New design equations for liquid/solid fluidized bed heat exchangers

Modification of heat transfer correlations in a liquid–solid fluidized bed heat exchanger with cylindrical particles in aggregative fluidization

“…Modifying the correlations of Kollbach resulted in the lowest percentage of average error from among the five modified correlations and the correlation provided by Aghajani et al [24]. …”

“…To amplify the improvement of prediction by the modified correlations, heat transfer coefficients for experimental data were calculated using the below correlation proposed by Aghajani et al [24] based on experiments with cylindrical particles in particulate and aggregate fluidization. These results are also shown in Figs.…”

Modeling ice removal in fluidized‐bed freeze concentration of apple juice

“…12 The fluidized particles collide repeatedly with the walls and the faster the movement the greater the heat transfer coefficient. 13 It has also been noticed that once fluidization turns into aggregate mode, changing particle size does not affect heat-transfer coefficient significantly. Whereas, particle size does have a considerable effect on heat transfer coefficient in particulate mode of fluidization.…”

Effect of Flow Directions on Multiphase Flow Boiling Heat Transfer Enhanced by Suspending Particles in a Circulating Evaporation System

“…It has a significant effect on equipment performance, thereby increasing projected overhead and maintenance costs [1][2][3][4][5]. As a promising alternative to the conventional fouling control technology, circulating fluidized bed heat exchanger can reduce investment and maintenance costs [6] and has been used for a wide range of industrial processes, such as catalytic cracking [7], paper making [8], desalination [9,10], wastewater evaporation [6,11], mitigation of ice crystallization [12], and pharmaceuticals [13]. Numerous researchers have made extensive investigation on the heat transfer and hydrodynamic performance of circulating fluidized bed heat exchanger [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”