Indoor Air Quality Measurement with the Installation of a Rooftop Turbine Ventilator

Abstract

The present paper presents a numerical analysis of the difference in comfort level inside a room of a residential building when roof top turbine ventilator is installed. This analysis simulates various comfort factors which includes the indoor air movement, room temperature, Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD). Various test cases of ventilator exhaust rate were examined. The results showed that general comfort satisfying international standards in building can be achieved. This study also presents a qualitative and quantitative study of indoor air temperature and overall indoor air flow pattern. A promising conclusion that can be drawn from this study is that wind driven ventilators can play an important role in the design of a cost effective and energy efficient ventilation system inside a building.

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J. Lien and N. Ahmed, "Indoor Air Quality Measurement with the Installation of a Rooftop Turbine Ventilator," Journal of Environmental Protection, Vol. 3 No. 11, 2012, pp. 1498-1508. doi: 10.4236/jep.2012.311166.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] B. O. Brooks and W. F. Davis, “Understanding Indoor Air Quality,” CRC Press Inc., Boca Raton, 1992.
[2] G. Pillgram Larsen, “300000 pa Skolebenken for a Bedre Innemijoet,” Statens Bygningstekniske Etat, Oslo, 1991.
[3] O. Seppanen and J. Palonen, “The Effects of Indoor Climate on National Economy in Finland in Billoon FIM,” FISIAW, SIY Rapportti 10, 1998.
[4] A. Pissasale and N. A. Ahmed, “Theoretical Calibration of a Five Hole Probe for Highly Three Dimensional Flow,” International Journal of Measurement Science and Technology, Vol. 13, 2002, pp. 1100-1107.
[5] A. Pissasale and N. A. Ahmed, “Examining the Effect of Flow Reversal on Seven-Hole Probe Measurements,” AIAA Journal, Vol. 41, No. 12, 2003, pp. 2460-2467. doi:10.2514/2.6845
[6] A. Pissasale and N. A. Ahmed, “A Novel Method of Extending the Calibration Range of Five Hole Probe for Highly Three Dimensional Flows,” Journal of Flow Measurement and Instrumentation, Vol. 13, No. 1-2, 2002, pp. 23-30.
[7] A. Pissasale and N. A. Ahmed, “Development of a Functional Relationship between Port Pressures and Flow Properties for the Calibration and Application of Multi Hole Probes to Highly Three-Dimensional Flows,” Experiments in Fluids, Vol. 36, No. 3, March, 2004, pp. 422-436. doi:10.1007/s00348-003-0740-8
[8] S. Shun and N. A. Ahmed, “Utilizing Wind and Solar Energy as Power Sources for a Hybrid Building Ventilation Device,” Renewable Energy, Vol. 33, No. 6, 2008, pp. 1392-1397. doi:10.1016/j.renene.2007.07.017
[9] S. Shun and N. A. Ahmed, “Airfoil Separation Control Using Multiple Orifice Air Jet Vortex Generators,” AIAA Journal of Aircraft, Vol. 48, No. 6, 2011, pp. 1994-2002.
[10] N. Findanis and N. A. Ahmed, “The Interaction of an Asymmetrical Localised Synthetic Jet on a Side Sup ported Sphere,” Journal of Fluids and Structures, Vol. 24, No. 7, 2008, pp. 1006-1020. doi:10.1016/j.jfluidstructs.2008.02.002
[11] N. Findanis and N. A. Ahmed, “Three-Dimensional Flow Reversal and Wake Characterisation of a Sphere Modified with Active Flow Control Using Synthetic Jet,” Advances and Applications in Fluid Mechanics, Vol. 9, No. 1, 2011, pp. 17-76.
[12] N. A. Ahmed, “Wind Driven Natural-Solar/Electric Hybrid Ventilators,” Wind Power, Section D: The Environ mental Issues, In-Tech Organization, Austria, 2010.
[13] J. Lien and N. A. Ahmed, “Wind Driven Ventilation for Enhanced Indoor Air Quality,” Chemistry, Emission, Control, Radiaoactive Pollution and Indoor Air Quality, In-Tech Organization, Austria, 2011.
[14] N. Findanis and N. A. Ahmed, “Wind Tunnel ‘Concept of Proof’ Investigations in the Development of Novel Fluid Mechanical Methodologies and Devices,” Wind Tunnels and Experimental Fluid Dynamics Research, In-Tech Organization, Austria, 2011.
[15] C. Wu and N. A. Ahmed, “Numerical Study of Transient Aircraft Cabin Flowfield with Unsteady Air Supply,” AIAA Journal of Aircraft, Vol. 48, No. 6, 2011, pp. 1994 2002.
[16] N. A. Ahmed, R. L. Elder, C. P. Foster and J. D. C. Jones, “A Novel 3D Laser Anemometer for Boundary Layer Studies,” 3rd International Symposium on Laser Anemometry, The Fluids Engineering Division, Vol. 55, pp. 175-178.
[17] N. A. Ahmed, R. L. Elder, C. P. Foster and J. D. C. Jones, “Miniature Laser Anemometer for 3D Measurements,” Journal of Measurement Science and Technology, Vol. 1, No. 3, 1990, pp. 272-276. doi:10.1088/0957-0233/1/3/012
[18] N. A. Ahmed and D. J. Wagner, “Vortex Shedding and Transition Frequencies Associated with Flow around a Circular Cylinder,” AIAA Journal, Vol. 41, No. 3, 2003, pp. 542-544. doi:10.2514/2.1979
[19] N. A. Ahmed, S. Hamid, R. L. Elder, C. P. Foster, J. D. C. Jones and R. Tatum, “Fibre Optic Laser Anemometry for Turbo Machinery Applications,” Optics and Lasers in Engineering, Vol. 15, No. 2-3, 1992, pp. 193-205.
[20] R. G. Simpson, N. A. Ahmed and R. D. Archer, “Near Field Study of Vortex Attenuation Using Wing Tip Blow ing,” The Aeronautical Journal, Vol. 102, 2002, pp. 117 200.
[21] R. G. Simpson, N. A. Ahmed and R. D. Archer, “Improvement of a Wing Performance Using Coanda Tip Jets,” AIAA Journal of Aircraft, Vol. 37, No. 1, 2000, pp. 183-184. doi:10.2514/2.2579
[22] A. Gatto, N. A. Ahmed and R. D. Archer, “Investigation of the Upstream End Effect of the Flow Characteristics of a Yawed Circular Cylinder,” The RAeS Aeronautical Journal, Vol. 104, No. 1033, 2000, pp 253-256.
[23] N. A. Ahmed and R. D. Archer, “Testing of a Highly Loaded Horizonatal Axis Wind Turbines Designed for Optimum Performance,” International Journal of Re newable Energy, Vol. 25, No. 4, 2002, pp. 613-618. doi:10.1016/S0960-1481(01)00079-9
[24] N. A. Ahmed and R. D. Archer, “Performance Improvement of a Bi-Plane with Endplates,” AIAA Journal of Aircraft, Vol. 38, No. 2, 2001, pp. 398-400. doi:10.2514/2.2777
[25] N. A. Ahmed and J. Goonaratne, “Lift Augmentation of a Low Aspect Ratio Thick Wing at a Very Low Angle of Incidence Operating in Ground Effect,” AIAA Journal of Aircraft, Vol. 39, No. 2, 2002, pp. 381-384.
[26] J. Yen and N. A. Ahmed, “Parametric Study of Dynamic Stall Flow Field with Synthetic Jet Actuation,” Journal of Fluids Engineering, Transactions of the ASME, Vol. 134, No. 7, 2012, Article ID: 071106.
[27] Leadership in Energy & Environmental Design (LEED), Update December 2009.
[28] S. J. Lien and N. A. Ahmed, “Effect of Inclined Roof on the Airflow Associated with a Wind Driven Turbine Ventilator,” Energy and Building, Vol. 43, No. 2-3, 2011, pp. 358-365.
[29] M. Bojic, F. Yik and T. Y. Lo, “Locating Air-Conditioners and Furniture inside Residential Flats to Obtain Good Thermal Comfort,” Energy and Buildings, Vol. 34, No. 7, 2002, pp. 745-751. doi:10.1016/S0378-7788(01)00143-8
[30] W. N. Hien, W. Liping, A. N. Chandra, A. R. Pandey and X. L. Wei, “Effects of Double Glazed Facade on Energy Consumption, Thermal Comfort and Condensation for a Typical Office Building in Singapore,” Energy and Buildings, Vol. 37, No. 6, 2005, pp. 563-572. doi:10.1016/j.enbuild.2004.08.004
[31] A. Stamou and I. Katsiris, “Verification and Application of a CFD Model for the Evaluation of Thermal Comfort in Office Spaces,” Building and Environment, Vol. 41, No. 9, 2006, pp. 1171-1181. doi:10.1016/j.buildenv.2005.06.029
[32] T. Karimipanah, H. B. Awbi, M. Sandberg and C. Blomqvist, “Investigation of Air Quality, Comfort Parameters and Effectiveness for Two Floorlevel Air Supply Systems in Classrooms,” Building and Environment, Vol. 42, No. 2, 2007, pp. 647-655. doi:10.1016/j.buildenv.2005.10.016
[33] S. J. Lien and N. A. Ahmed, “Numerical Simulation of Rooftop Ventilator Flow,” Building and Environment, Vol. 45, No. 8, 2012, pp. 1808-1815.
[34] Q. Chen, “Performance Prediction for Buildings: A Method Overview and Recent Applications,” Building and Environment, Vol. 44, No. 4, 2009, pp. 848-858. doi:10.1016/j.buildenv.2008.05.025
[35] “PHOENICS 3.2 Software Package,” CHAM, London, 1999.
[36] “AEA Technology,” CFX-5.5.1 User Guide, 8.19, Harwell, Didcot, Oxfordshire, OX110RA, 2002.
[37] “Fluent User’s Guide,” Version 6.3, Fluent Inc., Lebanon, 2004.
[38] Barbason and Reiter, “2010 ISO International Standard 7730. Moderate Thermal Environment: Determination of the PMV and PPD Indices and Specifications of the Condition for Thermal Comfort,” International Organization for Standardization, Geneva, 2005.
[39] ASHRAE, “ASHRAE Handbook Fundamentals,” American Society of Heating Refrigerating and Air Conditioning engineers, Atlanta, 1997.
[40] C. Lai, “Prototype Development of the Rooftop Turbine Ventilator Powered by Hybrid Wind and Photovoltaic Energy,” Energy & Buildings, Vol. 38, No. 3, 2006, pp. 174-180. doi:10.1016/j.enbuild.2005.06.004

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