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INTRODUCTION
A central notion of bioclimatic building design is the understanding that climate conditions and occupant needs arekeyinputs ofthedesign process. Bioclimaticdesign has been considered in different stages, since ancient development through vernacular architecture to modern scientific investigation based on sustainable building design and building physics. This is especially important now, when the high demand for energy in the world, the aim to reduce CO2 pollution and emissions, encourage consideration of ecological methods of energy production and the use of renewable resources. Bioclimatic design aims to lower the environmental impact of buildings by lowering energy (carbon) consumption and emissions while ensuring adequate comfort. Strategies to fulfill this objective can involve conventional passive solutions as well as active mechanical measures. State-of-the-art technologies in renewal energy sources can be integrated to minimize energy consumption throughout the service life cycle.
Inthiswork,theprimaryfocusisgiventothepotentialofapplyingbioclimaticstrategies for the design of energy-independent building situated in Lithuania's micro-climate. Case studies of bioclimatic buildings are investigated to identify suitable design strategies. Vernacular architecture is taken as a reference for the design of energy-efficient buildings.
Bioclimatic design is associated with the folowing fundamental lines of research: the first is related to solar radiation, and the second to air infiltration and natural ventilation, the third - with the soil due to its thermal insulation. Less attention has been given to the strategic use of wind. Rapid technological progress in the large wind energy industry and in the field of small wind power plants encourages the analysis of the purposeful use of wind energy to cover the building's energy needs. For this reason, typical wind characteristics in different microclimate conditions are considered. The influence of the wind characteristics on the building form is investigated, as well as how the shape of a building can be controlled and modified to influence the flow of wind to maximize the use of wind energy.
In this work, a wind and water harmony center for recreational purposes is designed in Taurage. Based on the tradition of windmills architecture, the designed building face the direction of the prevailing wind, its shape and volume are adapted to maximally harvest wind energy. In this way, ensuring that energy will be generated throughout the year regardless of the direction of the wind.
Summary
Three of Structum Išmanusis miestas IX proposed design territories are located in areas with stronger winds. Therefore, I studied these three territories of Mažeikiai, Jurbarkas and Tauragė with a comparative analysis in terms of wind strength and direction. The territory of Tauragė is fairly open, near water, surrounded by few buildings and a single trees, so there are no obstacles to the wind. This creates conditions for maximum collection of wind energy.
I conducted a study of wind loads on the shape of the building and realized that the shape of the ship's sail can direct the wind from several directions to a specific place (the center of the sail). A lot of pressure builds up, causing the wind to either go up or down. After forming an opening in that place, the wind is forced to go into it. As a result, a channel is formed inside the building. The channel narrows, which further strengthens the wind in the channel. This creates conditions for designing turbines inside the building, without visually disrupting the landscape, without harming winged animals.
Although the wind in Tauragė comes mostly from the west, the strongest wind is from the north. Based on the architecture of post windmills, the building is designed to face the direction of the wind. The rotation is created by an attached weather vane. The building is on the water so that the water gives a slip. The building is supported by a pontoon platform, which is placed on a post. The weight is supported by water and pontoons, the function of the post is topreventthebuildingfrommovingoffitsaxiswhenrotating.Thepostatthepondisreinforced with a cast concrete ring and piles. To estimate the size of the pontoons, I looked at the draft of boatsofsimilarsizeand weight,andArchimedes' principle,whichprovesthatareacompensates weight. The depth of the Balskai pond is enough for such building. I also did a study (video is in the attachments) when I placed the building model in the pool. The building rotated with the natural wind and the artificially induced wind, facing the direction of the wind.
On the first floor, a cafe and an exhibition of the works of Tauragė region artists are planned. The second floor entresol consists of turbines and ancient windmills exhibition spaces, as well as flexible conference spaces. Creative workshops are being designed on the third and fourth floors, where people can make turbines or kites. There are balconies to the second wind tunnel where people can try out their models. Living spaces are being designed on the fifth and sixth floors. On the seventh floor there is an amphitheater, from which you can see the territory of Balskai and the channel with models.Technical rooms are located on the -1st floor, installed between the pontoons. This makes it possible to bring engineering systems through the pontoons. Vertical communications consist of two evacuation staircases and two elevators
The site plan includes the design of a parking lot and an auxiliary building. It consists of changing rooms and showers so that people can practice water sports in the area. A pontoon, anchored bridge leads to the building. Efforts are made to leave as much green space as possible so as not to obstruct the wind. Next to it, a path leading to Balskai beach is being designed.