Re: [TRNSYS-users] dynamicdata function

[David Bradley <bradley@tess-inc.com>]

Amandine,
  This is a common error. The format of the data file read by
DynamicData is:

Values of X3
Values of X2
Values of X1
Data

what you used is:

Values of X1
Values of X2
Values of X3
Data

I think you need to rearrange your call to DynamicData so that it reads
(changes are noted in bold):

        X(1) = THW_IN
        X(2) = TCW_IN
        X(3) = TCHW_T1
        CALL DYNAMICDATA(LU_S1,NX,NVAL,NY,X,Y,INFO,*10)
        CALL LINKCK('TYPE807','DYNAMICDATA',1,807)
10      IF (ErrorFound()) RETURN 1
         FNCAP=Y(1)
         FNCOP=Y(2)

Kind regards,
 David



At 08:26 6/13/2006, Amandine LE DENN wrote:
> Dear
> users,
>  
> a DynamicData procedure is included in Type107
> code and it seems a bit different that what's described in Trnsys
> Programmers guide. In a handmade Type, I try to read my own file but
> DynamicData always give me the wrong solution.
>  
> the code is the following:
> C  GET THE PERFORMANCE DATA FROM THE S1 DATA FILE: FRACTION OF
> DESIGN CHILLED WATER CAPACITY 
> C  AND FRACTION OF DESIGN COP ARE FUNCTION OF INLET HOT WATER
> TEMPERATURE, INLET COOLING 
> C  WATER TEMPERATURE AND OUTLET CHILLED WATER TEMPERATURE
> LEVEL
>
>   NVAL=3
>   NY=2
>   NX(1)=5
>   NX(2)=3
>   NX(3)=5
>   X(1)=TCHW_T1
>   X(2)=TCW_IN
>   X(3)=THW_IN
>   CALL DYNAMICDATA(LU_S1,NX,NVAL,NY,X,Y,INFO,*10)
>   CALL LINKCK('TYPE807','DYNAMICDATA',1,807)
> 10   IF (ErrorFound()) RETURN 1
>   FNCAP=Y(1)
>   FNCOP=Y(2)
>  
> and data file is (separation = tab):
>  
> 5.5 6 7 8 9 !Chilled Water Temperature output
> at previous timestep    
> 24 29.5 31   !Entering Cooling Water
> Temperature    
> 75 80 85 88 95 !Inlet Hot Water Temperature    
> 0.87671 0.88571  ! Fraction of design capacity and design COP
> at    5.5 24 75
> 0.98630 0.88571  ! Fraction of design capacity and design COP
> at    5.5 24 80
> y1  y2    ! Fraction of design capacity and design
> COP at    5.5 24 85
> etc...
>  
>  
> Can someone detect the problem..?
>  
> thank you for your help,
>  
> Amandine LE DENN
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users@engr.wisc.edu
> https://www.cae.wisc.edu/mailman/listinfo/trnsys-users

****************************************************************************************
Thermal Energy System Specialists (TESS), LLC
David BRADLEY                           2916 Marketplace Drive - Suite 104
Partner                                        Madison, WI 53719
Phone: (608) 274-2577 USA
Fax: (608) 278-1475
E-mail: bradley@tess-inc.com
Web Pages:  http://www.tess-inc.com     and      http://www.trnsys.com

"Providing software solutions for today's energy engineering projects"
****************************************************************************************