Imperial College London

DrIvanStoianov

Faculty of EngineeringDepartment of Civil and Environmental Engineering

Senior Lecturer
 
 
 
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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{Pecci:2019:10.1061/(ASCE)WR.1943-5452.0001055,
author = {Pecci, F and Abraham, E and Stoianov, I},
doi = {10.1061/(ASCE)WR.1943-5452.0001055},
journal = {Journal of Water Resources Planning and Management},
title = {Model reduction and outer approximation for optimising the placement of control valves in complex water networks},
url = {http://dx.doi.org/10.1061/(ASCE)WR.1943-5452.0001055},
volume = {145},
year = {2019}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The optimal placement and operation of pressure control valves in water distribution networks is a challenging engineering problem. When formulated in a mathematical optimisation frame work, this problem results in a nonconvex mixed integer nonlinear program (MINLP), which has combinatorial computational complexity. As a result, the considered MINLP becomes particularly difficult to solve for large-scale looped operational networks. We extend and combine network model reduction techniques with the proposed optimisation framework in order to lower the computational burden and enable the optimal placement and operation of control valves in these complex water distribution networks. An outer approximation algorithm is used to solve the considered MINLPs on reduced hydraulic models. We demonstrate that the restriction of the considered optimisation problem on a reduced hydraulic model is not equivalent to solving the original larger MINLP, and its solution is therefore sub-optimal. Consequently, we investigate the trade-off between reducing computational complexity and the potential sub-optimality of the solutions that can be controlled with a parameter of the model reduction routine. The efficacy of the proposed method is evaluated using two large scale water distribution network models.
AU - Pecci,F
AU - Abraham,E
AU - Stoianov,I
DO - 10.1061/(ASCE)WR.1943-5452.0001055
PY - 2019///
SN - 0733-9496
TI - Model reduction and outer approximation for optimising the placement of control valves in complex water networks
T2 - Journal of Water Resources Planning and Management
UR - http://dx.doi.org/10.1061/(ASCE)WR.1943-5452.0001055
UR - http://hdl.handle.net/10044/1/65319
VL - 145
ER -