Energy demand of buildings can only be reduced, if all parameters are optimized in parallel. Future numerical models have to be able to link cooling, heating, lighting and ventilating calculations together.
Today´s numerical calculation programs allow either the exact calculation of the daylight situation within the room incl. daylight guiding systems, but not an annual determination of the total energy demand incl. The cooling, heating and ventilation energy demand or they allow an overall calculation of the annual cooling, heating, lighting and ventilating energy demand, but are not able to calculate the exact daylight situation within a room with detailed
description of the daylight guiding systems.
Due to the proposed model it should show and prove,
1. that thermal calculation models can directly be used for daylight distribution calculation incl. Daylight guiding systems and
2. that models can be described for an easy simulation of sun protection and daylight guiding systems
3.a new model for an straight forward calculation of the transmission, reflection and absorption of n-times glazing units.
The calculation model, validated through numerical checks and measurement series, allows a correct and precise calculation of the impact of daylight guiding systems and in parallel the annual determination of the energy demand of a building for cooling, heating, lighting and ventilating it.
daylight guiding, sun protection systems, venetian blind, prismatic units, glazing, transmission, energy demand
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Energy demand of buildings can only be reduced, if all parameters are optimized in parallel. Future numerical models have to be able to link cooling, heating, lighting and ventilating calculations together.
Today´s numerical calculation programs allow either the exact calculation of the daylight situation within the room incl. daylight guiding systems, but not an annual determination of the total energy demand incl. The cooling, heating and ventilation energy demand or they allow an overall...
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