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Developing an integrated model for allocating resources and assessing technologies based on the watergy optimal point (water-energy nexus), case study: a greenhouse

Hosseinnejad, A ; Sharif University of Technology | 2023

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  1. Type of Document: Article
  2. DOI: 10.13044/j.sdewes.d10.0416
  3. Publisher: International Centre for Sustainable Development of Energy, Water and Environment Systems SDEWES , 2023
  4. Abstract:
  5. Water-energy nexus approach analyses water and energy interactions to provide sustainable usage of resources. This study incorporates a comprehensive bottom-up optimization model to assess the combination of technologies based on the water-energy nexus (watergy) optimal point. The watergy reference system is introduced according to six principles of the watergy system to achieve this goal. In this study, a new method is developed by adding an integration layer to the optimizing model with the minimum total cost objective function. In this layer, the demands for water and energy, for supplying the water and energy services, are calculated endogenously. A sensitivity analysis is performed by presenting six scenarios for a greenhouse case study. Results indicate that the drainage recycling, combined heat and power, and photovoltaics were chosen at the watergy optimal point. Compared to the base case scenario, the maximum achievable reduction in the total cost of production is 31% in the most cost-effective scenario. Also, among the modelled scenarios, the optimal combination of technologies could reduce the use of water, electricity, and fertilizer by 18%, 31%, and 25%, respectively. © 2023, International Centre for Sustainable Development of Energy, Water and Environment Systems SDEWES. All rights reserved
  6. Keywords:
  7. Integrated model ; Technology assessment ; Water-energy nexus ; Watergy reference system ; Watergy services
  8. Source: Journal of Sustainable Development of Energy, Water and Environment Systems ; Volume 11, Issue 1 , 2023 ; 18489257 (ISSN)
  9. URL: http://www.sdewes.org/jsdewes/pid10.0416