为了了解水质对配电系统水力容量的影响，C系数 （Hazen Williams管道粗糙度系数）测试、模型校准和 进行了评估，并从几个地点收集了额外的数据 在全国各地。在水力模型试验期间进行了管道粗糙度试验 进一步评估不同C值对配电系统影响的校准 液压系统。同时对水处理工艺和实践进行评估，以评估 它们对配电系统水力的影响。运行石灰软化的公用设施 例如，具有最小再碳化的系统显示出对低C值的敏感性 从而降低了配电系统的承载能力。 水质对配电系统水力的负面影响越来越严重 随着能源成本的提高，这一点变得越来越重要，因此，这是能源管理的一个关键部分 应仔细评估的公用事业运营。本文提供了有价值的数据 来自全国各地的配水系统，收集并分析了C值数据 根据水处理工艺进行评估。包括桌子。

To understand the impact of water quality on distribution system hydraulic capacity, C-factor (Hazen Williams Pipe Roughness Factor) testing, model calibrations and evaluations were conducted and additional data were gathered from several sites around the country. Pipe roughness testing was conducted during hydraulic model calibrations to further assess the impact of varying C-values on distribution system hydraulics. Water treatment processes and practices were evaluated in parallel to assess their impact on distribution system hydraulics. Utilities that operate lime softening systems, for example, with minimum re-carbonation showed susceptibility to low C-values and thus lower distribution system carrying capacity. The negative impact of water quality on distribution system hydraulics is becoming increasingly important with higher energy costs and therefore, this is a critical part of utility operations that should be carefully evaluated. This paper provides valuable data from water distribution systems across the country where C-value data was collected and evaluated against water treatment processes. Includes tables.