ASSESSING THE IMPACT OF PASSIVE COOLING ON THERMAL COMFORT IN LIG HOUSE USING CFD

It has been observed that existing low income group (LIG) houses are inefficient to provide thermal comfort in Raipur, Chhattisgarh. This makes more dependency on cooling equipment to achieve thermal comfort which leads to more energy consumption. The objective of the present work is to investigate and enhance the thermal comfort of LIG house by passive cooling techniques. Different cases considered in the present study are, the effect of windows, green roof and green walls and shaded wall etc. on the indoor temperature of LIG house on May 20, 2016. Results concluded that at summer during the early morning, when the outside temperature is lower than the inside temperature, it reduces the room temperature but insufficient to provide thermal comfort. It is also concluded that providing green roof along with green walls enhance the indoor temperature of the house.

___

  • [1] Mendes N., Oliveira G. H. C., Araújo H. X. D. (2001). Building thermal performance analysis by using matlab/Simulink, Seventh International IBPSA Conference.
  • [2] Evola G., & Popov V. (2006). Computational analysis of wind driven natural ventilation in buildings, Energy and Building, 38(5), 491–501.
  • [3] Rijal H. B., Tuohy P., Humphreys M. A., Nicol J. F., Samuel A. and Clarke J. (2007). Using results from field surveys to predict the effect of open windows on thermal comfort and energy use in buildings, Energy and Building., 39(7), 823–836.
  • [4] Givoni B. (2011). Indoor temperature reduction by passive cooling systems, Solar Energy, 85(8), 1692–1726.
  • [5] Dabaieh M., Wanas O., Amer M. and Johansson E. (2015). Reducing cooling demands in a hot dry climate : A simulation study for non-insulated passive cool roof thermal performance in residential buildings, Energy and Builing, 89, 142–152.
  • [6] Nahar N. M., Sharma P., & Purohit M. M. (2003). Performance of different passive techniques for cooling of buildings in arid regions, Building and Environment, 38, 109–116.
  • [7] Netam N., Sanyal S. and Bhowmick S. (2017). Thermal Performance Analysis to Assess Inhabitant Comfort inside LIG houses in Chhattisgarh, International. Journal of Theoretical Applied Mechanics, 12 (3), 613-622.
  • [8] Nayak J. and Prajapati J. (2006). Thermal Performance of Building, Handbook of Energy Conscious Building 38.
  • [9] Duffie J., Beckman W. and Worek W. M. (1994). Solar Engineering of Thermal Processes, 2nd edition, John Wiley & Sons, New York.
  • [10] Morau D., Libelle T. and Garde F. (2012). Performance evaluation of green roof for thermal protection of buildings in reunion island, Energy and Building 14(262), 1008–1016.
  • [11] Lazzarin R. M., Castellotti F. and Busato F. (2005). Experimental measurements and numerical modelling of a green roof, Energy and Building, 37, 1260–1267.