TY - GEN
T1 - The impacts of demand variability on distribution system water quality
AU - Yang, X.
AU - Boccelli, D. L.
PY - 2010
Y1 - 2010
N2 - A stochastic water demand generator (PRPsym) and a distribution system network solver (EPANET) were linked to analyze the impact of demand variability on water quality simulations at three temporal demand aggregations (1-hour, 10-minute, and 1-minute). The water quality simulation was modeled as a short-duration conservative chemical injection. Results showed that decreasing temporal demand aggregation increased chemical concentration variability and, in some cases, changed the underlying transport characteristics. The results were also interpreted within a risk assessment framework assuming a toxic chemical species, which illustrated that the impacts of temporal demand aggregation were more evident for nodes where the underlying hydraulic path had been altered. These underlying changes in hydraulic transport were typically observed at the edges of the system rather than main trunk lines, which suggest that there may be portions of a distribution system where typical deterministic modeling assumptions may not adequately represent localized water quality conditions.
AB - A stochastic water demand generator (PRPsym) and a distribution system network solver (EPANET) were linked to analyze the impact of demand variability on water quality simulations at three temporal demand aggregations (1-hour, 10-minute, and 1-minute). The water quality simulation was modeled as a short-duration conservative chemical injection. Results showed that decreasing temporal demand aggregation increased chemical concentration variability and, in some cases, changed the underlying transport characteristics. The results were also interpreted within a risk assessment framework assuming a toxic chemical species, which illustrated that the impacts of temporal demand aggregation were more evident for nodes where the underlying hydraulic path had been altered. These underlying changes in hydraulic transport were typically observed at the edges of the system rather than main trunk lines, which suggest that there may be portions of a distribution system where typical deterministic modeling assumptions may not adequately represent localized water quality conditions.
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M3 - Conference contribution
AN - SCOPUS:84859905054
SN - 9780415548519
T3 - Integrating Water Systems - Proceedings of the 10th International on Computing and Control for the Water Industry, CCWI 2009
SP - 459
EP - 463
BT - Integrating Water Systems - Proceedings of the 10th International on Computing and Control for the Water Industry, CCWI 2009
T2 - 10th International Conference on Computing and Control for the Water Industry: Integrating Water Systems, CCWI 2009
Y2 - 1 September 2009 through 3 September 2009
ER -