CFD simulation of single-phase heat transfer in a rotor-stator spinning disc reactor

Kleiner, Julia; Münch, Benjamin; Rößler, Felix; Fernengel, Johanna; Habla, Florian; Hinrichsen, Olaf

doi:10.1016/j.cep.2018.07.010

Cited by 12 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Quan et al (2021) studied numerically the flow and heat transfer for a rotor-stator systems in a micro turbine engine The radius of rotor is only 4mm and the rotational speed can be 1×10 6 rpm. Likewise, much numerical works has also been conducted to provide reference for the design of rotor-stator disk cavity in the aircraft engine by Liao (2015), Kleiner (2018) and Ding (2012).…”

Section: Figure 1 Schematic Diagram Of Rotating Disk Cavity Systemmentioning

confidence: 99%

Experiment investigation on flow characteristics in a high speed rotor-stator cavity with axial air inflow

Chang¹,

Liu²,

Zha³

et al. 2022

Proceedings of Global Power &Amp; Propulsion Society

View full text Add to dashboard Cite

Targeting the flow characteristics for the aircraft engine turbine rotor-stator cavity，a high speed rotor-stator cavity with axial throughflow was investigated experimentally. The influences of rotation speed and inlet mass flow on pressure characteristics, windage heating and swirl characteristics were studied mainly at different rotational speed ranges from 0 to 9000rpm and different mass flow rate ranges from 0.05kg/s to 0.15kg/s. An experiment technique that relative temperature was obtained by measuring absolute parameters in stator was tested as well. The experiment results show that rotational speed and inlet mass flow are main parameters which determine flow characteristics in rotor-stator cavity. The effect of centrifugal boosting, windage heating, and swirl characteristics rise with the increase of rotational speed. The maximum value of centrifugal boosting is 1kpa, windage heating is 26K, and swirl ratio is 0.36. Increasing rotational speed will lead to the opposite effect. When air flow is in state of heat balance, relative total temperature and adiabatic temperature can be obtained by measuring absolute temperature and swirl ratio at same radius. The maximum deviation is below 1K.

show abstract

Section: Figure 1 Schematic Diagram Of Rotating Disk Cavity Systemmentioning

confidence: 99%

Experiment investigation on flow characteristics in a high speed rotor-stator cavity with axial air inflow

Chang¹,

Liu²,

Zha³

et al. 2022

Proceedings of Global Power &Amp; Propulsion Society

View full text Add to dashboard Cite

show abstract

“…This reactor type can generate a high degree of shear and turbulence in the reaction mixture from the rotation of a disk (∼130 mm in diameter) in a narrow rotor–stator gap, either using a thin film or in dispersed operation mode. As a consequence, high mass 34 − 40 and heat transfer 41 , 42 rates have been reported for the spinning disk reactor system, which in turn have been used to intensify a number of chemical reactions/processes. 43 − 47 An application of this reactor, adapted to enable homogeneous irradiation of the dispersed reaction mixture, has been recently published by our groups for an intensified photochemical gas–liquid process.…”

Section: Introductionmentioning

confidence: 99%

Scale-Up of a Heterogeneous Photocatalytic Degradation Using a Photochemical Rotor–Stator Spinning Disk Reactor

Chaudhuri

Zondag

Schuurmans

et al. 2022

Org. Process Res. Dev.

View full text Add to dashboard Cite

Many chemical reactions contain heterogeneous reagents, products, byproducts, or catalysts, making their transposition from batch to continuous-flow processing challenging. Herein, we report the use of a photochemical rotor–stator spinning disk reactor (pRS-SDR) that can handle and scale solid-containing photochemical reaction conditions in flow. Its ability to handle slurries was showcased for the TiO 2 -mediated aerobic photodegradation of aqueous methylene blue. The use of a fast rotating disk imposes high shear forces on the multiphase reaction mixture, ensuring its homogenization, increasing the mass transfer, and improving the irradiation profile of the reaction mixture. The pRS-SDR performance was also compared to other lab-scale reactors in terms of water treated per reactor volume and light power input.

show abstract

“…The rotor–stator spinning disc reactor is an example of an intensified reactor where high rates of heat and mass transfer can be achieved for multiphase systems. − This reactor relies on the generation of intense turbulence in a small gap (maximum of a few millimeters) between a rotating disc and a stationary wall for the intensification of heat and mass transfer rates. In Figure , an example of a single stage RS-SDR has been illustrated.…”

Section: Introductionmentioning

confidence: 99%

Transesterification of Triglycerides in a Rotor–Stator Spinning Disc Reactor: Scale-Up and Solid Handling

Chaudhuri

Temelli

Hop

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Fatty acid methyl esters are extensively used compounds in the industry, but they are perhaps most widely known for their application as biodiesel. In this study, we propose the rotor–stator spinning disc reactor (RS-SDR) as an intensified reactor for the production of fatty acid methyl esters. The RS-SDR relies on the generation of high shear forces in the small gap of a disc, rotating at high speeds, and a stationary wall, to improve on mass and heat transfer rates. Here, we have illustrated the benefits of mass transfer intensification for this reaction by performing the homogeneous base-catalyzed reaction in both a single-stage and a scaled-up multistage RS-SDR. A high level of productivity could be obtained in the multistage reactor (7.78 × 103 mol mR –3 min–1 at a conversion of 82%). Furthermore, we also performed a heterogeneous transesterification reaction with calcined sodium silicate as a slurry catalyst. We were able to obtain a productivity of 214 mol mR –3 min–1 in the RS-SDR (72% conversion, with a residence time of 8 min). In comparison, the batch heterogeneous system had 47% conversion during the same time period of operation. The high slurry concentrations of up to 20 wt % (based on oil weight fraction) did not lead to clogging or fouling in the reactor. These results demonstrate the potential of the RS-SDR for the transesterification reaction.

show abstract

CFD simulation of single-phase heat transfer in a rotor-stator spinning disc reactor

Cited by 12 publications

References 29 publications

Experiment investigation on flow characteristics in a high speed rotor-stator cavity with axial air inflow

Experiment investigation on flow characteristics in a high speed rotor-stator cavity with axial air inflow

Scale-Up of a Heterogeneous Photocatalytic Degradation Using a Photochemical Rotor–Stator Spinning Disk Reactor

Transesterification of Triglycerides in a Rotor–Stator Spinning Disc Reactor: Scale-Up and Solid Handling

Contact Info

Product

Resources

About