Application of Paraffin-Based Phase Change Materials for the Amelioration of Thermal Energy Storage in Hydronic Systems

Dua’a S. Malkawi (), Rabi Ibrahim Rabady, Mosa’b S. Malkawi and Said Jereis Al Rabadi
Additional contact information
Dua’a S. Malkawi: Engineering Department, Al-Balqa Applied University, P.O. Box 7041, Al-Salt 19117, Jordan
Rabi Ibrahim Rabady: Electrical Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
Mosa’b S. Malkawi: Mechanical Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
Said Jereis Al Rabadi: Chemical Engineering Department, Al-Balqa Applied University, P.O. Box 50, Al-Huson 21510, Jordan

Energies, 2022, vol. 16, issue 1, 1-17

Abstract: This study aims at investigating the improvement in the thermal performance of energy storage for a hydronic system when it is equipped with evacuated tubes integrated within a hot water tank. The PCM shell in the bottom section is thicker than at the top to maintain a uniform, minimal water temperature difference of 5 °C between the top and bottom sections of the hot water tank. The thermal performance of the system was analyzed in diverse months when the ambient temperature fluctuated. The results have revealed that the thermal performance in December, March, and June was 80%, 81%, and 84%, respectively, meaning that the thermal performance is optimal in warm weather. The results confirmed that the system had boosted the presence of hot water throughout the whole day, including the time of the sun’s absence, due to the release of stored PCM latent heat. The designed system solves the overheating problem and expands the availability of hot water through the cold weather. The system is characterized by lower heat losses because the average water temperature has decreased.

Keywords: phase change material; solar energy; thermal energy storage; hydronic solar system; paraffin wax (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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