Abstract:Windows are a complex part of building design and provide a considerable benefit, including to school buildings. For the evaluation of the daylighting conditions prevailing in classrooms, the daylight factor (DF) was considered as the most appropriate parameter for indicating the quantity of admitted daylight. The DF values and CIE overcast sky were calculated using Velux Daylight Visualizer 3 software. The task of the paper is to compare various roof window openings in relation to the level of daylight in the… Show more
“…Achieving the required thermal comfort in the building is essential for meeting the needs of occupants and the satisfaction level of indoor environmental quality. Although the greater emphasis is placed on achieving a satisfactory air temperature [64], it is equally important to achieve a satisfactory indoor humidity level, which consumes about 10-15% of the total energy consumed by the building [65]. Low or high levels of humidity in the building are associated with various sick building symptoms, bacteria, fungi, and virus risk.…”
The indoor environment that surrounds us and the elements in it affect not only our mood but also the air quality. Vegetation elements are currently more popular, especially for their aesthetic value but also because of the fact that they affect the physical parameters of the indoor environment such as temperature and humidity. Water elements are a similar example. The presented paper combines these two elements to achieve the best possible level of thermal comfort. Experimental verification of the influence of the living wall on air temperature and humidity took place during the heating season in the city of Brno in the space of the university, while three scenarios were created: the effect of the living wall in a semi-open space, an enclosed space, and a space with a water wall with regulated water temperature. The potential of the water wall is determined based on experimental verification in laboratory conditions. The results show that the synergy of the living and water wall in the indoor space may eliminate the risk of too-low humidity during the heating season.
“…Achieving the required thermal comfort in the building is essential for meeting the needs of occupants and the satisfaction level of indoor environmental quality. Although the greater emphasis is placed on achieving a satisfactory air temperature [64], it is equally important to achieve a satisfactory indoor humidity level, which consumes about 10-15% of the total energy consumed by the building [65]. Low or high levels of humidity in the building are associated with various sick building symptoms, bacteria, fungi, and virus risk.…”
The indoor environment that surrounds us and the elements in it affect not only our mood but also the air quality. Vegetation elements are currently more popular, especially for their aesthetic value but also because of the fact that they affect the physical parameters of the indoor environment such as temperature and humidity. Water elements are a similar example. The presented paper combines these two elements to achieve the best possible level of thermal comfort. Experimental verification of the influence of the living wall on air temperature and humidity took place during the heating season in the city of Brno in the space of the university, while three scenarios were created: the effect of the living wall in a semi-open space, an enclosed space, and a space with a water wall with regulated water temperature. The potential of the water wall is determined based on experimental verification in laboratory conditions. The results show that the synergy of the living and water wall in the indoor space may eliminate the risk of too-low humidity during the heating season.
“…It will be created above the existing floor of the original building. The content of the article follows on from [1], where the authors tried to find out and describe the influence of the size of roof windows, on the indoor climate of the attic. Assuming an adequate design of the heating system and the thermal insulation properties of the used dividing structures, an acceptable climate and well-being can be achieved in the attic during the winter.…”
The presented study deals with the space located in the attic of an older building after reconstruction. Originally, the attic space was not used, as it did not have sufficient headroom. The reconstruction was designed in such a way that the entire original pitched roof was gradually raised by 1.2 meters in parts, creating a full-fledged space under the pitched pitched roof. The visual connection of the interior space with the exterior was ensured by continuous strips of vertical windows around the perimeter of the building, each window measuring 600x600 mm. The space is also illuminated by several skylights at roof level, which, although they ensure sufficient penetration of daylight from above into the interior, at the same time allow for considerably unpleasant overheating. The task was to find a way to optimize the size of transparent surfaces and determine the accumulation of building structures in order to achieve an acceptable cumulative effect of daylight and overheating, i.e., permissible increase in indoor air temperature in summer. It means trying to theoretically design a suitable and comfortable interior space in the attic in an already existing building.
“…As a result, there is a greater need for energy for cooling [5]. Therefore, several studies focus on optimizing and reducing energy consumption for cooling spaces, for example by using different ventilation strategies [6], including the natural ventilation between buildings [7] but also by using intelligent shading, progressive glass systems, or appropriate orientation to the cardinal points [8]. This is also related to room daylight, which has a significant impact on the quality of the indoor environment [9].…”
The building industry, like many other industries, is driven to take a significant turn due to the pressing issue of global climate change. The potential in digital technologies and digital design approaches is pushed forward and exploited in architecture, structural, civil, and geotechnical engineering. The challenges such as the overheating of buildings and urban spaces, lack of drinking water, expensive and environment-aggressive building materials, and many more are investigated in more depth in Volume 17 of the Selected Scientific Papers - Journal of Civil Engineering.
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