Numerical Simulation and Experiment of the Building Greening System in the Application of Increasing Indoor Thermal Comfort
Date Issued
2012
Date
2012
Author(s)
Lei, Kuan-Teng
Abstract
Building Greening System includes Green Roof and Vertical Greenery. Constructing greening system on building envelope would increase its thermal mass, and therefore retard the heat transfer process through the envelope. Besides, the physiological effects of plant associate with heat release, which would help cooling the building, and the heat dissipation of evapo-transporation process is the most significant. Moreover, the solar radiation entering building envelope would be abated by the plants, and therefore reducing the thermal effect in building structures.
Because of the effect of global warming, the electricity consumption in summer has been increasing rapidly. Therefore this research mainly discusses the building greening system in the application to eliminate the thermal effect in building structures. Using commercial finite element software ABAQUS to simulate with the model of well designed proper boundary conditions. Meanwhile, field experiments on cases of green roof and vertical greenery are also conducted in order to find out the actual benefit of both building greening system, and to verify the mathmetical model established in this research.
After the model is justified, the effect of Building Greening System applied to buildings in Taiwan’s climate is discussed. The effect is regarding to the Power Consumption Index (PCI) and Predicted Mean Vote Index (PMVI), which are defined in this thesis. The effect of general insulation material (EPS) is also discussed in order to compare with the Building Greening System.
Subjects
Building
Greening Systen
Green Roof
Vertical Greenery
Leaf Area Index (LAI)
Energy conservation
Type
thesis
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