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Planning and Optimization of an On-site Energy Service Network for a Rural Region

Ahadi, Hassan | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48175 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Avami, Akram
  7. Abstract:
  8. Nowadays, classic energy supply systems are rapidly shifting towards more efficient, with less pollution, and more economic energy systems. In the meantime, the growing dependence of human activities on energy sources and the reduction of fossil fuels resources as the main source of energy supply at present time, has led to fundamental changes in the energy policy of communities. The use of distributed power generation systems utilizing renewable energy sources is one of the solutions that have been proposed in this regard. This research aims to develop a local energy supply network for a specific rural district using energy sources in place, so that the area is energy self-sufficient and independent of the conventional nationwide gas and electricity networks. In this project the concept of energy hub which uses a range of linked energy conversion and storage technologies, along with the resources available, creates the possibility of the integrated management of different energy demand carriers. To solve the problem, after the investigation of energy resources of the village and the demand in different sectors, appropriate conversion and storage regarding the energy resources of the village is proposed and the optimum capacity of the local power grid components is calculated by defining the economic optimization problem. To solve the problem, three different scenarios have been defined, the first and second scenarios aim only satisfying the demand of rural consumers and evaluating the impact on implementing storage on the results. In the third scenario, in addition to local customers’ demand, the possibility of selling renewable electricity to the grid is also considered. In the first scenario, about 10 percent of the village’s demand is satisfied by biomass resources which decreases to 9.6 percent in the second scenario when storage system is implemented. The use of electric and thermal storage has led to a 9.5 percent decrease in total expenditures and 3.8 percent decrease in fuel consumption in the second scenario compared to the first scenario. The results also confirm the need for the use of storage in off-grid systems. In the third scenario where the possibility of selling electricity to the network is considered, all the biomass resources of the village is consumed and the power generation equipment’s’ capacity has increased compared to the previous scenarios
  9. Keywords:
  10. Distributed Generation ; Renewable Energy Resources ; Energy Hub ; Self-Sufficent Energy Service Network

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