Re: [TRNSYS-users] problems when simulate example

[David BRADLEY <d.bradley@tess-inc.com>]

Ware,
 The example is intended to show you some ways of using Type42; it is not a very good example of a realistic device heating a tank. If you add the output of the controller to the online plot so that you can see the Type42 "heat pump" control signal you'll notice that the heat pump is on continuously through the length of the simulation; it does not have enough capacity to return the tank to its set point temperature. The fluctuations in tank temperature are the result of the varying water draw on the tank.
kind regards,
 David

On 04/12/2016 03:30, Ware wrote:

Sorry about the surubbed HTML attachment .

Here is my question:

When i simulate the project in:\trnsys17\examples\reading data files\performance_map_data, the case is the second one.

I find the outlet temperature of type4a ranges from 35℃ to 41℃,while the setpointtemp is 45±1℃，it seems the tempcontroller doesn'twork well, i have tried to reduce thetimestep smaller,but nothing changes…

Have anyone simulated the case?

thanks in advance.

Ware

BR

_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@lists.onebuilding.org
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

-- 
***************************
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@tess-inc.com

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