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This work has investigated the influence of change in operation conditions on the performance of a Lithium Chloride (LiCl) wheel. A rigorous experimental rig that facilitates the measurement of temperature, pressure, pressure drop, relative humidity, airflow rate and rotational speed is used. The measurements covered balanced flow at a wide range of rotational speeds (0 - 9.8 rpm), regeneration temperatures (50-70°C), airflow rates (280-540 kg/h) and relative humidities (30-65%) at ambient condition. The influence of those operation conditions on the wheel sensible effectiveness and coefficient of performance (COP) are analyzed. The result revealed that a maximum COP occurs at a rotational speed of 0.2 rpm (12 rph). The results also concluded that Kays and London correlation is sufficient in the prediction of the effectiveness of the LiCl wheel. It represents the experimental data with an average absolute percent deviation (AAPD) of 2.16 and a maximum absolute percent deviation (APDmax) of about 6.00.
PAPER REVISED: 2011-05-09
PAPER ACCEPTED: 2011-06-07
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THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 4, PAGES [1137 - 1150]
  1. Shang, W., Besant, R. W. Measurement of the Pore Size Variation and Its Effect in Energy Wheel Performance, ASHRAE Transaction, 110 (2004), 1, pp. 410-421
  2. ***, ARI, ANSI/ARI Standard 1060-2001, Standard for Rating Air-to-Air Heat Exchangers for Energy Recovery Ventilation Equipment, Air-Conditioning and Refrigeration, Institute, Arlington, Va., USA, 2001
  3. ***, ANSI/ASHRAE, ANSI/ARI Standard 174-2009, Method of Test for Rating Desiccant-Based Dehumidification Equipment. American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc. Atlanta, Geo., USA, 30329
  4. Simonson, C. J., Besant, R. W. Energy Wheel Effectiveness: Part I – Development of Dimensionless Groups, International Journal of Heat and Mass Transfer, 42 (1999), 12, pp. 2161-2170
  5. Simonson, C. J., Besant, R.W. Energy Wheel Effectiveness: Part II – Correlations, International Journal of Heat and Mass Transfer, 42 (1999), 12, pp. 2171-2185.
  6. Simonson, C. J., Besant, R. W. Heat and Moisture Transfer in Desiccant Coated Rotary Energy Exchangers: Part I – Numerical Model, HVAC&R Research, 3 (1997), 4, pp. 325-350
  7. Simonson, C. J., Shang, W., Besant, R. W., Part Load Performance of Regenerative Heat Exchanger Effectiveness: Part II – Bypass Control and Correlation, ASHRAE Transaction, 106 (2000), 1, pp. 301-310
  8. Ge, T. S., Ziegler, F., Wang, R. Z., A Mathematical Model for Predicting the Performance of a Compound Desiccant Wheel (A Model for Compound Desiccant Wheel), Applied Thermal Engineering, 30 (2010), 8-9, pp.1005-1015
  9. Xuan, S., Radermacher, R., Transient Simulation for Desiccant and Enthalpy Wheels. International Sorption Heat Pump Conference, Denver, Col., USA, ISHPC-098-2005
  10. Zheng, W., Worek, W. M., Numerical Simulation of Combined Heat and Mass Transfer Processes in a Rotary Dehumidifier, Numerical Heat Transfer 23(A) (1993), 2, pp. 211-232
  11. Rabah, A. A., Mohamed, S. A., Latent Effectiveness of Desiccant Wheel: A Silica Gels-Water System, Journal of Industrial Research, 7 (2009), 6, pp. 12-22
  12. Rabah, A. A., Fekete, A., Kabelac, S., Experimental Investigation on a Regenerator Operating at Low Temperatures, ASME Journal of Thermal Sciences and Engineering Applications, 1 (2009), 4, pp. 041004-13
  13. ***, VDI, VDI-GVC, 2007, VDI-Waermeatlas, 10th ed., Springer-Verlag, Berlin
  14. Kays, W. M., London, A. L., Compact Heat Exchangers. McGraw-Hill, New York, USA, 1984

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