Prior studies of indirect water storage tanks that employ an immersed heat exchanger to discharge the stored energy identified two potential methods of improving the rate of energy extraction: (1) an internal baffle to increase the velocity across the heat exchanger and (2) a divided storage compartment to achieve thermal stratification. The relative benefits of the two options are compared and recommendations for implementation are provided based in part on measurements in a 350 l tank with a 10 m long, coiled tubular heat exchanger.
What is the Best Solution to Improve Thermal Performance of Storage Tanks With Immersed Heat Exchangers: Baffles or a Divided Tank?
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Wade, A. D., Davidson, J. H., and Haltiwanger, J. F. (July 15, 2009). "What is the Best Solution to Improve Thermal Performance of Storage Tanks With Immersed Heat Exchangers: Baffles or a Divided Tank?." ASME. J. Sol. Energy Eng. August 2009; 131(3): 034503. https://doi.org/10.1115/1.3142823
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