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Simulation of Flow around Building for Using Small wind Turbine in Urban Areas

Sharifi, Pooria | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47560 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Boroushaki, Mehrdad; Avami, Akram
  7. Abstract:
  8. Wind is one of the clean energies available in the world which its damage to the environment is less than other renewable resources. One of technologies of generating energy from wind is the small turbines installed in city area. However, installing these turbines in cities may encounter with problems such as low speed of wind and high turbulence in the air causing aero-dynamic noise. If the turbines are installed in a bad place in cities, their electricity generation might be zero. Among important parameters that affect the performance of the turbines installed in the roof is the formation of the building, the buildings around, and the location of wind turbine. If the buildings’ arrangement changes, the air flow around the wind turbine will be affected. In this project, Ekbatan complex (town) in western part of Tehran has been considered. For simulations, the nearest station (to Ekbatan town) wind-rose, Mehrabad Airport, has been used which the data of this wind-rose is from since 63 years. The goal of this project is to simulate air flow around Ekbatan’s buildings in order to installing small wind turbines; this way, wind energy in the roof can be calculated. For location, we need to simulate Computational Fluid Dynamics based on urban area topologies, so that the air flows around the buildings can be simulated. At last, the simulations in 8 main directions of the wind blow for three phases of Ekbatan town are provided, separately. The speed and turbulence intensity are two main parameters in location which are defined from the roofs of Ekbatan town in different heights. Wind power density is also provided in the primary estimates. According to the results, Ekbatan town is likely to have a reasonable potential for utilizing the wind energy. Phase 2 is the most likely one in the three phases of Ekbatan town; according to the prevailing wind direction, it is not an unexpected result. Therefore, more turbines should be installed in this phase
  9. Keywords:
  10. Wind Energy ; Urban Areas ; Computational Fluid Dynamics (CFD) ; Potentialeometry ; Small Wind Turbines ; Ekbatan Town

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