TY - GEN
T1 - Liquid calcium chloride solar storage
T2 - ASME 2010 4th International Conference on Energy Sustainability, ES 2010
AU - Quinnell, Josh A.
AU - Davidson, Jane H.
AU - Burch, Jay
PY - 2010
Y1 - 2010
N2 - Aqueous calcium chloride has a number of potential advantages as a compact and long-term solar storage medium compared to sensibly heated water. The combination of sensible and chemical binding energy of the liquid desiccant provides higher energy densities and lower thermal losses, as well as a temperature lift during discharge via an absorption heat pump. Calcium chloride is an excellent choice among desiccant materials because it is relatively inexpensive, non-toxic, and environmentally safe. This paper provides an overview of its application for solar storage and presents a novel concept for storing the liquid desiccant in a single storage vessel. The storage system uses an internal heat exchanger to add and discharge thermal energy and to help manage the mass, momentum, and energy transfer in the tank. The feasibility of the proposed concept is demonstrated via a computational fluid dynamic study of heat and mass transfer in the system over a range of Rayleigh, Lewis, Prandtl, and buoyancy ratio numbers expected in practice.
AB - Aqueous calcium chloride has a number of potential advantages as a compact and long-term solar storage medium compared to sensibly heated water. The combination of sensible and chemical binding energy of the liquid desiccant provides higher energy densities and lower thermal losses, as well as a temperature lift during discharge via an absorption heat pump. Calcium chloride is an excellent choice among desiccant materials because it is relatively inexpensive, non-toxic, and environmentally safe. This paper provides an overview of its application for solar storage and presents a novel concept for storing the liquid desiccant in a single storage vessel. The storage system uses an internal heat exchanger to add and discharge thermal energy and to help manage the mass, momentum, and energy transfer in the tank. The feasibility of the proposed concept is demonstrated via a computational fluid dynamic study of heat and mass transfer in the system over a range of Rayleigh, Lewis, Prandtl, and buoyancy ratio numbers expected in practice.
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U2 - 10.1115/ES2010-90181
DO - 10.1115/ES2010-90181
M3 - Conference contribution
AN - SCOPUS:84860277407
SN - 9780791843949
T3 - ASME 2010 4th International Conference on Energy Sustainability, ES 2010
SP - 715
EP - 724
BT - ASME 2010 4th International Conference on Energy Sustainability, ES 2010
Y2 - 17 May 2010 through 22 May 2010
ER -