Abstract
In this study, palmitic acid (PA) and capric acid (CA) eutectic mixture was encapsulated in polystyrene (PS) capsules as new latent heat thermal energy storage (LHTES) material for building applications. Eutectic composition ratio of the mixture was determined experimentally. Microencapsulated eutectic mixtures (MEEMs) were prepared in homogenized emulsions in 3 different PS/(PA-CA) weight ratios. The synthesis reaction was found complete according to Fourier Transformed Infrared (FT-IR) Spectroscopy. The physical and physicochemical characteristics, thermal endurance limits and operating stability of MEEMs were investigated through differential scanning calorimetry, thermal gravimetry, and thermal conductivity, particle size distribution analysis, scanning electron microscopy, and polarized optical microscopy techniques. The onsets of melting of MEEMs were measured between 13.5 and 17.1°C as those of crystallization were between 16.9 and 17.9°C. The latent heats of melting of MEEMs were measured between 46.3 and 77.3J/g as those of crystallization were between −45.0 and −73.6J/g. As a result, a eutectic mixture of PA and CA was depicted for building heating cooling applications and successfully encapsulated in PS shell at different weight ratios.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
