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