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论文类型：期刊论文

发表时间：2018-01-01

发表刊物：URBAN WATER JOURNAL

收录刊物：SCIE

卷号：15

期号：8

页面范围：723-731

ISSN号：1573-062X

关键字：Foul sewer network; multi-objective optimization design; sewer conveyance capacity

摘要：This paper proposes a new performance index of foul sewer systems, i.e. sewer conveyance capacity (SCC) index, to quantify the surplus capacity for multi-objective optimization design problems. The use of the new SCC index is demonstrated using a hypothetical network and a real-world foul sewer network. Results obtained show clear trade-offs between SCC and the other two objectives considered, i.e., capital and operational costs and greenhouse gas emissions. The results show that the upstream sewers in the system often have a relatively large surplus capacity, while the sewer mains operate close to the design capacity. Moreover, SCC is compared with three common indicators at both individual sewer and system-wide levels. Strong correlations between SCC and other indicators are revealed, implying that SCC is a good representation of system performance and can provide a more comprehensive picture of the foul sewer system performance.