On 2022-06-16 16:19, Jacopo Valente via TRNSYS-users wrote:
Equa 3 is the input for the lumped capacitance and this input is the sum between the loads and the “top surface heat transfer” of radiant floor. However i don’t understand why my system doesn’t work: it seams the pump doesn’t exchange and the output temperature remains constant.
Without seeing your project my first guess is that you don't have anything turning the pumps on; the thermostat is only connected to the heat pump.
Beyond that, PLEASE add some pipes between the components and make sure you are operating at reasonable time steps - 5 minutes or so.
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