))) // irreversibility rate
+printf("\n The irreversibility rate at lower temperature is %f kW",I_)
+//The answers vary due to round off error
+
diff --git a/3685/CH8/EX8.9/Ex8_9.txt b/3685/CH8/EX8.9/Ex8_9.txt new file mode 100644 index 000000000..8d2a562e4 --- /dev/null +++ b/3685/CH8/EX8.9/Ex8_9.txt @@ -0,0 +1,4 @@ +
+ Example 8.9
+ The irreversibility rate is 15.820180 kW
+ The irreversibility rate at lower temperature is 3.033178 kW
\ No newline at end of file |