Research On The Effect Of Green Roofs On The Top Of The Indoor Temperature And Energy Consumption

With the expansion of city, the city’s environmental problems are becoming more and moreserious, the heat island effect in the city more and more common. With the increasinglyhigh requirements of the living environment,energy saving and emission reduction is also moreand more attention to people.Building energy consumption occupies in our country’s total energyconsumption in proportion with the development of social economy willcontinue toimprove, so the implementation of energy-saving emission reduction be imperative.Amongthem, building energy conservation is be the first to bear the brunt, a large part proportion of theair-conditioning energy consumption is the the building retaining structure heat transfer.Toalleviate the urban heat island effect and does not affect the public life,the currently acceptedmethod, green is one of the best ways. city buildings intensive degree is more and more high, sothe article begins to study from the three-dimensional green building, and then extended tothe roof greening.This article around the effect of roof greening on top of indoor temperature and energyconsumption simulation to begin, from the two aspects of experiment and simulation on roofgreening for the indoor environment improvement and energy saving economic benefits.Due to the importance of building retaining structure of energy-saving, Shanghai City, thenew building energy conservation design standards make the comparison strict limit on the heattransfer coefficient of building envelope. Because of the period of time of the need building tostudy has been a long time, between the construction and design has been appear deviation, thisarticle use the advantages of the resource of research group.A Detector on the site test thethermal resistance of building envelope.The Detector is practical and conventient andenvironmental applicability,on-site determination of thermal conduction coefficient of envelopeof the building. Due to the limited conditions, the test the green roof cooling experiment is not rigorous, so thisarticle reference data to descripte the cooling effect of roof greening.and then use software tosimulate different heat transfer performance roof brought the change of the top of indoortemperature and the energy consumption.Analysis the advantage of roof greening in the economy,concluded the futuredevelopment direction of building roof.In the roof reconstruction project, green roofs exist thegreat advantage.And to do a summary of the deficiencies of this article and the problemsneeding to solve,and prospect the assignment of the project.