船舶空调系统仿真模型变工况研究

Research on Variable Working Conditions of Ship Air-Conditioning System Simulation Model

摘要: 本文以某大型邮轮为依托建立1:1的变风量空调系统试验台，旨在降低船舶空调能耗。首先，通过TRNSYS软件建立完整系统的仿真模型，并对其中多个重要环节进行定量分析以验证模型的准确性，最终经过对比分析，仿真模型的最大误差均保持在10%左右，具有良好的准确性。其次，利用已验证准确性的全系统仿真模型，从冷冻水供水温度对系统的影响进行分析，提出了根据实时冷负荷计算变风量空调系统管网末端设计风量的计算的方法。得出结论，当冷冻水供水温度设定值设定为9˚C时，水系统在保证制冷量的前提下，能耗更低。

Abstract: In this paper, a 1:1 variable air volume air conditioning system test bench is established based on a large cruise ship, aiming to reduce the energy consumption of ship air conditioning. Firstly, the simulation model of the complete system was established by TRNSYS software, and a number of important links were quantitatively analyzed to verify the accuracy of the model, and finally after comparative analysis, the maximum error of the simulation model was maintained at about 10%, which had good accuracy. Secondly, based on the system-wide simulation model with verified accuracy, the influence of chilled water supply temperature on the system is analyzed, and a method for calculating the design air volume at the end of the pipe network of the variable air volume air-conditioning system based on the real-time cooling load is proposed. It is concluded that when the chilled water supply temperature setting value is set at 9˚C, the energy consumption of the water system is lower under the premise of ensuring the cooling capacity.