[TRNSYS-users] Type 927 and type 4a

[David BRADLEY]

Alain,
   If you are using Type15 to read and process your weather data then 
you can get the hour of the day from that component. If you are not 
using Type15 for weather then you can use Type21 (Utility: Time Values: 
Type21).

   In order to run your heat pump when there is a water draw on your 
tank you will need to write an equation that looks something like the 
following:

onDraw = GT(mDraw,0)

the variable "onDraw" will have a value of 1 when "mDraw" is greater 
than zero. You will need to make "mDraw" an input to the equation block 
and connect the flow rate of your water draw to it.

   Once you have all the different pieces of your control computed 
individually (control based on temperature, control based on time of 
day, control based on water draw) you will need to write an equation 
that combines them into a single control signal that has a value of 1 
when the heat pump should be on and a value of 0 when the heat pump 
should be off. To combine them, you can either multiply them all 
together (in which case the heat pump will only be on if all of the 
individual control criteria are true) or you can use boolean functions 
to combine them in some other way. For example:

onHP = OR(OR(onDraw,onThermostat),onTimeOfDay)

Regards,
  David


On 5/12/2014 10:29, Alain Pascal Goumba wrote:
> Please,
> And i wish also simulate my project during a day of summer and winter. 
> I don't no what type is correct for this.
> Thanks!
> Le Lundi 12 mai 2014 17h25, Alain Pascal Goumba 
> <alainpascal.goumba5 at yahoo.fr> a écrit :
> Hi,
> I want to control my heat pump during the time of function. I don't no 
> exactly the type which is ideal for this. I want my pump turn off 
> during consommation of water and the function between 22h and 5h.
> Can you help me, please!
> Information: i have a control on the temperature in my tank (Type 2)
> Alain
>
>
>
>
>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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