[TRNSYS-users] Variable heat pump question

[thornton at tess-inc.com]

On 2021-10-20 14:26, Erich Ryan via TRNSYS-users wrote:
> I am modeling a variable speed water to water heat pump using the
> multi dimensional interpolator, and I want to be able to change the
> setpoint of the heat pump. Currently, I am reading the return
> temperature and inlet flow rate, and inputting that into an equation
> to calculate the load necessary to have my output equal to my desired
> setpoint temperature. I am controlling the setpoint temperature based
> on an equation that defines time periods when it should be higher or
> lower.

Erich,

What are you reading from the interpolator model - and based on what 
variables?  For example, are you reading COP based on the entering fluid 
conditions?  Is the part load factor a variable?  Let us know and we can 
help you through your issue.

Jeff

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