Abstract
Phase Change Material (PCM) is the most promising material as thermal energy storage nowadays. As thermal energy storage, examination on endurance of material for long-term use is necessary to be carried out. Therefore, thermal cycling test is performed to ensure thermal stability of PCM. This study have found a new method on thermal cycling test of PCM sample by using thermoelectric as heating and cooling element. RT 22 HC was used as PCM sample on this thermal cycling test. The new method had many advantages compared to some references of the same test. It just needed a small container for PCM sample. The thermoelectric could release heat to PCM sample and absorb heat from PCM sample uniformly, respectively, was called as heating and cooling process. Hence, thermoelectric had to be supported by a relay control device to change its polarity so it could heat and cool PCM sample alternately and automatically. On the other hand, the thermoelectric was cheap, easy to be found and available in markets. It can be concluded that new method of thermal cycling test by using thermoelectric as source of heating and cooling can be a new reference for performing thermal cycling test on PCM.
Highlights
Phase Change Materials (PCMs) are materials which are mostly tested as thermal energy storage nowadays [1]
Thermal engineering is needed in process of mixing nanoparticles into PCM without reducing heat capacity of PCM
Mixing nanoparticle with PCM has been conducted by many researchers to increase latent heat [8, 9] and heat capacity [10]
Summary
Phase Change Materials (PCMs) are materials which are mostly tested as thermal energy storage nowadays [1]. One of the advantages of PCM which have a high capacity in storing heat/cold because the contains the latent heat [2]. In order to increase its themal conductivity, some researcher are adding nanoparticles into PCM [4, 5]. The addition of nanoparticles can rise the rate of process in absorption and distribution of heat [6]. It can reduce the latent heat [7]. Thermal engineering is needed in process of mixing nanoparticles into PCM without reducing heat capacity of PCM. Mixing nanoparticle with PCM has been conducted by many researchers to increase latent heat [8, 9] and heat capacity [10]
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