TY - JOUR
T1 - Simulation framework for screening of molecular solar thermal systems in the context of a hybrid device
AU - Hansen, Mia Harring
AU - Olsen, Stine T.
AU - Sylvester-Hvid, Kristian O.
AU - Mikkelsen, Kurt V.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - We present an efficient approach for estimating the construction of molecular solar thermal systems in the context of hybrid solar thermal devices. Photochromic molecules can store thermal energy by structural changes, and the storage time depends on the chosen molecular system and temperature. The simulation framework can predict thermal energy storage rates, conversion percentages, and temperature increases. The model is based on both microscopic and macroscopic properties, which all have an impact on the energy storage efficiency. The microscopic parameters include the molecular storage energies, the quantum yield for the photoisomerization, the absorption properties for the photochromic molecule, and the lifetime of the metastable molecule, hence the possible storage time. The macroscopic parameters of the hybrid device include engineering specifications like the device dimensions, device material, the solar concentration factor, the flow rate of the fluid, and the start concentration of the photochromic molecule.
AB - We present an efficient approach for estimating the construction of molecular solar thermal systems in the context of hybrid solar thermal devices. Photochromic molecules can store thermal energy by structural changes, and the storage time depends on the chosen molecular system and temperature. The simulation framework can predict thermal energy storage rates, conversion percentages, and temperature increases. The model is based on both microscopic and macroscopic properties, which all have an impact on the energy storage efficiency. The microscopic parameters include the molecular storage energies, the quantum yield for the photoisomerization, the absorption properties for the photochromic molecule, and the lifetime of the metastable molecule, hence the possible storage time. The macroscopic parameters of the hybrid device include engineering specifications like the device dimensions, device material, the solar concentration factor, the flow rate of the fluid, and the start concentration of the photochromic molecule.
U2 - 10.1016/j.chemphys.2018.10.020
DO - 10.1016/j.chemphys.2018.10.020
M3 - Journal article
SN - 0301-0104
VL - 519
SP - 92
EP - 100
JO - Chemical Physics
JF - Chemical Physics
ER -