The Effect of Wind Velocity and Night Natural Ventilation on the Inside Air Temperature in Passive Cooling Ventilation in Arid Zones

Chapter
First Online:

Abstract

The effect of wind velocity and night natural ventilation in lowering the inside daytime air temperature in passive cooling in arid zones were investigated by numerical calculations and experimental means for different values of air change flow rate due to infiltrations and natural ventilation and different wind speed. The numerical calculations based on the inside outside air temperature, wind speed, cracks, and openings dimensions to determine the volume of air change per hour.

The experimental model was a test cell with the door facing north and the window in the opposite side facing south, the volume of the model was 9 m3. The calculated and measured results show that 1.8 volume per hour of air change flow rate and 2 m/s wind speed show a high concordance between calculated and measured inside air temperature and can lower the inside air temperature by 3–4 °C compared to non-ventilated test cell [1].

Keywords

Passive cooling Wind velocity Night ventilation Arid zone 
This is a preview of subscription content, log in to check access.

References

  1. 1.
    Bencheikh H, Bouchair A (2004) Passive cooling by evap-reflictive roof for hot dry climate. Renew Energy 29(11):1877–1886CrossRefGoogle Scholar
  2. 2.
    Santamouris M, Mihalakakou G, Argiriou A, Asimakopoulos D (1996) On the efficiency of night ventilation techniques for thermostatically controlled buildings. Solar Energy 56(6):479–483CrossRefGoogle Scholar
  3. 3.
    Santamouris M, Mihalakakou G, Asimakopoulos D (1997) On the coupling of thermostatically controlled buildings with ground and night ventilation passive dissipation techniques. Solar Energy 60(3–4)191–197CrossRefGoogle Scholar
  4. 4.
    Kolokotroni M, Webb B, Hayes S (1998) Summer cooling with night ventilation for office buildings in moderate climates. Energy Build 27:231–237CrossRefGoogle Scholar
  5. 5.
    Geros V, Santamouris M, Tsangrasoulis A, Guarracino G (1999) Experimental evaluation of night ventilation phenomena. Energy Build 29:141–154CrossRefGoogle Scholar
  6. 6.
    Givoni B (1998) Effectiveness of mass and night ventilation in lowering the indoor daytime temperatures. Energy Build 28:25–32CrossRefGoogle Scholar
  7. 7.
    Sherman MH, Grimsud DT (1980) Infiltration-pressurization correlation, simplified physical modeling. ASHRAE Trans 86(2):778Google Scholar
  8. 8.
    Walker IS, Wilson DJ (1998) Field validation of equations for stack and wind driven air infiltration calculations. Int J HVAC R Res 4(2):119–140CrossRefGoogle Scholar
  9. 9.
    Coblenz CW, Achenbach PR (1963) Field measurement of ten electrically heated houses. ASHRAE Trans 69:358–365Google Scholar
  10. 10.
    Malcolms S Orme (2001) Air infiltration and ventilation. ASHRAE HVAC 2001 fundamentals handbook chapter 26Google Scholar
  11. 11.
    Bencheikh H (2013) Full scale experimental studies of a passive cooling roof in hot arid areas. Int J Renew Energy Technol Res 2(6):170–180Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Laboratoire de génie civilUniversité Amar TelidjiLaghouatAlgeria

Personalised recommendations