TY - JOUR
T1 - Efficient heat batteries for performance boosting in solar thermal cooking module
AU - Rekha, S. M.Santhi
AU - Karthikeyan, Vaithinathan
AU - Thu Thuy, Le Thi
AU - Binh, Quach An
AU - Techato, Kuaanan
AU - Kannan, Venkatramanan
AU - Roy, Vellaisamy A.L.
AU - Sukchai, Sukruedee
AU - Velmurugan, Karthikeyan
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/11/15
Y1 - 2021/11/15
N2 - Heat batteries show outstanding charging and discharging thermal energy capability with the latent heat of fusion (Hm) for solar thermal application. In this work, novel magnesium nitrate hexahydrate (MNH) based heat batteries are fabricated and tested for 1000 sequential thermal cycles. The MNH heat batteries demonstrate a high level of operational stability with the least corrosive rate. Real-time performance of the heat batteries was studied by incorporating them in the parabolic solar thermal cooking module. The developed MNH heat batteries based solar cooking module illustrates excellent heat retention capacity over 6 h after the sunshine. Temperature profiles under no load and full load conditions reveal the moderation and enhancement in the solar thermal cooking module's operational efficiencies. The solar cooking module's efficiency with the heat batteries reaches a maximum of 22.8% and 42.5%, under no load and full load conditions, respectively. Real-time cooking capacity with different edible materials under both outdoor and indoor environments proves the effective performance. Further, it is estimated that MNH heat batteries can be in full performance for a minimum of 2 years with maintenance-free and emission-free operations.
AB - Heat batteries show outstanding charging and discharging thermal energy capability with the latent heat of fusion (Hm) for solar thermal application. In this work, novel magnesium nitrate hexahydrate (MNH) based heat batteries are fabricated and tested for 1000 sequential thermal cycles. The MNH heat batteries demonstrate a high level of operational stability with the least corrosive rate. Real-time performance of the heat batteries was studied by incorporating them in the parabolic solar thermal cooking module. The developed MNH heat batteries based solar cooking module illustrates excellent heat retention capacity over 6 h after the sunshine. Temperature profiles under no load and full load conditions reveal the moderation and enhancement in the solar thermal cooking module's operational efficiencies. The solar cooking module's efficiency with the heat batteries reaches a maximum of 22.8% and 42.5%, under no load and full load conditions, respectively. Real-time cooking capacity with different edible materials under both outdoor and indoor environments proves the effective performance. Further, it is estimated that MNH heat batteries can be in full performance for a minimum of 2 years with maintenance-free and emission-free operations.
KW - Corrosion rate
KW - Heat battery
KW - Salt hydrate
KW - Solar cooking
KW - Thermal cycling
UR - http://www.scopus.com/inward/record.url?scp=85116485704&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2021.129223
DO - 10.1016/j.jclepro.2021.129223
M3 - Article
AN - SCOPUS:85116485704
SN - 0959-6526
VL - 324
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
M1 - 129223
ER -