Journal article
Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System
Journal of water resources planning and management, Vol.143(10), 04017063
10/01/2017
DOI: 10.1061/(ASCE)WR.1943-5452.0000827
Abstract
Managing energy, water, and environmental priorities and constraints within a cascade hydropower system is a challenging multiobjective optimization effort that requires advanced modeling and forecasting tools. Within the mid-Columbia River system, there is currently a lack of specific solutions for predicting how coordinated operational decisions can mitigate the impacts of total dissolved gas (TDG) supersaturation while satisfying multiple additional policy and hydropower generation objectives. In this study, a reduced-order TDG uptake equation is developed that predicts tailrace TDG at seven hydropower facilities on the mid-Columbia River. The equation is incorporated into a general multiobjective river, reservoir, and hydropower optimization tool as a prioritized operating goal within a broader set of system-level objectives and constraints. A test case is presented to assess the response of TDG and hydropower generation when TDG supersaturation is optimized to remain under state water-quality standards. Satisfaction of TDG as an operating goal is highly dependent on whether constraints that limit TDG uptake are implemented at a higher priority than generation requests. According to the model, an opportunity exists to reduce TDG supersaturation and meet hydropower generation requirements by shifting spillway flows to different time periods. A coordinated effort between all project owners is required to implement systemwide optimized solutions that satisfy the operating policies of all stakeholders.
Details
- Title: Subtitle
- Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System
- Creators
- Adam Witt - Oak Ridge National LaboratoryTimothy Magee - University of Colorado BoulderKevin Stewart - Oak Ridge National LaboratoryBoualem Hadjerioua - Oak Ridge National LaboratoryDavid Neumann - University of Colorado BoulderEdith Zagona - University of Colorado BoulderMarcela Politano - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of water resources planning and management, Vol.143(10), 04017063
- DOI
- 10.1061/(ASCE)WR.1943-5452.0000827
- ISSN
- 0733-9496
- eISSN
- 1943-5452
- Language
- English
- Date published
- 10/01/2017
- Academic Unit
- IIHR--Hydroscience and Engineering
- Record Identifier
- 9984627219302771
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