Dear Jan Romer,

The software laboratory of Prof. Heidt at the University of
Siegen has developed an excellent software to calculate
hourly external shading coefficients due to all kinds of
neighbouring obstacles. It is called SOMBRERO, and is very
easy to use. It also produces files for use by other
programmes like TRNSYS, TSBI3 etc.

You can contact Prof. Heidt at the Physics Dept., University
of Siegen, Adolf-Reichwein Strasse, D-57068 Siegen,
Germany. Tel.: +49.271.740 4181; Fax: +49.271.740 2379.

E-mail: heidt@physik.uni-siegen.de
web site: nesa1.uni-siegen.de

Anil Misra
**************************************
1974 to 1999
25 years of innovation and change
TERI's silver jubilee
**************************************
T E R I
New Delhi - 110 003 / India
Fax  462 1770 or 463 2609    Country code 91
Tel.  460 1550 or 462 2246   City code 11
Web  www.teriin.org


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