Research on Thermal Characteristics of High-Temperature Organic Phase Change Thermal Storage Materials
In high-energy-consuming sectors such as petrochemicals,there is a significant amount of waste heat that cannot be effectively utilized.Phase Change Materials(PCMs)can absorb or release a large amount of heat during phase transitions,offering advantages such as high heat storage density and good temperature stability.Currently,they are an effective method for addressing the problem of industrial waste heat recovery and utilization.This paper focuses on high-temperature organic eutectic phase change materials(with a phase change temperature of 186.3℃and a latent heat of 261.5 J·g-1).By adding high thermal conductivity particles,the thermal conductivity is improved from 0.5037 W·m-1·K⁻¹ to 0.5912 W·m-1·K⁻¹.These materials are applied in mobile heating devices for heat storage.The thermal response performance is enhanced by incorporating fin structures within the pipelines,allowing the heat storage process to be completed in just 1.5 to 2 hours.The application prospects of phase change materials in waste heat utilization are broad,effectively improving energy efficiency and possessing high practical value in the field of thermal energy recovery.
organic phase change materialsheat storagethermal propertiesphase change temperaturethermal energy recovery
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