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An Investigation of Optimum Water and Energy usage in an Energy Hub Network

Hashemi, Omid | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48303 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Roshandel, Ramin; Rajabi Ghahnavieh, Abbas
  7. Abstract:
  8. The rapid increasment of energy carriers and investment expenses in recent years, has increased the costs of energy demand and attracted those interested in consume reduction and efficiency using modern cutting-edge technologies. This research intends to design a general framework for optimization and energy and water demanding management studies in a sample region, regarding the new concept, energy hub.Thus as the first step, the existing industries and technologies with their thermal and electrical demands is considered as the first hub and wastewater treatment plant with its other equipments and thermal and electrical demands is considered as the second hub. The main issue in the modeling is the wastewater treatment plant entrance and water extraction system from well, as the representatives of water and energy nexus in energy hub equations.The wastewater treatment plant has the ability to provide the required water of park, in addition the bio gas produced by the wastewater treatment plant is used as an energy carrier support for energy supplement. In the next step, investment expenses, energy and water supplement costs and the total mentioned expenses for the next 5 years, are considered as the main optimization indexes.The optimization by linear programming using GAMS software shows that the connection between electrical and thermal grid of the two hubs results in the total costs 3% reduction during the 5 years operation and 4.1 % the annual costs supplements.Also we have a 5.4 % reduction in capital cost in energy supplement, and a 8% reduction in the annual costs of energy supplement. The extreme low costs of energy and illimitable withdraw of wells results in the existing water of well totally getting finished The total high expenses of the water supplement by tanker in comparison to the wastewater treatment plant capital costs and its low energy costs results in the profitability and efficiency of construction wastewater treatment plant required for park
  9. Keywords:
  10. Energy Hub ; Combined Heat and Power (CHP)System ; Energy Demand ; Energy Consumption ; Water and Energy Nexus ; Industrial Demand

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