Thermal characteristics of mortar containing hexadecane/xGnP SSPCM and energy storage behaviors of envelopes integrated with enhanced heat storage composites for energy efficient buildings

Abstract Shape-stabilized phase change material (SSPCM) was prepared by impregnating hexadecane, as a PCM, into xGnP, as a supporting material. Fourier transform infrared spectroscopy confirmed that the heat storage characteristics of hexadecane could be integrated into the structure of xGnP for its physical bonding, without a change in its chemical properties. Differential scanning calorimeter analysis showed that the melting temperature range of the SSPCM was similar to that of pure hexadecane. Thermo gravimetric analysis of the hexadecane/xGnP SSPCM determined that the percentage of impregnated hexadecane into xGnP was 48.8% with 96.4 J/g of latent heat storage energy. In addition, mortar with the prepared SSPCM was investigated in terms of developing advanced building materials with thermal energy storage properties. The heating and cooling behavior test of the SSPCM mortar demonstrated the improvement of the thermal mass and inertia by the mortars containing the SSPCM. Consequently, the thermal behavior of the test buildings made of the hexadecane/xGnP SSPCM mortar was computationally investigated using EnergyPlus. The obtained measurements validated a reduction in temperature variations and an enhancement of thermal inertia, during the time periods examined.

[1]  T. Choong,et al.  A STUDY ON THERMAL CHARACTERISTICS OF PHASE CHANGE MATERIAL (PCM) IN GYPSUM BOARD FOR BUILDING APPLICATION , 2005 .

[2]  K. A. Antonopoulos,et al.  Experimental determination of the effective thermal capacity function and other thermal properties for various phase change materials using the thermal delay method , 2011 .

[3]  Byoungho Lee,et al.  Polymerization of aniline on bacterial cellulose and characterization of bacterial cellulose/polyaniline nanocomposite films , 2012 .

[4]  G. Ziskind,et al.  Numerical investigation of a PCM-based heat sink with internal fins , 2005 .

[5]  Ahmed Elgafy,et al.  Graphite foams infiltrated with phase change materials as alternative materials for space and terrestrial thermal energy storage applications , 2008 .

[6]  Jungki Seo,et al.  High thermal performance composite PCMs loading xGnP for application to building using radiant floor heating system , 2012 .

[7]  S. M. Hasnain.  Review on sustainable thermal energy storage technologies, Part I: heat storage materials and techniques , 1998 .

[8]  Yajuan Zhong,et al.  Heat transfer enhancement of paraffin wax using graphite foam for thermal energy storage , 2010 .

[9]  M. Gharebaghi,et al.  Enhancement of Heat Transfer in Latent Heat Storage Modules with Internal Fins , 2007 .

[10]  Jisoo Jeon,et al.  Preparation and evaluation of thermal enhanced silica fume by incorporating organic PCM, for application to concrete , 2013 .

[11]  Zhong Xin,et al.  Thermal properties of paraffin based composites containing multi-walled carbon nanotubes , 2009 .

[12]  Jungki Seo,et al.  Building materials thermal conductivity measurement and correlation with heat flow meter, laser flash analysis and TCi , 2012, Journal of Thermal Analysis and Calorimetry.

[13]  L. Drzal,et al.  High latent heat storage and high thermal conductive phase change materials using exfoliated graphite nanoplatelets , 2009 .

[14]  A. Elgafy,et al.  Effect of carbon nanofiber additives on thermal behavior of phase change materials , 2005 .

[15]  N. Lakshmi Narasimhan,et al.  Heat Transfer Enhancement Study of a LHTS Unit Containing Dispersed High Conductivity Particles , 2002 .

[16]  S. Kanev,et al.  Thermophysical properties of some paraffins applicable to thermal energy storage , 1992 .

[17]  Sumin Kim,et al.  The effect of types of maleic anhydride-grafted polypropylene (MAPP) on the interfacial adhesion properties of bio-flour-filled polypropylene composites , 2007 .

[18]  P. Wolkoff,et al.  Photocopiers and indoor air pollution , 1999 .

[19]  Mervyn Smyth,et al.  A comparison of heat transfer enhancement in a medium temperature thermal energy storage heat exchanger using fins , 2009 .

[20]  Huaqing Xie,et al.  Enhancing thermal conductivity of palmitic acid based phase change materials with carbon nanotubes as fillers , 2010 .