Experimental investigations on the characteristics of melting processes of stearic acid in an annulus and its thermal conductivity enhancement by fins

Thermal conductivity and latent heat thermal energy storage characteristics of paraffin/expanded graphite composite as phase change material

“…In spite of these desirable properties of paraffins, the low thermal conductivity (0.21-0.24 W/m K) is its major drawback decreasing the rates of heat stored and released during melting and crystallization processes which in turn limits their utility areas [8,[12][13][14]. To overcome the low thermal conductivity problem of paraffins as PCMs, studies have been carried out with the purpose of developing LHTES systems with unfinned and finned configurations [16][17][18][19], dispersing high conductivity particles [20] and inserting a metal matrix into paraffin wax [21]. However, uses of such type heat transfer promoters considerably increase the weight and volume of LHTES systems.…”

Preparation and thermal properties of paraffin/porous silica ceramic composite

“…Lots of inorganic and organic PCM and their mixtures have been investigated as latent heat storage materials [4][5][6]. Among the investigated PCM, paraffin has been widely used for latent heat storage applications due to its large latent heat and proper thermal characteristics such as little or no super cooling, low vapor pressure, chemical stability and self-nucleating behavior [7][8][9][10][11][12][13][14][15]. Thus latent heat absorption phenomenon associated with melting of a suitable PCM could be also effectively used to delay or modify the temperature rise of the surface subjected to high thermal flux.…”

Effects of different multiple PCMs on the performance of a latent thermal energy storage system

“…In this heat storage unit, the PCM fills the annular shell space around the tube, while the heat transfer fluid flows within the tube and exchanges heat with the PCM. This type of LTES systems has been studied by several authors using numerical and experimental methods [12][13][14][15][16][17][18][19].…”