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WinIso 2DThe software to calculate two-
dimensional heat flow rates
First steps
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Starter
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every task can get opened via the starter of WinIso 2D
open the task DXF.NET to convert a CAD drawing
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CAD-Conversion
the CAD-file can get loaded out of a directory at File Open
all steps of the macro get executed, and so the drawing automatically purged, by clicking on
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Editing the purged drawing
by clicking on , the polygons get determined
material get selected at the upper drop-down menu
marked areas get filled with the selected material by clicking on
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Filling areas and export
with the other buttons of the toolbar, enclosed air can get determined, polygons can get filled with random material or inside- and outside air can get set automatically
after all areas are filled with material, the file get exported to WinIso by clicking on
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WinIso 2D Editor
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by doing this, the edited drawing get opened automatically at the WinIso 2D Editor
here, the construction can get analyzed directly or edited further
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Add material
a plurality of deposited materials according to valid European norms are located at Material Material database
these materials can get added to the project easily via double click
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Fill material
a material has to get selected at the drop-down menu before to fill it into an area
by clicking on , the material get filled into the marked area
here, a standard gas get filled into the interspace between the panes, to improve the U-value of the window
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Automatically split a higher number of columns and rows follows a more accurate calculation of the construction
therefore, WinIsooffers the function automatically split
the more cells get created by splitting, the much longer the program takes to calculate
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Start calculation
the calculation with random temperatures starts by clicking on
afterwards different displays can be viewed
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Isotherms Isotherms are curves of the same temperature
a good isotherm characteristic is a quality feature for a good construction element
the most valuable isotherms, like the 13°C isotherm, get distinguished in terms of color
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Range of isotherms
the range of values of the isotherm can get adjusted with
a finer range is helpful, to find the coldest position of the construction afterwards (important for example to calculate the fRsi-factor)
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Temperature fields
Additionally, the display of the temperature fields make sure that a graphical rework is available
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Heat flow fields
Heat flow fields show, where the room for improvement of the construction element in reference to the heat transfer is
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U-value the U-value is a rate, how much heat per unit area get lost through a construction element
due tu WinIso2D an extensive calculation per hand gets omitted
the U-value can get displayed by clicking on
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fRsi-value
the fRsi-value provides the requirement for avoiding the mould growth according to DIN 4108-2
it gets measured where the lowest interior surface temperature of the wall or the frame is
the fRsi-value can get displayed by clicking on
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Uf-value – Step 1
the Uf-value is the U-value of the frame and gets calculated according to EN ISO 10077-2
for determining this value manually, the glass has to get replaced by a calibrating paneeland the U-value of the paneel has to get determined
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Uf-value – Step 2
after selecting a cell to the right of the projected end of the profile, a mask for calculating opens by clicking on
the position of the profile get defined at Calculation of (here on the left)
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the prior to this determined U-value for the panel gets adopted by clicking on Apply
after calculating, the Uf-value of the profile gets displayed
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Psi-value – Step 1
the Psi-value calculation assumes an Uf-value calculation
though it has to get calculated with the real glazing
the area between the panes get filled with 10077-air and afterwards replaced by a solid at Tools
here the known Ug-value get entered
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Psi-value – Step 2
after selecting a cell to the right of the projected end of the profile, a mask for calculating opens by clicking on
at Calculation of, the Uf-Value of the profile and the U-value of the panel get entered
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the U-value of the panel can get determined as shown before and adopted by clicking on Apply
after calculating, the Psi-value of the profile gets displayed
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Uf- und Psi-Automatically
both Uf- and Psi-value calculation can be done completely automated
to this, it has to be clicked on respectively
the dimensions can get checked and, if necessary, adjusted
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Uw-value
at 10077 Uw (EN 10077-1) the determined values can get used to calculate the Uw-value
all values has to get entered manually
the length of the glass edge gets calculated automatically out of the entered dimensions
after Calculating, the Uw-Value get displayed
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Printout
at File Export different possibilities can be found to save and export the result
here an example of the word printout
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Further information atwww.winiso2d.com
Sommer Informatik GmbH Sepp-Heindl-Str. 5 D-83026 Rosenheim Tel.: +49 (0)8031 2488-1 Fax: +49 (0)8031 2488-2
