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Title: Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System

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. In conclusion, a coordinated effort between all project owners is requiredmore » to implement systemwide optimized solutions that satisfy the operating policies of all stakeholders.« less

Authors:
ORCiD logo [1];  [2];  [1];  [1];  [2];  [2];  [3]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Colorado, Boulder, CO (United States)
  3. Univ. of Iowa, Iowa City, IA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376369
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Water Resources Planning and Management
Additional Journal Information:
Journal Volume: 143; Journal Issue: 10; Journal ID: ISSN 0733-9496
Publisher:
American Society of Civil Engineers (ASCE)
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; air entrainment; goal programming; hydropower; system optimization; successive linear programming; total dissolved gas

Citation Formats

Witt, Adam, Magee, Timothy, Stewart, Kevin, Hadjerioua, Boualem, Neumann, David, Zagona, Edith, and Politano, Marcela. Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System. United States: N. p., 2017. Web. doi:10.1061/(ASCE)WR.1943-5452.0000827.
Witt, Adam, Magee, Timothy, Stewart, Kevin, Hadjerioua, Boualem, Neumann, David, Zagona, Edith, & Politano, Marcela. Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System. United States. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000827
Witt, Adam, Magee, Timothy, Stewart, Kevin, Hadjerioua, Boualem, Neumann, David, Zagona, Edith, and Politano, Marcela. 2017. "Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System". United States. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000827. https://www.osti.gov/servlets/purl/1376369.
@article{osti_1376369,
title = {Development and Implementation of an Optimization Model for Hydropower and Total Dissolved Gas in the Mid-Columbia River System},
author = {Witt, Adam and Magee, Timothy and Stewart, Kevin and Hadjerioua, Boualem and Neumann, David and Zagona, Edith and Politano, Marcela},
abstractNote = {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. In conclusion, a coordinated effort between all project owners is required to implement systemwide optimized solutions that satisfy the operating policies of all stakeholders.},
doi = {10.1061/(ASCE)WR.1943-5452.0000827},
url = {https://www.osti.gov/biblio/1376369}, journal = {Journal of Water Resources Planning and Management},
issn = {0733-9496},
number = 10,
volume = 143,
place = {United States},
year = {2017},
month = {8}
}

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Works referenced in this record:

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  • Turan, Cagri; Carrica, Pablo M.; Politano, Marcela S.
  • World Environmental and Water Resources Congress 2006, World Environmental and Water Resource Congress 2006
  • https://doi.org/10.1061/40856(200)187

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Works referencing / citing this record:

Effect of Total Dissolved Gas Supersaturation on the Survival of Bighead Carp (Hypophthalmichthys Nobilis)
journal, January 2020


The Tolerance Characteristics of Resident Fish in the Upper Yangtze River under Varying Gas Supersaturation
journal, June 2019