Counter-current parallel-plate moving bed heat exchanger: An analytical solution

Heat transfer model of a particle energy storage‐based moving packed bed heat exchanger

“…While to the contrary, convection only occurs in the axial x ‐direction in the solids. Isaza made the same assumption in his analytical works of counter‐current parallel‐plate MPBE before Through the adoption of a well‐established heat transfer coefficient, the second dimension is not necessary for SCO 2 channel .…”

“…Verification of this treatment has been made by Sullivan as mentioned before The properties of solids and dividing walls, such as bulk density ρ s , bulk specific heat C p,s , bulk voidage ε s , plate thermal conductivity k dw , are constant and effective, and will be given as known quantities . As for the SCO 2 , property variation due to temperature change and pressure drop, especially the specific heat will be captured.…”

“…Through the adoption of a well‐established heat transfer coefficient, the second dimension is not necessary for SCO 2 channel . In other words, the temperature of SCO 2 only varies with x . Heat transfer in the z ‐direction is assumed inappreciable Viscous energy dissipation is negligible …”

“…In other words, the temperature of SCO 2 only varies with x . Heat transfer in the z ‐direction is assumed inappreciable Viscous energy dissipation is negligible No heat source or sink are present in this analysis. …”

“…Isaza et al presented steady‐state energy equations for cocurrent and counter‐current parallel‐plate moving bed heat exchangers. Laplace transforms and expansion theorem are utilized to develop the analytical solutions of solids temperature, as well as fluid temperature . It was found that the temperature functions of counter‐current system strongly depend on the value of capacity ratio, and it is not the case in cocurrent system.…”