Calorimetric measurement of indoor sunshields
Because of the sun irradiation the incorrect dimensioning of a house can lead to excessive internal temperatures. Cooling is a common solution, but this consumes a large amount of energy. Preventing the entry of solar radiation into the building is a better solution. The main question is, which thermal effect (gand Uvalue) curtains and blinds have on the internal room temperature and cooling energy, due to less sun irradiation.
PASLINK and dynamic outdoor testing of building components
The PASLINK test facilities and analysis procedures aim to obtain the thermal and solar characteristics of building components under real dynamic outdoor conditions. Both the analysis and the test methodology have evolved since the start of the PASSYS Project in 1985. A programme of upgrading the original PASSYS test cells has improved measurement accuracy. The emphasis has moved from steady state to dynamic methods with shorter test durations yielding improved information and more accurate results. Dynamic test procedures aim to de-couple the different thermal processes within the test cell in order to obtain separation between the thermal transmission and the solar aperture of a component. In parallel with improvements in test methodology, software tools have been developed to enable the identification of the component characteristics and provide statistical information on their accuracies from the dynamic test data. The PASLINK Network has implemented quality procedures and promoted the development of participants' expertise in the design, preparation and execution of tests and the analysis of test data. © 2006 Elsevier Ltd. All rights reserved.
Frequency selective surface design for blinds applications
In this paper, the reconfigurable blind structure with frequency selective surfaces(FSS) for the building applications are presented. Frequency transmission characteristics for different angles of the proposed blind-FSSs are investigated and verified through simulation and measurement. The simulation results show that we can implement the reconfigurable blind-FSS for multiband wireless applications. To verify the proposed paper, two kinds of blind-FSSs, crossed dipole FSS and circular ring FSS are fabricated and measurements are performed for different angles. The proposed structure in this paper which is very simple, can be easily applied to any planar surface for wireless security applications at low cost.