Engineering model for single-phase flow in a multi-stage rotor–stator spinning disc reactor

Beer, de Mm Michiel; Keurentjes, Jtf Jos; Schouten, JC Jaap; Schaaf, van der J John

doi:10.1016/j.cej.2013.12.052

Cited by 37 publications

(26 citation statements)

References 22 publications

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“…The simulation results reflected in Figs.7 and 8 are also consistent with the research carried out by De Beer et al (2014). The authors concluded that the radius where flow pattern changes from plug flow to ideally mixed flow decreases with increasing rotational Reynolds number and gap ratio, and increases with increasing superposed through flow rate.…”

Section: Simulation Results Of Hydrodynamics Inside Sdr Gapsupporting

confidence: 79%

“…The simulation of the flow pattern inside the SDR gap is consistent with the research conducted by De Beer et al (2014). They proposed and depicted an engineering model of the fluid flow patterns inside the inter-disk space of rotor-stator.…”

Section: Simulation Results Of Hydrodynamics Inside Sdr Gapsupporting

confidence: 62%

“…ANSYS©Fluent 13.0 is chosen to simulate and analyse fluid hydrodynamics in this reactor for the synthesis of biodiesel using convection-diffusion-reaction multicomponent transport model. Simulation results show similarity to the study carried out by De Beer et al (2014), and details are described below. There is an obvious occurrence of back flow near the stator from the outlet.…”

Section: Introductionsupporting

confidence: 49%

“…This can be demonstrated by the previous studies (Daily and Nece, 1960;Djaouiet al, 2001;de Beer et al, 2014). Hence, the diffusion flux of species i, Ji, which arises due to concentration gradients, can be written as…”

Section: Equations Solved In the Simulationmentioning

confidence: 62%

“…An engineering model of the fluid flow patterns inside the inter-disk space of rotor-stator was proposed, previously depicted by De Beer et al (2014). The flow through a rotor-stator cavity can be described as a combination of radial plug flow and ideally mixed region.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Numerical Analysis of The Effect of Hydrodynamics and Operating Conditions on Biodiesel Synthesis in a Rotor-Stator Spinning Disk Reactor

Wen¹,

Petera²

2017

Chemical and Process Engineering

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A rotor-stator spinning disk reactor for intensified biodiesel synthesis is described and numerically simulated in the present research. The reactor consists of two flat disks, located coaxially and parallel to each other with a gap ranging from 0.1 mm to 0.2 mm between the disks. The upper disk is located on a rotating shaft while the lower disk is stationary. The feed liquids, triglycerides (TG) and methanol are injected into the reactor from centres of rotating disk and stationary disk, respectively. Fluid hydrodynamics in the reactor for synthesis of biodiesel from TG and methanol in the presence of a sodium hydroxide catalyst are simulated, using convection-diffusion-reaction multicomponent transport model with the CFD software ANSYS©Fluent v. 13.0. Effect of operating conditions on TG conversion is particularly investigated. Simulation results indicate that there is occurrence of back flow close to the stator at the outlet zone. Small gap size and fast rotational speed generally help to intensify mixing among reagents, and consequently enhance TG conversion. However, increasing rotational speed of spinning disk leads to more backflow, which decreases TG conversion. Large flow rate of TG at inlet is not recommended as well because of the short mean residence time of reactants inside the reactor.

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Section: Simulation Results Of Hydrodynamics Inside Sdr Gapsupporting

confidence: 79%

Section: Simulation Results Of Hydrodynamics Inside Sdr Gapsupporting

confidence: 62%

Section: Introductionsupporting

confidence: 49%

Section: Equations Solved In the Simulationmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Numerical Analysis of The Effect of Hydrodynamics and Operating Conditions on Biodiesel Synthesis in a Rotor-Stator Spinning Disk Reactor

Wen¹,

Petera²

2017

Chemical and Process Engineering

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Process Intensification in Process Retrofitting and Revamping

Rao

2016

Chemical Process Retrofitting and Revamping

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Intensification of convective heat transfer in a stator–rotor–stator spinning disc reactor

et al. 2015

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A stator–rotor–stator spinning disc reactor is presented, which aims at intensification of convective heat‐transfer rates for chemical conversion processes. Single phase fluid‐rotor heat‐transfer coefficients hr are presented for rotor angular velocities ω=0−157 rad s−1 and volumetric throughflow rates ϕnormalv=15−20·10−6 m3s−1. The values of hr are independent of ϕnormalv and increase from 0.95 kWm−2K−1 at ω = 0 rad s−1 to 34 kWm−2K−1 at ω = 157 rad s−1. This is a factor 2–3 higher than values achievable in passively enhanced reactor‐heat exchangers, due to the 1–2 orders of magnitude larger specific energy input achievable in the stator–rotor–stator spinning disc reactor. Moreover, as hr is independent of ϕnormalv, the heat‐transfer rates are independent of residence time. Together with the high mass‐transfer rates reported for rotor–stator spinning disc reactors, this makes the stator–rotor–stator spinning disc reactor a promising tool to intensify heat‐transfer rates for highly exothermal chemical reactions. © 2015 American Institute of Chemical Engineers AIChE J, 61: 2307–2318, 2015

show abstract

Engineering model for single-phase flow in a multi-stage rotor–stator spinning disc reactor

Cited by 37 publications

References 22 publications

Numerical Analysis of The Effect of Hydrodynamics and Operating Conditions on Biodiesel Synthesis in a Rotor-Stator Spinning Disk Reactor

Numerical Analysis of The Effect of Hydrodynamics and Operating Conditions on Biodiesel Synthesis in a Rotor-Stator Spinning Disk Reactor

Process Intensification in Process Retrofitting and Revamping

Intensification of convective heat transfer in a stator–rotor–stator spinning disc reactor

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