Hot water store loading control process for laminar water storage involves driving second circulation pump on basis of parameter dependent on pump operating point

摘要

The hot water store (1) has a heat pump (2) and two circulation pumps (12, 22), each with a heat exchanger (11, 21), pumping water through two circuits (10, 20). The second circulation pump (22) is driven on the basis of parameter to produce a volume flow through the secondary circuit dependent on the service point of the heat pump operating point.