Abstract
Thermal energy storage using Phase Change Materials (PCM) is now widely applied to wall buildings. In general, PCM which is used for applications on building walls is organic PCM and has temperature range from 0℃ to 65oC. Beef tallow and coconut oil is a type of organic PCM known as Bio PCM needs to characterize by using the T-History Method. The T-History method is more accurate than Differential Scanning Calorimetry (DSC) and Differential Thermal Analysis (DTA). This study aimed to determine the thermal properties of beef tallow/coconut oil PCM using the T-History method. The beef tallow and coconut oil as bio PCM material was used in this study with the variation are respectively: 100%, 70+30%, 60+40%, and 50+50%. Tests are carried out using the T-History method. From the results of testing and analysis obtained supercooling temperature, melting temperature, specific heat, and latent heat for bio PCM beef tallow/coconut oil. The effect of adding coconut oil mixture to beef tallow caused a decrease in melting temperature and supercooling temperature, while the specific heat and latent heat of bio PCM of beef tallow/coconut oil ranged from 2.96-2.19 kJ/kg.℃ and 101.05-72.32 kJ/kg. The result obtained that this bio PCM material of cow beef tallow/coconut oil can apply, as additional material in wall building applications.
Highlights
We always feel uncomfortable conditions in the room if it is in the summer
One effort to overcome these problems is to manipulate these concretes by adding a Phase Change Material (PCM) which can withstand the heat
The purpose of this study was to determine the thermal properties of beef tallow/coconut oil bio PCM
Summary
One of the inconvenience factors is because the walls of a building that is designed cannot withstand heat from outside the walls of the building are designed mostly from concrete which has high heat conductivity [1]. One effort to overcome these problems is to manipulate these concretes by adding a Phase Change Material (PCM) which can withstand the heat. That the heat in the room is maintained [2]. PCM consists of organic, inorganic and eutectic which have their respective thermal properties [5]. It is necessary to choose PCM that is appropriate for its thermal properties. That the thermal properties can be applied to the walls of the building
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