OPTIMAL LOCATIONS OF BOOSTER STATIONS IN WATER DISTRIBUTION SYSTEMS
Disinfectant residual maintenance has been always a concern to the utilities. Booster disinfection is a strategy that is being applied to add disinfectants at strategic locations throughout a water distribution system. A designer needs information about the network for the location and operation of booster stations. This thesis describes the development and investigation of a method that would be able to estimate and identify, with some degree of accuracy, minimum location of booster stations that are practicable for real distribution networks. The model formulation is related to a general facility location problem, which uses a branch and bound solution procedure. The design objectives considered are (1) minimize the number of booster stations and (2) maximize the uniformity of the residual demand in the network. The random inputs to the model are set of potential booster locations and desired residual demand for a given system. The design method is applied to a real distribution network. Results illustrationg the tradeoffs between the objectives suggest that to maintain a higher and uniform residual demand in the network, more number of booster stations are required. For varied input set of potential booster stations, different solution sets of optimal booster locations can achieve the same residual demand. The designer has to consider the extent of residual coverage that each booster station attains and the amount of overlapping influences that takes place between the operation of the booster stations. These tradeoffs are an important factor in the network design unless the cost is of limited concern.
School:University of Cincinnati
School Location:USA - Ohio
Source Type:Master's Thesis
Keywords:water distribution systems booster disinfection optimal control of chlorine
Date of Publication:01/01/2001