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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 /3472/CH7/EX7.10 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3472/CH7/EX7.10')
| -rw-r--r-- | 3472/CH7/EX7.10/Example7_10.sce | 44 |
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diff --git a/3472/CH7/EX7.10/Example7_10.sce b/3472/CH7/EX7.10/Example7_10.sce new file mode 100644 index 000000000..574c4fb72 --- /dev/null +++ b/3472/CH7/EX7.10/Example7_10.sce @@ -0,0 +1,44 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART I : GENERATION
+// CHAPTER 7: TARIFFS AND ECONOMIC ASPECTS IN POWER GENERATION
+
+// EXAMPLE : 7.10 :
+// Page number 76
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+cap_installed = 210.0*10**3 // Installed capacity of the station(kW)
+capital_cost_kW = 1000.0 // Capital cost of station(Rs/kW)
+fixed_cost_per = 0.13 // Fixed cost = 13% * cost of investment
+variable_cost_per = 1.3 // Variable cost = 1.3*fixed cost
+LF_1 = 1.0 // Load factor
+LF_2 = 0.5 // Load factor
+
+// Calculations
+MD = cap_installed // Maximum demand(kW)
+hours_year = 365.0*24 // Total hours in a year
+capital_cost = capital_cost_kW*cap_installed // Capital cost of station(Rs)
+// Case(i) At 100% load factor
+fixed_cost_1 = capital_cost*fixed_cost_per // Fixed cost(Rs)
+variable_cost_1 = variable_cost_per*fixed_cost_1 // Variable cost(Rs)
+operating_cost_1 = fixed_cost_1+variable_cost_1 // Operating cost per annum(Rs)
+units_gen_1 = LF_1*MD*hours_year // Total units generated(kWh)
+cost_gen_1 = operating_cost_1*100/units_gen_1 // Cost of generation per kWh(Paise)
+// Case(ii) At 50% load factor
+fixed_cost_2 = capital_cost*fixed_cost_per // Fixed cost(Rs)
+units_gen_2 = LF_2*MD*hours_year // Total units generated(kWh)
+variable_cost_2 = variable_cost_1*units_gen_2/units_gen_1 // Variable cost(Rs)
+operating_cost_2 = fixed_cost_2+variable_cost_2 // Operating cost per annum(Rs)
+cost_gen_2 = operating_cost_2*100/units_gen_2 // Cost of generation per kWh(Paise)
+
+// Results
+disp("PART I - EXAMPLE : 7.10 : SOLUTION :-")
+printf("\nCost of generation per kWh at 100 percent load factor = %.2f paise", cost_gen_1)
+printf("\nCost of generation per kWh at 50 percent load factor = %.1f paise", cost_gen_2)
+printf("\nComment: As the load factor is reduced, cost of generation is increased\n")
+printf("\nNOTE: ERROR: (1) In problem statement, Capital cost of station must be Rs. 1000/kW, not Rs. 1000/MW")
+printf("\n (2) Calculation mistake in Total units generated in Case(i) in textbook")
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