3: According to heat storage system, calculate the following

a) The heat stored in 80 m³ Liquid Sodium by heating it from 150°C to 450°C. The density

of Liquid Sodium is 750 kg/m³ and the specific heat of Liquid Sodium is 1260 J/kg°C.

b) The Molten Salt volume requires to store 600 MWh if the is stored in Molten Salt by

heating it from 150 °C to 450 °C. The density of Molten Salt is 1680 kg/m³ and the specific

heat of Molten Salt is 1560 J/kg°C.

c) Based on part a & b, which heat storage system has better energy density level.