Abstract
The study of gas–liquid contacting devices like rotating packed bed (RPB) gained impetus not only due to their promising capacity for volume reduction up to 2–3 order in magnitude but also for process intensification among the participating fluids through the packing. However, the thermal transfer phenomenon involved between the interacting fluids flowing in counter-current direction, due to centrifugal acceleration inside the RPB, is hard for discernment from experimental perspective alone. For this reason, CFD simulation has been undertaken in the present work to explore the effects of water inlet temperature and flow rate on the pressure, velocity, and temperature distribution inside the RPB domain. This communication aims toward achieving rigorous understanding of the multi-physics involved in the thermal process intensification pertaining to the RPB using air–water system. The heat transfer rate results bearing futuristic vision for replacement of fills structure in giant and voluminous conventional cooling towers using compact and efficient rotating packed beds are finally discussed.
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Abbreviations
- k [J/kg]:
-
Turbulence kinetic energy
- P [N/m2]:
-
Pressure
- Gk [m2/s2]:
-
Generation of Turbulence kinetic energy due to mean velocity gradients
- Gb [m2/s2]:
-
Generation of Turbulence kinetic energy due to buoyancy
- U [m/s]:
-
Stream-wise velocity
- x [m]:
-
Cartesian axis direction
- α [m2/s]:
-
Thermal diffusivity
- ε [m2/s3]:
-
Turbulence dissipation rate
- ρ [kg/m3]:
-
Physical density
- τ [N/m2]:
-
Stress tensor
- μ [N.s/m2]:
-
Molecular viscosity
- b :
-
Buoyancy
- eff:
-
Effective expression
- i, j :
-
Component in Cartesian direction
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Saurabh, Murthy, D.S. (2021). Study of Effects of Water Inlet Temperature and Flow Rate on the Performance of Rotating Packed Bed. In: Bose, M., Modi, A. (eds) Proceedings of the 7th International Conference on Advances in Energy Research. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-15-5955-6_32
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