The Effect of Al_2 O_3 Addition on Solidification Process of Phase Change Material: A Case Study on Heating of Automobile Cabin in Cold Climate Conditions

Authors : Habib GÜRBÜZ, Himmet Emre AYTAÇ, Emre HAMAMCIOĞLU, Hüsameddin AKÇAY

Pages : 275-283

Doi:10.30939/ijastech..1128995

View : 17 | Download : 10

Publication Date : 2022-10-03

Article Type : Research Paper

Abstract :In this paper, an experimental investigation is revealed on the solidification process of the latent heat thermal energy storage insert ignore into journalissuearticles values(LHTES); system, in which the heat energy emitted into the atmosphere with the exhaust gases of ICE vehicles is stored by phase change material insert ignore into journalissuearticles values(PCM); enhanced with nanoparticles insert ignore into journalissuearticles values(Al2O3);. In the study using RT55 paraffin wax as the PCM, the interior heating process of a typical sedan automobile in cold climate conditions is used as the heat release medium for the LHTES system. Experimental studies carried out in real climatic conditions were repeated for pure paraffin insert ignore into journalissuearticles values(RT55); and five dif-ferent Al2O3 fractions insert ignore into journalissuearticles values(5 wt.%, 10 wt.%, 15 wt.%, 20 wt.%, and 25 wt.%);. Ex-periments are performed in an optical PCM container and are completed after 1200 seconds insert ignore into journalissuearticles values(20 minutes);. The heat energy stored in the PCM container is discharged to the automobile cabin via the closed-circuit liquid circulation system by the heating radiator system in the automobile cabin. The findings showed that the solidification process is improved considerably up to 10 wt.% Al2O3 fractions compared with pure paraffin RT55, and the temperature in the cabin could be increased by approximately 29%. In addition, the Al2O3 frac-tion increased by more than 10 wt.%, which has a negative effect on the im-provement in the solidification process, but higher solidification ability and in-cabinet temperature were obtained with all Al2O3 fractions compared to pure RT55.
Keywords : Exhausy waste heat recovery, LHTES, PCM, Nanoparticles addition, Heat discharge solidification, Automobile cabin interior heating