Operation of pumps in a district heating system supplying a distant major industrial user

Water pump control methods are presented for the district heating system supplying an industrial heat user. The analysis aimed at determining optimum operating conditions for the system of pumps. The study focused on control parameters of the pumps installed at the heating substation delivering the heated water to the end-user. The chosen method consisted of throttling control of the pump using a control valve in the discharge header. The values of characteristic parameters and control characteristics of the pumps were used to evaluate the performance of the said pump system.