This work investigated the operation conditions of a rotary regenerator operating at low regeneration temperatures, which is widely used in solar desiccant air conditioning systems. A rigorous experimental rig that facilitates the measurement of axial, radial, and angular airflow temperature distribution is used. The measurements covered balanced flow at a wide range of rotational speeds (0–24 rpm), regeneration temperatures , and airflow rates (160–530 kg/h). The influences of those parameters on the rotary regenerator effectiveness are presented. The results revealed that the critical effectiveness occurs at 5 rpm (equivalent to ). This is lower than that for rotary regenerators operating at high regeneration temperatures and airflow rates. The results also concluded that the Kays and London correlation is sufficient for rotary regenerators operating at low regeneration temperatures. It predicted the experimental data with an average absolute percent deviation of 6.34.
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December 2009
Research Papers
Experimental Investigation on a Rotary Regenerator Operating at Low Temperatures
A. A. Rabah,
A. A. Rabah
Department of Chemical Engineering,
e-mail: rabahss@hotmail.com
University of Khartoum
, P.O. Box 321, Khartoum, Sudan
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A. Fekete,
A. Fekete
Institut für Thermodynamik, Helmut-Schmidt Universität,
Universität der Bundeswehr Hamburg
, Holstenhofweg 85, 22039 Hamburg, Germany
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S. Kabelac
S. Kabelac
Institut für Thermodynamik, Helmut-Schmidt Universität,
Universität der Bundeswehr Hamburg
, Holstenhofweg 85, 22039 Hamburg, Germany
Search for other works by this author on:
A. A. Rabah
Department of Chemical Engineering,
University of Khartoum
, P.O. Box 321, Khartoum, Sudane-mail: rabahss@hotmail.com
A. Fekete
Institut für Thermodynamik, Helmut-Schmidt Universität,
Universität der Bundeswehr Hamburg
, Holstenhofweg 85, 22039 Hamburg, Germany
S. Kabelac
Institut für Thermodynamik, Helmut-Schmidt Universität,
Universität der Bundeswehr Hamburg
, Holstenhofweg 85, 22039 Hamburg, GermanyJ. Thermal Sci. Eng. Appl. Dec 2009, 1(4): 041004 (9 pages)
Published Online: May 19, 2010
Article history
Received:
August 22, 2009
Revised:
February 24, 2010
Online:
May 19, 2010
Published:
May 19, 2010
Citation
Rabah, A. A., Fekete, A., and Kabelac, S. (May 19, 2010). "Experimental Investigation on a Rotary Regenerator Operating at Low Temperatures." ASME. J. Thermal Sci. Eng. Appl. December 2009; 1(4): 041004. https://doi.org/10.1115/1.4001543
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