The system design is simulated in Ecotect for cumulative properties of the surface area to investigate potentials for location of photovoltaic thin films, location of absorbing materials, reflectors and orientations of system generations (reflectors incorporated in the system). The graphs shows two simulations in the summer period and in the winter period, to which a similar radiation occur in located cumulation, but large difference in values. Each panels has a minimum of 1 data set, which can be analysed and informed into the parametric model for optimisation. The aim is thereby to registre possible energy gains through solar exposure on the outer surface of the building. A strategy of lowering the cumulative radiation would equally inform the parametric model towards a lowered exposure degree towards the southern summer sun.
Winter period (november-february)
Summer period (may-august)
2 comments:
What do you mean with Cumulative radiation on surface ? will this term be defined in your report..is it realted to temperature change in the building ?
An introduction to the performative iterations will naturally be part of the report to clarify terminology, aim and methods within the given analysis/development phase to understand the premises upon which the project evolves.
The cumulative radiation is an analysis focused towards investigating surface properties for absorbed energy on each specific panel. This creates an analysis that contains measurement of how much energy the surface can produce through use of photovoltaic cells (Wh/m2), where external shading might be needed (in the case of the local system03, the construction of solar shading and reflection is implemented into the parametric organisation). Through this information materials can be applied through their physical properties of containing the energy or reflecting it into or away from the building. As the surface naturally is in contact with the outside environment will absorbed energy in the material spread to the outside, but also to the inside, when temperature drops over night. The cumulative radiation analysis is thereby both informing reflection of daylight and energy containment (thermal mass) and energy capturing (photovoltaics). Indoor temperature is thus affected by cumulative radiation, improved by directing the surface normal (which is perpendicular to the surface) towards the source or away from according to wanted effect.
This effect can further be exploited by controlled containment of the energy over the seasons, which is investigated in the cumulative radiation onto internal thermal mass. This is illustrated in the simulation above.
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