U. Jamil Ur Rahman (Umair)

I am a PDEng student, working on the design of optimum flow conditions for spray drying of milk in a vortex chamber.

In 2011, I obtained my BSc degree in Chemical Engineering from University of the Punjab, Pakistan. In 2015, I completed my MSc degree in Chemical and Energy Engineering at the Otto von Guericke University, Germany. The master thesis topic was based on a numerical study of penetration depth for different fuels (methane, biogas, methanol) in a PFR (Parallel Flow Regenerative) shaft kiln.

Vortex Flow

Flow Patterns

Computational Fluid Dynamics

Drying

Air

Spray Drying

Trajectories

Driers (Materials)

Temperature Distribution

Water

Faculteit Engineering Technology (ET), Thermische Werktuigbouwkunde (THW)

My research is on the design and optimization of air flow and spray conditions for milk in a lab scale vortex chamber spray dryer. The high temperature and high-G acceleration in vortex chamber intensifies the heat, mass and momentum transfer. This leads to reduction in investment costs, energy savings, operational flexibility and product innovation.

This research focuses on developing a CFD model that provides insights to the complex multiphase flow inside the dryer. The model can then be used to design experiments and provide scale up rules.

Jamil Ur Rahman, U. (2018). Redesign of novel lab scale vortex chamber for drying of milk sprays Enschede

Jamil Ur Rahman, U., Baiazitov, I., Pozarlik, A. K., & Brem, G. (2018). CFD study of air flow patterns and droplet trajectories in a lab scale vortex chamber spray dryer. Paper presented at International Drying Symposium 2018, Valencia, Spain.

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