Last change
on this file since 997 was
847,
checked in by Rafael de Pelegrini Soares, 13 years ago

Another estimation sample

File size:
1.1 KB

Line  

1  

2  #**************************************************************** 

3  # Simple static parameter estimation. 

4  # 

5  # 

6  # Example 4.2 from "Applied Parameter Estimation for 

7  # Chemical Engineers", Englezos & Kalogerakis 

8  # 

9  # Author: Rafael de Pelegrini Soares 

10  #****************************************************************# 

11  

12  FlowSheet SampleEstimationModel 

13  VARIABLES 

14  y as Real; 

15  x as Real; 

16  

17  PARAMETERS 

18  k1 as Real(Default=1.5); 

19  k2 as Real(Default=1.5); 

20  k3 as Real(Default=1.5); 

21  

22  SPECIFY 

23  x = 1; 

24  

25  EQUATIONS 

26  y = k1 + k2 * exp(k3*x); 

27  

28  OPTIONS 

29  Dynamic = false; 

30  end 

31  

32  

33  # 

34  # Expected solution is: 

35  # k = [ 523.305 156.947 0.199665 ] 

36  # 

37  Estimation SampleEstimation as SampleEstimationModel 

38  

39  ESTIMATE 

40  # PAR START LOWER UPPER UNIT 

41  k1 100 0 1000; 

42  k2 200 300 0; 

43  k3 1 10 0; 

44  

45  EXPERIMENTS 

46  # FILE WEIGTH 

47  "sample_estimation.dat" 1; 

48  

49  OPTIONS 

50  NumJac = false; 

51  Statistics ( 

52  Parameter = true 

53  ); 

54  

55  NLPSolver( 

56  File = "ipopt_emso" 

57  #File = "nmsearch" 

58  #File = "complex", MaxIterations=1000 

59  ); 

60  Dynamic = false; 

61  end 

Note: See
TracBrowser
for help on using the repository browser.