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Heat and Cooling Load Management through Minimizing the Heat Transfer and Utilizing the Storage Potential of Materials and Equipment Inside a Building

Pourebrahim, Marjan | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52877 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Saboohi, Yadollah
  7. Abstract:
  8. Buildings are responsible for 40% of total energy consumption worldwide. A significant portion of this energy contributes to building temperature control, and energy storage is an effective way to reduce energy consumption and to levelize the supply of heat load. A solution for reducing energy consumption in the building is to increase the thermal inertia of the building and to store energy using smart materials in the building components. Materials with phase change can stabilize the internal temperature of the building.In the present study, model is exmined with the help of modeling the thermal behavior of a room in Tehran in summer, using MATLAB software. The problem is solved by the implicit finite difference method. The results show that the presence of PCMs has a good effect on reducing the amplitude of room temperature fluctuations and decreases the room temperature peak by about 1.5 to 2 °C and improves thermal comfort conditions. The results also show that the southern, northern, western, and eastern walls perform best, respectively. Finally, a model has been developed that depicts the influence of parameters such as melting temperature, thickness and location of the PCM. Based on the climate and building geometry, type of phase change material, thickness, and type of wall material can be determined with the model. The minimum heat transfer from walls is estimated with the help of the model at which the required amount of cooling capacity is estimated
  9. Keywords:
  10. Phase Change Material (PCMs) ; Energy Storage ; Temperature Control ; Energy Consumption Reduction ; Energy Efficient Buildings

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