Call For Paper Volume:4 Issue:8 Aug'2017 |

Green Roof Methodology: Remedy for Urban Heat Islands

Publication Date : 28/02/2015



Author(s) :

Abhinandan R. Gupta , Dr.S.K.Deshmukh.


Volume/Issue :
Volume 2
,
Issue 2
(02 - 2015)



Abstract :

Construction activity, method or technique consumes large amount of energy, first in form of non-renewable resources like material at time of construction and secondly at post construction period in the form of operation energy. One of the major component responsible for enhancing material demand is roof .non reflective roof absorbs and retains solar energy as heat, which contributes not only to hotter roof, but also uneven thermal expansion / contraction of the roof. Creating either discomfort for the building inhabitants or increased local cooling loads. This increased absorption of solar energy by present concrete roofing system is causing heat island effect. Researchers found that city is warmer than the surroundings remote or village areas. The average temperature in large cities can range from 5 to 10 o c warmer. , this phenomenon, know as the urban heat island effect. As thermal conductivity of concrete is high as compared to other materials, the amount of thermal flux or heat transfer further increases demand for consumption of operational energy in form of fan, air cooling devices etc. Thus, to make living environment sustainable, alternative techniques should be adopted. The experimental work done over here is to check out the feasible usage of green roof concept in construction methodology, by creating model and finding out cooling effect of green roof as compared to other roofing system and further thermal analysis is done by process of simulation using Ansys Fluent Flotran. This experimental work lead to following benefits:- Reduce in heat transfer rate and thus thermal flux below roof.,Overall reduction in room temperature in day time.Reduction in material consumption, i.e resources.Environmental friendly construction techniqueReduction in operation energy consumption of house & thus making living environment healthy and economical for inhabitants.


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Green Roof Methodology: Remedy for Urban Heat Islands

February 24, 2015