Optimization of Control Scheme for Large Flow Seawater Cooling System Based on FloMaster-Simulink Co-Simulation

doi:10.16183/j.cnki.jsjtu.2021.023

Abstract

Abstract:

Large-scale marine equipment will overheat if it works for a long time and a cooling system is necessary to be established to ensure that the equipment works in a safe range of temperature. To meet the cooling requirements of a large-scale marine equipment, a model of seawater cooling system is established in FloMaster, and simulations under dynamic conditions are conducted. According to the temperature of the coolant (glycol solution) in the front or back of the room of the heat exchanger, the pump speed or valve opening is changed to realize automatic control of seawater flow. Three control schemes are proposed, and the control effects are evaluated by the response characteristics and operating characteristics of the system under variable working conditions using the FloMaster-Simulink co-simulation method. The results show that when the pump speed is controlled by both the open loop and closed loop, the best control effect and lower energy consumption can be achieved.

Key words: cooling system, FloMaster-Simulink, dynamic simulation, scheme optimization

CLC Number:

U664.58

WANG Ning, FU Yunpeng, LI Ting, LI Tie, YI Ping. Optimization of Control Scheme for Large Flow Seawater Cooling System Based on FloMaster-Simulink Co-Simulation[J]. Journal of Shanghai Jiao Tong University, 2022, 56(3): 379-385.

Figures/Tables 9

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参数/m	取值
管道内径	0.2
管道外径	0.25
壳结构内径	0.85
管道总长度	15.5