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Institute: Institute of Construction and Architecture

Integrated Solutions for daylighting and electric lighting
Integrované riešenia pre denné a umelé osvetlenie
Program: IEA
Project leader: doc. Ing. Darula Stanislav CSc.
Annotation:Lighting accounts for about 19% of the total energy consumption. Research in the field of energy savings for lighting includes daylighting, artificial lighting, lighting control and new technologies to meet the needs of building occupants. The trend in research in this area is to integrate daylight, artificial light and their control in dependence on the light availability and building operation requirements. The main areas of the project are: - Facades of buildings and technologies for and daylighting artificial lighting with emphasis on the visual and non-visual needs of human as well as diversity and factors of the international market. The consortium will address the areas of tasks: - A. User perspective and requirements; - B. Integration and optimization of daylight and electric lighting; - C. Design support for practitioners (Tools, Standards, Guidelines); D. Lab and field study performance tracking. The project has the following main objectives: - find out a link between user requirements and energy consumption; - imitation of daylight; user-oriented lighting for high efficiency systems; orientation on the market and lighting and facade industry.
Duration: 1.1.2018 - 30.6.2021

The Effect of Chemical Composition of Concrete on Its Long-term Performance in Irradiated Environment
Vplyv chemického zloženia betónu na jeho dlhodobú trvanlivosť v (ionizujúcom) ionizovanom prostredí
Program: Multilateral - other
Project leader: Prof.Dr.Ing. Palou Martin-Tchingnabé
Annotation:The project deals with the long-term durability of concrete structures in an environment exposed to nuclear radiation. The chemical composition of concrete composites is one of the key factors that significantly influence the aging of concrete (properties) and hence the structural integrity (durability) of concrete and reinforced concrete structures. Current topics that directly affect the operation of nuclear power plants are safety, the lifetime of nuclear power plants (NPP) and the selection of building materials for the construction of new NPP units. In nuclear power plants, concrete is exposed to strong neutron radiation and gamma radiation from an energy generating reactor, and therefore the choice of its components due to their chemical composition must reflect not only the ability to withstand radiation but also other aspects related to the durability of concrete exposed to radiation. The project is a multidisciplinary integrating procedure of numerical simulation of aging of heterogeneous composite materials in ionizing environment; experimental verification based on current knowledge and newly designed aggregates and mineral admixtures as well as design of multi-component cements. The main result of this project is the proposed method of evaluation, which links mechanical and chemical changes of irradiated minerals with long-term durability of concrete structures exposed to radiation. Samples of new concrete composites will be irradiated and the effect of type and intensity of nuclear radiation on mechanical and chemical changes depending on the chemical composition of the concrete components will be investigated. • The main goal of this project, as it follows from the analysis of the current issue, is to find out the relationships between the chemical composition of individual concrete components and the durability of concrete structures in an environment with long-term ionizing radioactive radiation. • Another objective is to assess the impact of chemical, mechanical and physical changes induced by radioactive radiation on the mechanical properties of concrete structures.
Duration: 1.10.2017 - 30.9.2020

The total number of projects: 2