We will conduct a natural ventilation analysis of buildings with high ceilings during the summer and in calm conditions.
The natural ventilation analysis of high-ceiling spaces conducts an examination of natural ventilation in buildings with high ceilings during the summer and in calm conditions. In large spaces, there is often a trial-and-error approach to maintaining a comfortable temperature distribution by not solely relying on air conditioning but also expecting natural ventilation. During the summer and transitional periods, the temperature distribution within the space often stratifies, with higher temperatures at the top due to solar radiation and wall convection. Therefore, if there are openings at the upper part, density-driven convection can occur, allowing hot air to be expelled outside the building. In recent thermal environment analyses, if the size, position, and opening ratio of the openings are known, it is also possible to directly calculate the ventilation airflow rate. For more details, please download the catalog.
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【Analysis Model】 - Accurately reproduces the size of the space, the shape of the building's roof, and the position and size of the grilles in accordance with the actual structure. - The number of grids is 152×85×54 = 697,680. - The internal structure of the building is also detailed as it greatly influences the characteristics of airflow. - By including the external space in the analysis, it is possible to evaluate the ventilation airflow quite accurately. 【Analysis Results】 - Thermal conditions consider heat intrusion into the space from solar radiation on the roof, as well as human and lighting loads within the building. - Openings are located at the top of the grilles, and the intrusion of outside air from the airlock is also taken into account. - Exhaust conditions with a pressurized fan are set at the ends of the building. - In the space near the airlock, the temperature rises by 1-2°C compared to the outside air temperature (33°C), and in the waiting area at the ends where many people gather, the rise is about 5°C. - Natural ventilation analysis under the influence of external wind, defined by external airflow, is also possible. ● For more details, please contact us or download the catalog.
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In environmental simulation, we develop and sell proprietary 3D fluid analysis programs and provide contract analysis services using these software tools. For over a decade, we have been engaged in thermal fluid analysis in fields such as architecture, civil engineering, machinery, and electronics, handling numerous analyses and accumulating a wealth of know-how and knowledge. Our diverse analysis and visualization functions, honed through practical experience, have received high praise as CFD software from many companies and research institutions. ● Import functionality for BIM-compatible CAD data such as Revit and DXF ● Map information (GIS) data import functionality ● SuperCartesian functionality that freely represents diagonal boundaries and complex curved surfaces ● High-speed, high-precision radiation calculations and high-precision turbulence analysis using DNS ● Moving boundary problem analysis functionality that accommodates the movement of multiple objects in space ● User-friendly interface and easy-to-understand animation features In addition to software support, we also accept contract analyses. Focusing on air conditioning ventilation and wind environment analysis, we provide high cost-performance solutions for a wide range of problems, from simple, small-scale issues to complex, large-scale analyses. We look forward to your visit, along with our abundant analysis case studies.
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