[TRNSYS-users] problem with type 668

[berkane ahlem]

Thank you sir
Le 10 avr. 2018 17:53, "Jeff Thornton via TRNSYS-users" <
trnsys-users at lists.onebuilding.org> a écrit :

> We don't officially support TRNSYS 16 as it's two versions out of date.
> But I took a quick look at your project and several things stood out
> immediately.  The first is that you are using a 1-hour time step.  That
> means your control decisions are made once an hour - likely the biggest
> cause of your issues.  Typically a sysytem like this should run at around a
> 1-minute time step.  The other thing I caught was that your pump flow rates
> are only about a third of the minimum flow rate that the heap pump
> expects.  This will create a very large temperature difference across both
> sides of the heat pump.
>
> Jeff
>
> ---
> Jeff Thornton
> President - TESS LLC
> 22 N. Carroll Street, Madison WI USA 53703
> Office: (608) 274-2577  Fax: (608) 278-1475
> www.tess-inc.com
> E-Mail: thornton at tess-inc.com
>
>
> On 04/10/2018 8:19 am, berkane ahlem via TRNSYS-users wrote:
>
>> dear sirs,
>> i'am using the type 668 (water to water heat pump ) in trnsys16
>> coupled with horizontal ground  heat exchange type556 for heating a
>> storage tank, the problem is  The
>> temperature of the  outlet source and The temperature of the outlet load
>> it's
>>  not acceptable
>> please find the attached program  in trnsys
>> thanks
>>
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