School of Engineering Department of Mechanical and Aerospace Engineering 181 Department of Mechanical and Aerospace Engineering Design of Energy Conversion Device from Heat to Electricity Supervisor: Sherry CHEN / MAE Student: CHUA Lok To / TEMG Course: UROP 1100, Summer This review explores pyroelectric energy conversion using highly reversible phase-transforming ferroelectrics, focusing on studies by Zhang et al. The 2019 paper critiques the Olsen cycle and proposes a battery-free design using a reference capacitor. It introduces a new figure of merit based on intrinsic material properties for better material selection. These properties include pyroelectric coefficient, polarisation jump, and latent heat. The 2021 study develops BaTiO₃-based materials doped with Ca, Zr, and Ce, confirming the merit’s accuracy through experiments. It also highlights λ₂ as a reliable indexer for reversibility. Literature data and predictions made by FerroAI are then compared and discrepancies are identified. 3D Printing with Lunar Soil: Pioneering Sustainable Lunar Surface Construction Supervisor: DUAN Molong / MAE Student: CHAN Pak Tsim / MECH Course: UROP 1100, Spring UROP 2100, Summer Within this research effort, the feasibility and efficiency of using lunar soil (regolith) to 3D print ecologically friendly structures for future lunar settlements are examined. A wide range of topics is addressed in a substantial effort. Therefore, the solar transmission system, utilizing optical fiber and a solar tracking system, is the main focus of this report. The optical fiber transmission technology is used in the solar transmission system due to its high efficiency and adaptability in transmitting sunlight to various locations. Furthermore, since the moon’s solar position is always shifting, the solar tracking system could optimize both the amount of solar energy absorbed and the effectiveness of the 3D printing system. 3D Printing with Lunar Soil: Pioneering Sustainable Lunar Surface Construction Supervisor: DUAN Molong / MAE Student: LAI Siu Kan / MECH Course: UROP 1100, Fall In-Situ Resource Utilization (ISRU) is necessary for constructing infrastructure for human habitation on the Moon or for other planetary exploration. As transporting material from Earth to the Moon is not costeffective for long-term exploration and development, additive manufacturing is suggested to utilize local lunar resources to construct a sustainable lunar settlement. In this report, microwave sintering and solar sintering technology on lunar regolith are being reviewed. The characteristics of the lunar regolith are studied. An optimized design of lunar regolith additive manufacturing with microwave heating or solar energy heat is initiated. The materials and design parameters are verifying currently, and the improvements will be carried out in the future.
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