A new model for the drying of droplets containing suspended solids

A new model for the drying of droplets containing suspended solids after shell formation

“…Both examples presented focus on aspects of the model relating to shell formation and the subsequent drying behaviour. A thorough description of the population balance aspects of the model can be found in an earlier paper, [24]. [21]; and (b) simplified description of the crutcher mix used to model the system in this paper.…”

“…As demonstrated in Handscomb et al [24], the moment system describing the solid phase, (4), allows nucleation of new particles to be modelled. However, the presence of a considerable amount of crystallised sodium sulphate at the outset of drying in the current system makes nucleation of new crystals thermodynamically unlikely.…”

“…The model summarised in the previous section dealt with the simulation of droplets drying prior to the formation of a rigid shell, [24]. In this paper, the model is extended to simulate drying in the presence of a crust and, in conjunction with this, a centrally located bubble is introduced.…”

“…Following the convention established by Handscomb et al [24], the solvent, solute and solid will henceforth be labelled A, B and D respectively.…”

“…In Handscomb et al [24], a new model was presented for simulating the drying of slurry droplets consisting of an ideal binary solution containing suspended solids. These solids were handled using a population balance approach, enabling the modelling of particle nucleation and growth from the solution.…”