[TRNSYS-users] Troubleshooting a fan coil system connected to a ground heat exchanger.

[thornton at tess-inc.com]

On 2022-10-15 08:35, dimitris soukoulis via TRNSYS-users wrote:

> In my attempt to simulate a simple heating system including the type
> 997 “ground heat exchanger” and the type 137 “fan coil unit”,
> I encountered some problems which I will explain below.
>  	* The ground heat exchanger didn’t seem to have any effect on the
> water’s temperature (inlet and outlet temps where plotted and found
> equal). The water exits the fan coil then enters the exchanger to
> reject or gain heat and then re-enters the coil to condition the air
> flowing through the coils. Shouldn’t I see some temperature change
> in that cycle of the water?

You don't have a pump to move fluid from the ground heat exchanger to 
the fan coil unit.  Like the real-life system, you need to circulate 
water to be able to move energy between the devices...

Jeff


----
Jeff Thornton
President
Thermal Energy System Specialists (TESS)
3 N. Pinckney Street - Suite 202
Madison WI 53703
(608) 274-2577
www.tess-inc.com