Imperial College London
Alternate

DrIvanStoianov

Faculty of Engineering, Department of Civil and Environmental Engineering

Reader in Water Systems Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6035ivan.stoianov Website

 
 
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Assistant

 

Miss Judith Barritt +44 (0)20 7594 5967

 
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Location

 

408Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Blocher:2021:10.1007/s11269-021-02988-z,
author = {Blocher, C and Pecci, F and Stoianov, I},
doi = {10.1007/s11269-021-02988-z},
journal = {Water Resources Management},
pages = {5105--5118},
title = {Prior assumptions for leak localisation in water distribution networks with uncertainties},
url = {http://dx.doi.org/10.1007/s11269-021-02988-z},
volume = {35},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Hydraulic model-based leak (burst) localisation in water distribution networks is a challenging problem due to a limited number of hydraulic measurements, a wide range of leak properties, and model and data uncertainties. In this study, prior assumptions are investigated to improve the leak localisation in the presence of uncertainties. For example, 2-regularisation relies on the assumption that the Euclidean norm of the leak coefficient vector should be minimised. This approach is compared with a method based on the sensitivity matrix, which assumes the existence of only a single leak. The results show that while the sensitivity matrix method often yields a better leak location estimate in single leak scenarios, the 2-regularisation successfully identifies a search area for pinpointing the accurate leak location. Furthermore, it is shown that the additional error introduced by a quadratic approximation of the Hazen-Williams formula for the solution of the localisation problem is negligible given the uncertainties in Hazen-Williams resistance coefficients in operational water network models.
AU  - Blocher,C
AU  - Pecci,F
AU  - Stoianov,I
DO  - 10.1007/s11269-021-02988-z
EP  - 5118
PY  - 2021///
SN  - 0920-4741
SP  - 5105
TI  - Prior assumptions for leak localisation in water distribution networks with uncertainties
T2  - Water Resources Management
UR  - http://dx.doi.org/10.1007/s11269-021-02988-z
UR  - https://link.springer.com/article/10.1007%2Fs11269-021-02988-z
UR  - http://hdl.handle.net/10044/1/92581
VL  - 35
ER  -
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