diff options
Diffstat (limited to '3472/CH40/EX40.2/Example40_2.sce')
| -rw-r--r-- | 3472/CH40/EX40.2/Example40_2.sce | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/3472/CH40/EX40.2/Example40_2.sce b/3472/CH40/EX40.2/Example40_2.sce new file mode 100644 index 000000000..1f8a7f3d3 --- /dev/null +++ b/3472/CH40/EX40.2/Example40_2.sce @@ -0,0 +1,36 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART IV : UTILIZATION AND TRACTION
+// CHAPTER 2: HEATING AND WELDING
+
+// EXAMPLE : 2.2 :
+// Page number 725
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+P = 15.0*10**3 // Power supplied(W)
+V = 220.0 // Voltage(V)
+T_w = 1000.0 // Temperature of wire(°C)
+T_c = 600.0 // Temperature of charges(°C)
+k = 0.6 // Radiatting efficiency
+e = 0.9 // Emissivity
+thick = 0.25/1000 // Thickness of nickel-chrome strip(m)
+
+// Calculations
+rho = 1.016/10**6 // Specific resistance(ohm-m)
+R = V**2/P // Resistance(ohm)
+l_w = R*thick/rho // Length of strip in terms of w
+T_1 = T_w+273 // Absolute temperature(°C)
+T_2 = T_c+273 // Absolute temperature(°C)
+H = 5.72*10**4*k*e*((T_1/1000)**4-(T_2/1000)**4) // Heat produced(watts/sq.m)
+wl = P/(2*H)
+w = (wl/l_w)**0.5 // Width of nickel-chrome strip(m)
+l = w*l_w // Length of nickel-chrome strip(m)
+
+// Results
+disp("PART IV - EXAMPLE : 2.2 : SOLUTION :-")
+printf("\nWidth of nickel-chrome strip, w = %.3f cm", w*100)
+printf("\nLength of nickel-chrome strip, l = %.1f m", l)
|