SOLAR THERMAL BATTERY DEVELOPMENT USING D-MANNITOL AS PHASE CHANGE MATERIALS

• Main Author: Aditya Wahyudi, Dimas
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/85961
• Institution: Institut Teknologi Bandung

The urgency of global warming calls for comprehensive decarbonization strategies to mitigate greenhouse gas emissions and combat the escalating climate crisis. As attempts to decarbonize the global energy system gain momentum, emphasis is shifting to one of the most important commodities, heat which leads to Thermal Energy Storage (TES) that provides clean flexibility energy and cost-efficient electrification. Thermal energy storage is a crucial component of various applications, including energy-efficient buildings, renewable energy integration, and waste heat recovery. Phase Change Materials (PCMs) offer a promising solution for efficient and compact thermal energy storage due to their high latent heat of fusion. However, the selection of suitable PCMs and their thermal optimization properties remains significant challenges. This research aims to investigate thermal energy storage using PCMs with a focus on the selection and characterization of PCMs that operate at temperatures around 150°C. D-Mannitol has been identified as a promising PCM candidate; however, its low thermal conductivity presents a drawback. To overcome these limitations, this study explores the use of Carbon black, Iron (III) Oxide, and Titanium Dioxide (TiO2) as additives to improve the thermal properties of Dmannitol. The characterization of this research will be determined by adding Carbon black at 1%wt and 0.5%wt, Iron (III) Oxide 1%wt and 0.5%wt, and Titanium Dioxide 1%wt and 0.5%wt and observing the thermal conductivity after characterization involving Diesel Simulator, Differential Scanning Calorimetry – Thermal Gravimetric Analysis (DSC-TGA), and UV-VIS Spectrophotometer for characteristics.