Question: When will the maximum energy storage capacity will be achieved? Each aluminium slab has 7 cm width and is at an initial temperature of 15

When will the maximum energy storage capacity will be achieved? Each

When will the maximum energy storage capacity will be achieved?

Each aluminium slab has 7 cm width and is at an initial temperature of 15 C. The gas temperature and the convection coefficient are assumed to have constant values of T = 550 C and h = 130 W m2K throughout the channels. Properties of the storage material: k= 231 W m-1 K-1 Cp = 1033 J kg K-1 p = 2702 kg m 3 When will the maximum energy storage capacity will be achieved? Select one or more alternatives: When the storage elements and the gas reach thermal equilibrium. After a very long time when too. When the temperature of the storage material reaches 600 C. Reset Maximum marks: 3

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