基于流量不确定性的冷水泵组鲁棒配置方法研究
Robust capacity configuration method of chilled water pump group considering uncertainty of chilled water flow rate
摘要：
暖通空调系统设计要求冷水输送系数不低于限值。传统设计方法是根据确定的全年逐时冷水流量设计曲线配置冷水泵组,以保证其可达到输送系数限值。实际上,全年逐时冷水流量曲线具有不确定性。本文在定义最大可接受不确定性区域的基础上,提出了一种冷水泵组的鲁棒配置方法。以最大可接受不确定性区域的面积为冷水泵组配置的鲁棒性指标,通过对多种冷水泵组配置的鲁棒性指标进行评估,获得了鲁棒性最佳的冷水泵组配置。将提出的鲁棒配置方法应用于某工厂建筑冷水泵组的容量配置,结果表明,相比传统方法和现有鲁棒配置方法,该方法可获得鲁棒性更佳的容量配置。
Abstract：
The transport factor of chilled water is required to be not lower than a limit in heating, ventilation and air conditioning (HVAC) design. In the conventional design method, the capacity configuration of the chilled water pump group is optimized to reach the required limit according to a deterministic annual hourly chilled water flow rate design curve. Actually, the annual hourly chilled water flow rate curve is uncertain. In this paper, the maximum acceptable uncertainty region is defined. Based on the maximum acceptable uncertainty region, a robust capacity configuration method of the chilled water pump group is proposed. The area of the maximum acceptable uncertainty region is used as the robustness index of a capacity configuration. The most robust capacity configurations of the chilled water pump group can be obtained by the robustness evaluation of the alternative configurations. The robust method is validated by configuring the chilled water system of a factory building. The results show that the chilled water pump group capacity configuration by the proposed method is more robust than that by the conventional method and the current robust method.
Keywords:chilled water pump group; capacity configuration; robustness evaluation; annual hourly chilled water flow rate curve; uncertainty