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author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
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committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3731/CH4/EX4.1/Ex4_1.sce | |
parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
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-rw-r--r-- | 3731/CH4/EX4.1/Ex4_1.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/3731/CH4/EX4.1/Ex4_1.sce b/3731/CH4/EX4.1/Ex4_1.sce new file mode 100644 index 000000000..152d1bea0 --- /dev/null +++ b/3731/CH4/EX4.1/Ex4_1.sce @@ -0,0 +1,21 @@ +//Chapter 4: Selection of Motor Power Rating
+//Example 1
+clc;
+
+//Variable Initialization
+t_min=40 // Minimum Temperature Rise in degree Celsius
+t_ri=15 // Temperature Rise in degree Celsius
+t_cl=10 // Clutched Time in sec
+t_de=20 // Declutched Time in sec
+k= 60 // Heating and Cooling time constant
+
+//Solution
+
+x=exp(-t_de/k)
+y=exp(-t_cl/k)
+
+th2= (t_min-t_ri*(1-x))/x //as t_min=t_ri(1-x)+th2*x
+th_s=(th2-t_min*y)/(1-y) //as th2=th_s(1-y)+t_min*y
+
+mprintf("Maximum temperature during the duty cycle :%.1f °C",th2)
+mprintf("\n Temperature when the load is clutched continuously :%.1f °C",th_s)
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