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U.S. Department of Energy
Office of Scientific and Technical Information

Modifications to the FCHART/SLR version 2. 0 program

Technical Report ·
DOI:https://doi.org/10.2172/5641994· OSTI ID:5641994
A number of errors have been detected in the FCHART/SLR computer code as it pertains to the thermal performance of passive solar energy systems. Along with minor coding changes, major revisions in the code have been made to improve the computer models used to predict the effects of overhangs on incident solar radiation and the radiation absorbed in attached sunspaces. Modifications to the code were also made to improve the handling of mullions and to reduce the effort required to describe the placement of overhangs. The theoretical basis of these changes, along with the associated alterations to the code, are given. For the cases examined, the program as modified now agrees to within 15% of published LANL passive system performance correlations. This new code has been designated as Version 2.1 and is presently operational at SSEC.
Research Organization:
Southern Solar Energy Center, Atlanta, GA (USA)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-79CS30166
OSTI ID:
5641994
Report Number(s):
SSEC/TP-41237; ON: DE82009471
Country of Publication:
United States
Language:
English