Consumer model in thermal liquid domain

Hello everyone,

I need your help with modeling a consumer in a thermal liquid domain/Simscape. I tried many approaches to model the consumer component but the results are not that correct. That's why I decided to ask for your help.

The model should contain the heat flow (Qcons) and a preset return temperature (Tret). The governing equation is : Qcons = mdot * cp * (Tsupp - Tret)

Any help is appreciated!