Loading...

Design and Optimization of A Combined Photovoltaic and Geothermal System with a Compressed Air Energy Storage System to Supply Electrical and Thermal Energy in a Building

Emami Razavi, Nadiyeh | 2024

0 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57296 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Saeedi, Mohammad Hassan
  7. Abstract:
  8. Given the increasing concerns about climate change and the depletion of fossil fuel resources, the use of renewable energy as a sustainable and environmentally friendly solution has gained significant importance. This study examines a building that utilizes solar and geothermal energy to meet its heating and cooling needs. The system is analyzed from energy, exergy, and economic perspectives. Initial system design results showed that chilled water at 7°C and hot water at 59.13°C are produced. Among the three types of collectors examined, the thermal photovoltaic collector was selected for its simultaneous electricity and heat production and optimal efficiency for combination with an absorption chiller, while the parabolic trough collector was chosen for the heat storage section. Subsection analysis revealed that the parabolic trough collector and oil had the highest exergy destruction at 32.35%, followed by the absorption chiller and thermal photovoltaic cell at 23.47%, and the organic Rankine cycle at 16.14%. Additionally, the analysis of various parameters showed that the maximum air storage pressure, solar radiation, air mass flow rate, and parabolic collector area have a direct relationship with efficiency and cost, while the pressure drop in the pressure-reducing valve has an inverse relationship with efficiency. The final results indicated that a pressure reduction of 39.47% in the valve, a pressure of 896.6 kPa as the maximum storage source pressure, and an air mass flow rate of 0.074 kg/s create optimal conditions. The overall system cost decreased by 7.78% to 6.5 dollars per hour, while the total system efficiency changes were less than 1%, reaching 41%
  9. Keywords:
  10. Renewable Energy Resources ; Photovoltaic Panels ; Geothermal Energy ; Energy Storage ; Compressed Air Energy Storage (CAES)

 Digital Object List

 Bookmark

No TOC