Thermal efficiency in precast concrete buildings

Kueh, Yuen Chan (2015) Thermal efficiency in precast concrete buildings. BEng dissertation, University of Portsmouth.

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    Fabric Energy Storage (FES) which is also widely known as thermal mass has been one of the properties of concrete. In-situ concrete buildings in the modern days have been relying mainly on mechanical ventilation system – Heating, ventilation and Air-Conditioning (HVAC) to provide thermal comfort for the occupants in the building. Engineers have been exploiting the fabric energy storage of concrete and applying it in precast concrete buildings in order to cut down on the energy cost and the reliability on heating and cooling system, of which the main source is electricity and gas. Thermal efficiency in a precast concrete structure is focused on due to the design flexibility of the structure at which systems developed can be compounded into the walls and slabs in particular to help reduce the usage of energy in mechanical system requirements. As compared to in-situ concrete buildings, the later will not be able to benefit from the application of mixed-mode ventilation system as HVAC system is the only heating and cooling system that can be applied in the building.
    This project researches on the thermal efficiency of concrete in precast concrete buildings and how the incorporation of systems in the building will reduce the overall energy usage. Desktop study on two buildings with natural and mechanical ventilation have been carried
    out. Aside from that, simulations on model buildings were performed in such a manner to determine the thermally efficient building and also to compare the mean internal temperature and energy requirements.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Jane Polwin
    Date Deposited: 21 Oct 2015 16:48
    Last Modified: 21 Oct 2015 16:48

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