Skip to main content
SpringerLink
Log in

Distribution of local heat transfer coefficient values in the wall region of an agitated vessel

  • Original Paper
  • Published:
Chemical Papers Aims and scope Submit manuscript

Abstract

Experimentally found local heat transfer coefficients are analyzed as a function of the measuring point on the heat transfer surface area of the agitated vessel wall and of the impeller eccentricity. Eccentric Rushton turbine and A 315 impeller are considered. Local heat transfer coefficients were measured by means of the computer-aided electrochemical method. The measurements were performed in an agitated vessel with inner diameter 0.3 m, filled with liquid up to the height equal to the vessel diameter. The experiments were carried out within the turbulent regime of the Newtonian liquid flow in the agitated vessel. The results were compared with the data obtained for the agitated vessel equipped with an eccentrically located axial flow propeller or an HE 3 impeller. Experimental studies show that the distributions of the heat transfer coefficient values depend on the impeller eccentricity, impeller type and the direction of the liquid circulation in the agitated vessel.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Cudak, M., (2004). Heat and momentum transfer in a stirred tank with an eccentrically located impeller. PhD Thesis, Szczecin University of Technology, Szczecin.

    Google Scholar 

  • Cudak, M., & Karcz, J. (2006). Momentum transfer in an agitated vessel with off-centred impeller. Chemical Papers, 60, 375–380. DOI: 10.2478/s11696-006-0068-y.

    Article  CAS  Google Scholar 

  • Hall, J. F., Barigou, M., Simmons, M. J. H., & Stitt, E. H. (2005a). A PIV study of hydrodynamics in gas-liquid high throughput experimentation (HTE) reactors with eccentric impeller configurations. Chemical Engineering Science, 60, 6403–6413. DOI: 10.1016/j.ces.2005.03.044.

    Article  CAS  Google Scholar 

  • Hall, J. F., Barigou, M., Simmons, M. J. H., & Stitt, E. H. (2005b). Comparative study of different mixing strategies in small high-throughput experimentation reactors. Chemical Engineering Science, 60, 2355–2368. DOI: 10.1016/j.ces.2004.10.045.

    Article  CAS  Google Scholar 

  • Karcz, J., & Cudak, M. (2002). Efficiency of the heat transfer process in a jacketed agitated vessel equipped with an eccentrically located impeller. Chemical Papers, 56, 382–386.

    CAS  Google Scholar 

  • Karcz, J., & Cudak, M. (2003). Local momentum and heat transfer in a liquid and gas-solid-liquid systems mechanically stirred in a jacketed vessel. In Proceedings of the 11th European conference on mixing, 14–17 September 2003 (pp. 447–454), Bamberg, Germany: VDI-GVC.

    Google Scholar 

  • Karcz, J., & Cudak, M. (2004). Experimental analysis of the transport phenomena in a stirred tank with an eccentrically located impeller. Inżynieria Chemiczna i Procesowa, 25, 1067–1073.

    Google Scholar 

  • Karcz, J., & Cudak, M. (2006a). Analysis of transport processes near the wall region of a stirred tank with an eccentric impeller. Inżynieria Chemiczna i Procesowa, 27, 1469–1480.

    CAS  Google Scholar 

  • Karcz, J., & Cudak, M. (2006b). An effect of the type of an eccentrically located impeller on the efficiency of heat transfer process. In Proceedings of the 12th European conference on mixing, 27–30 June 2006 (pp. 727–734). Bologna, Italy.

  • Karcz, J., Cudak, M., & Szoplik, J. (2005). Stirring of a liquid in a stirred tank with an eccentrically located impeller. Chemical Engineering Science, 60, 2369–2380. DOI: 10.1016/j.ces.2004.11.018.

    Article  CAS  Google Scholar 

  • Medek, J., & Fort, I. (1985). Mixing in vessel with eccentrical mixer. In Proceedings of the 5th European conference on mixing, 10–12 June 1985 (pp. 263–271). Wuerzburg, Germany.

  • Montante, G., Bakker, A., Paglianti, A., & Magelli, F. (2006). Effect of the shaft eccentricity on the hydrodynamics of unbaffled stirred tanks. Chemical Engineering Science, 61, 2807–2814. DOI: 10.1016/j.ces.2005.09.021.

    Article  CAS  Google Scholar 

  • Novak, V., & Rieger, F. (1994). Mixing in unbaffled vessels. ICHEME Symposium Series, 136, 283–296.

    Google Scholar 

  • Stręk, F. (1981). Agitation and agitated vessels (in Polish). Warszawa: WNT.

    Google Scholar 

  • Stręk, F., & Karcz, J. (1999). Application of an electrochemical method for the studies of a mass transfer process at the vicinity of a wall of an agitated vessel. Inżynieria Chemiczna i Procesowa, 20, 3–22.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemical Engineering, Szczecin University of Technology, Al. Piastów 42, PL-71-065, Szczecin, Poland

    Magdalena Cudak & Joanna Karcz

Authors
  1. Magdalena Cudak
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Joanna Karcz
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Joanna Karcz.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Cudak, M., Karcz, J. Distribution of local heat transfer coefficient values in the wall region of an agitated vessel. Chem. Pap. 62, 92–99 (2008). https://doi.org/10.2478/s11696-007-0084-6

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.2478/s11696-007-0084-6

Keywords

Search

Navigation