The architectural thermal environment simulation software “ThermalOne (Trial Version)” was released in conjunction with our presentation at the Architectural Institute of Japan Convention (Kyushu), held from September 9th to 12th.
– Background and Development History –
In Japan, measures are urgently required to achieve carbon neutrality by 2050 and a 46% reduction in greenhouse gas emissions by FY2030. The commercial and residential sectors, which primarily consist of buildings, account for approximately 30% of the country’s total energy consumption, making initiatives in this field a pressing issue.
Heading toward 2030 and 2050, as further advancements in building environmental performance—such as improving energy efficiency and utilizing renewable energy—are demanded, it is crucial to predict building performance using thermal environment simulations at an early design stage and to implement sufficient measures in advance.
In response to these societal demands, we have developed a user interface for a simulation tool that was previously used primarily for research and specialized design, allowing practitioners to perform simulations with relative ease.
– Features and Capabilities of ThermalOne –
ThermalOne allows users to generate most of the necessary building models and simulation data directly within “Rhinoceros” and “Grasshopper,” the 3D architectural modeling software used by professionals worldwide. Following data generation, users can execute simulations and visualize the results with just a few simple operations.
For the analysis engine handling the actual computations, ThermalOne employs the proven “THERB for HAM” calculation model, developed and utilized extensively in research by the Ozaki Laboratory. Because this model focuses on the precise, physics-based reproduction of actual heat and moisture transfer phenomena occurring inside and outside of buildings, it enables flexible simulations that can accommodate advanced technologies and diverse architectural types, ranging from residential houses to commercial buildings.
Furthermore, a key strength of this calculation model is its capability to analyze moisture-related factors, such as humidity and condensation. It is expected to play a vital role not only in relatively high-humidity regions like Japan and Southeast Asia but also in future building design globally, as atmospheric moisture levels are projected to increase alongside global warming.
– Future Prospects –
As the current release is a Trial Version, we will continue to gather user feedback to expand functionality and enhance usability. Moving forward, we plan to sequentially release the Standard, Professional, and Premium versions.