A windows-based pc-software to design thermal environment in residential houses

We developed a PC-software to estimate thermal environment of a residential house. To make the software practical for non-technical people, the easiness of operation was our main interest in this development. This led us to adopt a fully graphic interface, dynamic database of the structural walls and a comparative output of the thermal estimation. As a result of error comparisons within various numerical methods, we decided to use the full implicit finite element method to calculate the transient heat flow in the walls.