Re: [TRNSYS-users] Using to pairs of simulation start time and simulation stop time in a project

[knut.erik.enerstvedt@niva.no]

Hello Mehdi,

You can use a forcing function (Type
14) and an equation block to solve this issue. Step 1: Set the forcing
function to output 0 for the hours of the year you define as winter and
1 for the hours you define as summer. Step 2: In an equation block with
an input variable "Summer" from the forcing function, define
two equations "c_coil_ctrl = Summer" and "h_coil_ctrl =
1 - Summer". Step 3: Link "c_coil_ctrl" to all control signals
concerning the cooling coil (pumps, fans etc.) and "h_coil_ctrl"
to all control signals concerning the heating coil. This will run the cooling
coil in summer and heating coil in winter.

Best regards,
Knut Erik Enerstvedt 


----- Message from mahdi
shahrestani <mahdishahrestani@yahoo.com> on Sat, 5 Jun 2010 18:08:23
-0700 (PDT) ----

>Hello everybody 
 
>My project has two main parts, first cooling coil and the second heating
coil. I want to run the cooling coil in summer >and heating coil in
winter. 
 
>As far as I know, start and stop run time in “control card” are applicable
to all equipment but I need to run cooling part >in summer and heating
parts in winter.
>I was wondering if any body could give me some hint to solve the issue.
 
>Regards
>Mehdi




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