Experimental Study on Gas-Solid Heat Transfer Characteristics for the Vertical Waste Heat Recovery Using the Inverse Problem Method

Table 1

Summary of previous correlations in the Nusselt number form for the gas-solid heat transfer in the particle packed bed.

Researcher	Heat transfer correlation	Equation
Wakao et al. [22]		(1)
Thodos et al. [23]		(2)
Gputa et al. [24]		(3)
Ramos et al. [25]		(4)
Handley and Heggs [26]		(5)
Ranz [27]		(6)
Singhal et al. [28]		(7)
Will et al. [29]		(8)