Abstract
The performance of a pilot-scale spray dryer is investigated experimentally and theoretically. The governing equations for flow field, heat and mass transfer, and particle trajectory are solved by applying computational fluid dynamics (CFD). The effects of inlet air temperature and initial particle diameter on the outlet humidity and particle residence time are examined. These parameters should be considered carefully in proper designing of spray dryers especially for the heat-sensitive products. The model is validated with an error of 5.5%.
References
1. SadripourM, RahimiA, HatamipourMS. Experimental study and CFD modeling of wall deposition in a spray dryer. Drying Technol2012;30:574–82.10.1080/07373937.2011.653613Suche in Google Scholar
2. ScalaF, D’AscenzoM, LanciaA. Modeling flue gas desulfurization by spray-dry absorption. Sep Purif Technol2004;34:143–53.10.1016/S1383-5866(03)00188-6Suche in Google Scholar
3. HuangLX, KumarK, MujumdarAS. A comparative study of a spray dryer with rotary disc atomizer and pressure nozzle using computational fluid dynamic simulations. Chem Eng Process: Process Intensification2006;45:461–70.10.1016/j.cep.2005.11.004Suche in Google Scholar
4. NijdamJJ, GuoB, FletcherDF, LangrishTA. Challenges of simulating droplet coalescence within a spray. Drying Technol2004;22:1463–88.10.1081/DRT-120038736Suche in Google Scholar
5. WalzelP. Influence of the spray method on product quality and morphology in spray drying. Chem Eng Technol2011;34:1039–48.10.1002/ceat.201100051Suche in Google Scholar
6. JamaleddineTJ, RayMB. Application of computational fluid dynamics for simulation of drying processes: a review. Drying Technol2010;28:120–54.10.1080/07373930903517458Suche in Google Scholar
7. JamaleddineTJ, RayMB. The drying of sludge in a cyclone dryer using computational fluid dynamics. Drying Technol2011;29:1365–77.10.1080/07373937.2011.567946Suche in Google Scholar
8. HuangL, KumarK, MujumdarAS. Simulation of a spray dryer fitted with a rotary disk atomizer using a three-dimensional computational fluid dynamic model. Drying Technol2004;22:1489–515.10.1081/DRT-120038737Suche in Google Scholar
9. WooMW, CheLM, DaudWR, MujumdarAS, ChenXD. Highly swirling transient flows in spray dryers and consequent effect on modeling of particle deposition. Chem Eng Res Des2012;90:336–45.10.1016/j.cherd.2011.06.019Suche in Google Scholar
10. WooMW, DaudWR, TasirinSM, TalibMZ. Controlling food powder deposition in spray dryers: wall surface energy manipulation as an alternative. J Food Eng2009;94:192–8.10.1016/j.jfoodeng.2008.10.001Suche in Google Scholar
11. RoustapourOR, HosseinalipourM, GhobadianB, MohagheghF, Maftoon AzadN. A proposed numerical-experimental method for drying kinetics in a spray dryer. J Food Eng2009;90:20–6.10.1016/j.jfoodeng.2008.05.031Suche in Google Scholar
12. StraatsmaJ, Van HouwelingenG, SteenbergenAE, De JongP. Spray drying of food products: 1. Simulation model. J Food Eng1999;42:67–72.10.1016/S0260-8774(99)00107-7Suche in Google Scholar
13. ChiouD, LangrishTA, BrahamR. The effect of temperature on the crystallinity of lactose powders produced by spray drying. J Food Eng2008;86:288–93.10.1016/j.jfoodeng.2007.10.005Suche in Google Scholar
14. LangrishTA. Multi-scale mathematical modelling of spray dryers. J Food Eng2009;93:218–28.10.1016/j.jfoodeng.2009.01.019Suche in Google Scholar
15. CheginiGR, KhazaeiJ, GhobadianB, GoudarziAM. Prediction of process and product parameters in an orange juice spray dryer using artificial neural networks. J Food Eng2008;84:534–43.10.1016/j.jfoodeng.2007.06.007Suche in Google Scholar
16. CroweC, SommerfeldM, TsujiY. Multiphase flows with droplets and particles. Boca Raton, FL: CRC Press, 1998.Suche in Google Scholar
17. MorsiSA, AlexanderAJ. An investigation of particle trajectories in two-phase flow systems. J Fluid Mech1972;55:193–208.10.1017/S0022112072001806Suche in Google Scholar
18. WooMW, DaudWR, MujumdarAS, WuZ, TalibMZ, TasirinSM. CFD evaluation of droplet drying models in a spray dryer fitted with a rotary atomizer. Drying Technol2008;26:1180–98.10.1080/07373930802306953Suche in Google Scholar
©2014 by Walter de Gruyter Berlin / Boston
Artikel in diesem Heft
- Frontmatter
- Application of Finite Element Method for Modeling of Multi-tube Fixed Bed Catalytic Reactors
- Using a Fractional Experimental Design for the Study of the Tensile Strength of a Film of Polyethylene Plastic Degradable
- CFD Modeling and Experimental Study of a Spray Dryer Performance
- Computational Antioxidant Capacity Simulation (CAOCS): A Novel Framework of Antioxidant Capacity Profiling
- WPC Soft: Prototype Simulation Software to Predict the Internal Changes During Hot Pressing of Wood Plastic Composites
- Genetic Algorithm Approach to Optimize Biodiesel Production by Ultrasonic System
- Classical and Neural Network–Based Approach of Model Predictive Control for Binary Continuous Distillation Column
- Modeling, Simulation, and Configuration Improvement of Horizontal Ammonia Synthesis Reactor
Artikel in diesem Heft
- Frontmatter
- Application of Finite Element Method for Modeling of Multi-tube Fixed Bed Catalytic Reactors
- Using a Fractional Experimental Design for the Study of the Tensile Strength of a Film of Polyethylene Plastic Degradable
- CFD Modeling and Experimental Study of a Spray Dryer Performance
- Computational Antioxidant Capacity Simulation (CAOCS): A Novel Framework of Antioxidant Capacity Profiling
- WPC Soft: Prototype Simulation Software to Predict the Internal Changes During Hot Pressing of Wood Plastic Composites
- Genetic Algorithm Approach to Optimize Biodiesel Production by Ultrasonic System
- Classical and Neural Network–Based Approach of Model Predictive Control for Binary Continuous Distillation Column
- Modeling, Simulation, and Configuration Improvement of Horizontal Ammonia Synthesis Reactor