Re: [EnergyPlus_Support] put an equation in a field

[Linda Lawrie <linda@xxxxxxxxxxxxxx>]

It looks like you are trying to use the Parametric
Preprocessor?  It's use is described in the Auxiliary Programs
document.

At 09:32 AM 3/21/2013, Mayeul FAURE wrote:


> Hi,
>
> I want to calculate the economic cost of a construction. I use for that
> the class "ComponentCost:LineItem"
>
> For example, here glass wool, I use a key replacing the material's
> thickness of a construction (@@1@@) which will take several values
> (0.1,0.2,0.3...). I want the cost for each value. My formula is :
> Cost(?/m²)= 326,,67*thickness + 2,83. How can I introduce it in the
> field "cost per area"? Here is my code, it returns me the
> severe error below: 
>
>
> ** Severe  ** ComponentCost:LineItem: "COSTGLASSWOOL"
> Construction object needs non-zero construction costs per square
> meter
>    **  Fatal  ** Errors found in processing cost
> estimate input
>
> ComponentCost:LineItem,
>    
> costglasswool,          
> !- Name
>    
> ,                       
> !- Type
>    
> Construction,           
> !- Line Item Type
>    
> 1,                      
> !- Item Name
>    
> ,                       
> !- Object End Use Key
>    
> ,                       
> !- Cost per Each {$}
>     = @@1@@  * 326.67 + 2.83;  !- Cost per Area
> {$/m2}
>
> Thank you in advance for helping,
>
> Mayeul FAURE
> HEI-Lille
> France

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