International projects
Solar control - integrated approach to solar control techniques
Organisations (1)
| no. |
Code |
Research organisation |
City |
Registration number |
No. of publicationsNo. of publications |
| 1. |
0510 |
University of Ljubljana |
Ljubljana |
5085063 |
250 |
Abstract
A major source of the differences in the evaluation of the summer thermal behaviour of buildings and the strong dissatisfation of end-users is evident in the lac of knowledge on the performance parameters / algorithms utilised for the calculation of shading effects. In fact, they do not take into account direct, diffuse and reflected radiation as well as the radiative and convective heat transfer. %LFurthermore, the development of appropriate testing procedure for assessment of the overall performance of Solar Control devices has received much the same scarce amount of attention. Although the scope of CEN TC 89 WG6 activities and WG7 Ad Hoc Group on "Solar and Light Transmission" deals strictly with the issues regarding the properties of Shading Devices, they pointed out a distinct lack of technical background in the field. Furthermore the shading device sector is widely dispersed, with small and medium sized companies, often lacking R&D laboratories and without adequate support for the investigation and characterisation of the performances of their products. %LIn consequence, it exists a further definite necessity of investigations at international and publicly funded level of the performance of shading devices in order to overcome the existing lack of support towards industry and final user, thus improving the dissemination of knowledge and the effectiveness of the application of these techniques. %LSpecific objectives of this proposal are: %L1) Developing new technologies and control devices directed to smart components for integration into the building envelope, with special intention on their impact on energy consumption and improvement of the indoor comfort as well. 2) Characterising the integrated performances of the most interesting shading devices (external, interpane and internal) by means of a proper testing procedure. %L3) Supporting CEN activities in the area of Solar Control both for testing procedures and for design/labelling purposes (mainly WG4, WG6 and WG7 of TC 89), as well as strict collaboration with EA Tasks 11, 12 and the coming Task 21 and with current European Projects. %L4) Offering to the European architects and building designer design guidelines and a directory of solar control devices reporting component performance in all areas of DAYLIGHTING-SHADING-VENTILATION-HEATING. %L5) Producing simplified algorithms able to describe the integrated performance of the most interesting shading components for heating, cooling and daylighting, to be incorporated in existing codes (i.e. PASSPORT+). The main tasks to fulfil the above objectives can be outlined as follows: - Experimental investigation on the thermal performances of representative commercial shading devices, with special attention to the internal and the interpane ones, not investigated in PASCOOL yet. %L- Modelling of thermal algorithms related to the devices under investigation and validation by means of the experimental results. %L- Detailed experimental investigation on the daylighting performances of the devices assessed in PASCOOL and on the products above investigated. - Modelling of daylighting algorithms related to the devices under investigation and validation by means of the experimental results. - Experimental investigation on the impact of natural ventilation on the thermal performances, as well as assessment of the effects of the shading devices on natural ventilation. %L- Modelling of the impact of shading devices on natural ventilation algorithms. - Development of user-friendly smart solar control strategies and relevant evaluation algorithms. %L- Development of smart components for solar control to be integrated in building envelope, with special attention to the refurbishment market. - Validation of the performance of the innovative developed smart components by means of testing procedure in full-scale environment. %L- Support to CEN Standardisation WGs. %L- Incorporation of the developed simplified algorithms for the evaluation
