International Scientific Journal

Authors of this Paper

External Links


The object of this research study was to investigate the maximum effectiveness values of the energy wheel by experimental tests conducted under extreme difference ambient air conditions parameters, different air volume flow rates, and energy wheel rotation speeds. Air temperature and humidity experimental tests were performed using a test facility that was developed and installed into the Indoor Air Quality and Thermal Comfort Laboratory of Budapest University of Technology and Economics. Our objective was to get the effectiveness values of sorption coated air-to-air energy recovery wheel for steady-state conditions under different ambient air (as supply air inlet) conditions. It was found that the sensible effectiveness increases by decreasing the volumetric flow rate through the wheel, and the optimum values of the effectiveness were given at the maximum wheel rotation speed based on the tests. As for the latent and total effectivenesses, their characteristics show an increasing trend by decreasing the air volume flow rate, ambient air temperature and relative humidity and increasing the wheel rotation speed.
PAPER REVISED: 2018-12-11
PAPER ACCEPTED: 2018-12-20
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 3, PAGES [2113 - 2124]
  1. Hossein, J., et al., A Comprehensive Review of Backfill Materials and Their Effects on Ground Heat Exchanger Performance, Sustainability, 10 (2018), 12, pp. 1-22.
  2. Jozsef, N., et al., Investment-savings method for energy-economic optimization of external wall thermal insulation thickness, Energy and Buildings, 86 (2014), pp. 268-274
  3. Rasheed, A., et al., Development and Optimization of a Building Energy Simulation Model to Study the Effect of Greenhouse Design Parameters, Energies, 11 (2018), 8, pp. 1 - 19
  4. Vanesa, V., et al., Effect of increasing temperatures on cooling systems. A case of study: European greenhouse sector, Climatic Change, 123 (2014), 2, pp. 175-187
  5. Seyed, A. G., Mazlan, A. W., 2018, Heat Transfer Enhancement and Pressure Drop for Fin-and-Tube Compact Heat exchangers with Delta Winglet-Type Vortex Generators, Facta Universitatis, Series: Mechanical Engineering, 16 (2018), 2, pp. 233 - 247
  6. Róbert, S., The Analysis of Two-Phase Condensation Heat Transfer Models Based on the Comparison of the Boundary Condition, Acta Polytechniquea Hungarica, 9 (2002), 6, pp. 167-180
  7. Đorđević, et al., Experimental investigation of the convective heat transfer in a spirally coiled corrugated tube with radiant heating, Facta Universitatis Series: Mechanical Engineering, 15 (2017), 3, pp. 495 - 506
  8. Ali, A., Mazyar, S., Finding a criterion for the pressure loss of energy recovery exchangers in HVAC systems from thermodynamic and economic points of view, Energy and Buildings, 166 (2018). pp. 426-437
  9. Sahdev, R.K., et al., Forced convection drying of indian groundnut: an experimental study, Facta Universitatis Series: Mechanical Engineering, 15 (2017), 3, pp. 467 - 477.
  10. Hammad, M., et al., Green building design solution for a kindergarten in Amman, Energy and Buildings, 76 (2014), pp. 524-537
  11. Yau Y., et al., Heat Pipe Heat Exchanger and its Potential to Energy Recovery in the Tropics. Thermal Science, 19 (2015), pp. 1685-1697
  12. Sanaye S., et al., Thermal-Economic Multi-Objective Optimization of Heat Pipe Heat Exchanger For Energy Recovery in HVAC Application Using Genetic Algorithm, Thermal Science, 18 (2014), pp. 375-391
  13. Papakostas K., et al., Energy and Economic Analysis of an Auditorium's Air Conditioning System With Heat Recovery in Various Climatic Zones, Thermal Science, 22 (2018), pp. 933-943
  14. ASHRAE, Principles of Heating, Ventilating, and Air Conditioning. American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Atlanta, USA, 2005.
  15. Simonson, C., et al., Heat and Moisture Transfer in Energy Wheels during Sorption, Condensation, and Frosting Conditions, Journal of heat transfer-transactions of ASME, 120 (1997), pp. 699
  16. Sparrow, E., et al., Heat and mass transfer characteristics of a rotating regenerative total energy wheel, International Journal of Heat and Mass Transfer, 50 (2007), pp. 1631-1636
  17. Jeong, J., et al., Practical thermal performance correlations for molecular sieve and silica gel loaded enthalpy wheels, Applied Thermal Engineering, 25 (2005), pp.719-740
  18. Harmati, N., et al., Energy Performance Modelling and Heat Recovery Unit Efficiency Assessment of an Office Building, Thermal Science, 19 (2015) pp. 865-880
  19. Angrisani, G., et al., Experimental analysis on the dehumidification and thermal performance of a desiccant wheel, Applied Energy, 92 (2012), pp. 563-572
  20. Hoval Enventus, Rotary heat exchangers for Heat Recovery in Ventilation Systems. 2018
  21. ASHRAE, HVAC Applications, Inc. Atlanta, GA, USA, 2011.
  22. ASHARE. ASHARE Handbook: HVAC Systems and Equipment, Inc. Atlanta, GA, USA, 2008
  23. Kline, S. J. et al., Describing the uncertainties in single sample experiments, Mechanical Engineering, 75 (1953), 1, pp. 3-8
  24. Holman, J. P., Analysis of experimental data, in: Experimental methods for engineers, McGraw-Hill, London, 2001, pp. 48-60

© 2023 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence