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Economic and environmental evaluation of different operation alternatives to aquifer thermal energy storage in Tehran, Iran

Ghaebi, H ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.24200/sci.2017.4046
  3. Publisher: Sharif University of Technology , 2017
  4. Abstract:
  5. Aquifers are underground porous formations containing water. Confined aquifers are surrounded by impermeable layers on top and bottom, called cap rocks and bed rocks. A confined aquifer with a very low groundwater flow velocity was considered to meet the annual cooling and heating energy requirements of a residential building complex in Tehran, Iran. Three different alternatives of Aquifer Thermal Energy Storage (ATES) were employed to meet the heating/cooling demands of the buildings. These alternatives were using ATES for: Cooling alone, heating alone by coupling with at-plate solar collectors, and cooling and heating by coupling with a heat pump. For the economic evaluation of the alternatives, a life cycle cost analysis was employed. For the environmental evaluation, Ret Screen software was employed. For the considered 3 operational alternatives, using ATES for cooling alone had the minimum payback period time of 2.41 years and the life cycle cost of 16000 $. In the environmental perspective, among the 3 alternatives, coupling of ATES with heat pump for cooling and heating had the minimum CO2 generation, corresponding to 359 tons/year. © 2017 Sharif University of Technology
  6. Keywords:
  7. Aquifer thermal energy storage ; Economic evaluation ; Environmental evaluation ; Aquifers ; Cooling ; Cost benefit analysis ; Economic analysis ; Energy storage ; Flow velocity ; Groundwater ; Groundwater flow ; Heat pump systems ; Heat storage ; Heating ; Hydrogeology ; Investments ; Life cycle ; Thermal energy ; Confined aquifers ; Economic evaluations ; Life cycle cost analysis ; Operational alternatives ; Plate solar collectors ; Residential building ; Groundwater resources ; Alternative energy ; Confined aquifer ; Cost analysis ; Energy conservation ; Life cycle analysis ; Photovoltaic system ; Residential energy ; Software ; Thermal power ; Valuation ; Iran ; Tehran [Iran]
  8. Source: Scientia Iranica ; Volume 24, Issue 2 , 2017 , Pages 610-623 ; 10263098 (ISSN)
  9. URL: http://scientiairanica.sharif.edu/article_4046.html