CIRCE2/DEKGEN2: A Software Package for Facilitated Optical Analysis of 3-D Distributed Solar Energy Concentrator

Conference · Sat Apr 04 00:00:00 EST 1992

OSTI ID:10108371

Romero, Vicente J. ^[1]

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1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

CIRCE2 is a cone-optics computer code for determining the flux distribution and total incident power upon a receiver, given concentrator and receiver geometries, sunshape (angular distribution of incident rays from the sun-disk), and concentrator imperfections such as surface roughness and random deviation in slope. Statistical methods are used to evaluate the directional distribution of reflected rays from any given point on the concentrator, whence the contribution to any point on the target can be obtained. DEKGEN2 is an interactive preprocessor which facilitates specification of geometry, sun models, and error distributions. The CIRCE2/DEKGEN2 package equips solar energy engineers with a quick, user-friendly design and analysis tool for study/optimization of dish-type distributed receiver systems. The package exhibits convenient features for analysis of ``conventional`` concentrators, and has the generality required to investigate features are the ability to model dish or faceted concentrators and stretched-membrane reflectors, and to analyze 3-D flux distributions on internal or external receivers with 3-D geometries. Facets of rectangular, triangular, or circular projected shape, with profiles of parabolic, spherical, flat, or custom curvature can be handled. Provisions for shading, blocking, and aperture specification are also included. This paper outlines the features and capabilities of the new package, as well as the theory and numerical models employed in CIRCE2.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10108371
• Report Number(s): SAND--91-1439C; CONF-920436--17; ON: DE92004215
• Resource Type: Conference paper/presentation
• Conference Information: 1992 ASME-JSES-KSES international solar energy conference, Maui, HI (United States), 4-8 Apr 1992
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140703
141000
99 GENERAL AND MISCELLANEOUS
990200
C CODES
COMPUTERIZED SIMULATION
CONFIGURATION
DISTRIBUTED COLLECTOR
GEOMETRY
INTEGRAL EQUATIONS
MATHEMATICS AND COMPUTERS
NUMERICAL ANALYSIS
OPTICS
SOLAR COLLECTORS AND CONCENTRATORS
SOLAR CONCENTRATORS
SOLAR FLUX
SOLAR RECEIVERS
THREE-DIMENSIONAL CALCULATIONS