Študija delovanja programske opreme za izračun porabe energije v stavbah
Study of computer software performance for calculation of energy use in buildings

slovenian

2013

volume 62, issue 3

Zveza društev gradbenih inženirjev in tehnikov Slovenije
(Obvezni izvod spletne publikacije)

In the following study we compared the results of four computer tools for calculation of energy use in buildings, taking into account the applicable Slovenian legislation and accompanying standards. The compared tools are TOST,URSA 4, Energy 2010 and ArchiMAID. We primarily intended to carry out verification of the new developed tool TOST. The chosen example was a family house. However, already at an early stage we discovered that the calculated values between programs differ significantly, in some cases for more than 50 %. The causes for such differences could not be identified on this relatively complex case, so we decided to carry out the factor and parametric analysis ofthe simplified model. We carried out an analysis of the four basic configurations with five additional elements, totally twenty variants, which were calculated with all the selected programs. The deviations between the programs are large and well above the expected range. The results of some of the programs that are currently accessible to users are not reliable enough. It cannot be confirmed that in all, or at least in some cases the calculated energy consumptiom in bridges in accordance to the applicable legislation is carried out correctly. We believe that it was the legislature's mistake, leaving the preparation of programs completely to the market, because the complexity of calculation makes it extremely difficult to verify the accuracy of the results. It is of interest of all that this situation improves as soon as possible.

13.04.2015