Publication: Exploring thermal dynamics of polyaniline-modified paraffin wax phase change material with varied PANI loadings (1?4% wt.)
Date
2024
Authors
Janumala E.
Govindarajan M.
Reddi B.V.
Manickam M.
Venkatesan E.P.
Saleel C.A.
Alwetaishi M.
Shaik S.
Nur-E-Alam M.
Soudagar M.E.M.
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Science and Business Media Deutschland GmbH
Abstract
In this experimental study, we explore the potential enhancements in thermal conductivity while investigating alterations in latent heat and phase change temperature within Composite Phase Change Materials (PCMs). These composites consist of Paraffin Wax (PW) as the base material, incorporating dispersed conducting Polyaniline (PANI) powder in varying concentrations ranging from 1% wt. to 4% wt. The mass fractions of PANI added to PW include 1%, 2%, 3%, and 4%, and the composite PCMs are meticulously prepared through ultrasonication. Examining the surface morphology of Composite Phase Change Materials (PCMs) involved utilizing a Scanning Electron Microscope (SEM), while the determination of thermal conductivity employed a Heat Flow Meter. Additionally, latent heat and phase change temperatures were assessed through Differential Scanning Calorimetry (DSC). The obtained results indicate an augmentation in the thermal conductivity of the composites when compared to Paraffin Wax (PW). Specifically, thermal conductivity exhibited a 40% increase for 1% wt. of PANI, yet experienced a subsequent decline for the remaining weight percentages. Furthermore, the latent heat and phase change temperatures of the composites were observed to decrease in comparison to PW. These composite PCMs with enhanced thermal conductivity, achieved through the incorporation of Polyaniline in Paraffin Wax, are highly potential for several applications in energy storage systems, thermal regulation devices, and heat management technologies. ? The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
Description
Keywords
Differential scanning calorimetry , Latent heat , Morphology , Paraffins , Phase change materials , Surface morphology , Thermal conductivity , Base material , Composite phase change materials , Conducting polyaniline , Heat change , Heat flow meters , Mass-fraction , Phase change temperature , Scanning electrons , Thermal dynamics , Ultra-sonication , Scanning electron microscopy