Dynamic pump-adjusting liquid cooling system and its operating method

Abstract

A dynamic pump-adjusting liquid cooling system and its operating method are proposed. The system includes a cold plate, temperature sensors, liquid cooling pipelines, a pump, and a control device. The cold plate is attached to a heat-generating component, and the liquid cooling pipelines connect to the cooling loop. The temperature sensors measure the component and inlet water temperatures, while the pump drives the coolant flow. The control device connects to the sensors and the pump, storing an objective function, target temperature, heat loss coefficient, control parameter range, and the coolant’s heat capacity and thermal resistance. It also obtains the operating power of the heat-generating component. Based on the operating power, heat loss coefficient, heat capacity, component and inlet water temperatures, and thermal resistance, the control device calculates the expected temperature. It then executes a model predictive control process using the target temperature, expected temperature, objective function, and control parameter range to generate pump control parameters.

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