TY - JOUR
T1 - Revolutionizing the latent heat storage
T2 - Boosting discharge performance with innovative undulated phase change material containers in a vertical shell-and-tube system
AU - Sultan, Hakim S.
AU - Mohammed, Hayder I.
AU - Biswas, Nirmalendu
AU - Togun, Hussein
AU - Ibrahem, Raed Khalid
AU - Mahdi, Jasim M.
AU - Yaïci, Wahiba
AU - Keshmiri, Amir
AU - Talebizadehsardari, Pouyan
N1 - Publisher Copyright:
© 2024 Oxford University Press. All rights reserved.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - This paper examines the impact of various parameters, including frames, zigzag number, and enclosure shape, on the solidification process and thermal energy storage rate of a vertical phase change material (PCM) container. The study also assesses the effects of the flow rate of the heat transfer fluid as well as changing the materials of the PCM between RT35 and RT35HC. In addition, the study compares the framed versus unframed systems and, subsequently, the best case was tested with various zigzag pitch numbers before changing the zigzag-shaped structure to arc and reversed-arc. The findings are examined by contrasting the different scenarios’ liquid fractions, temperature distributions, solidification rates, and heat storage rates. The results show that the framed geometry is 66% faster to reach the target temperature compared with the unframed geometry and employing a zigzag enclosure in a PCM can significantly improve the solidification time and heat recovery rate. As the number of pitches in the zigzag enclosure increases, the improvement rate decreases but still improves the solidification time and heat recovery rate. The reversed-arc-shaped structure has the best performance compared with the other undulated surfaces. For the system with RT35HC, the discharge time is 55% higher compared with that of the system with RT35, while the discharge rate is 8.2% higher for the former during the first 3000 s of the discharging process.
AB - This paper examines the impact of various parameters, including frames, zigzag number, and enclosure shape, on the solidification process and thermal energy storage rate of a vertical phase change material (PCM) container. The study also assesses the effects of the flow rate of the heat transfer fluid as well as changing the materials of the PCM between RT35 and RT35HC. In addition, the study compares the framed versus unframed systems and, subsequently, the best case was tested with various zigzag pitch numbers before changing the zigzag-shaped structure to arc and reversed-arc. The findings are examined by contrasting the different scenarios’ liquid fractions, temperature distributions, solidification rates, and heat storage rates. The results show that the framed geometry is 66% faster to reach the target temperature compared with the unframed geometry and employing a zigzag enclosure in a PCM can significantly improve the solidification time and heat recovery rate. As the number of pitches in the zigzag enclosure increases, the improvement rate decreases but still improves the solidification time and heat recovery rate. The reversed-arc-shaped structure has the best performance compared with the other undulated surfaces. For the system with RT35HC, the discharge time is 55% higher compared with that of the system with RT35, while the discharge rate is 8.2% higher for the former during the first 3000 s of the discharging process.
KW - computational fluid dynamics
KW - discharge
KW - double-pipe heat exchanger
KW - framed structure
KW - phase change materials
KW - undulated surface
UR - http://www.scopus.com/inward/record.url?scp=85188990704&partnerID=8YFLogxK
U2 - 10.1093/jcde/qwae020
DO - 10.1093/jcde/qwae020
M3 - Article
AN - SCOPUS:85188990704
SN - 2288-4300
VL - 11
SP - 122
EP - 145
JO - Journal of Computational Design and Engineering
JF - Journal of Computational Design and Engineering
IS - 2
ER -