A comparative evaluation of the ASHRAE and WON solar radiation models

Conference · Mon Dec 31 23:00:00 EST 1984 · ASHRAE Trans.; (United States)

OSTI ID:5557129

Chatigny, R; Galanis, N T

Hourly values of the global and diffuse solar radiations incident on a horizontal surface, calculated with the ASHRAE and WON models at four locations in eastern Canada, are compared to the corresponding measured values. The comparison is carried out monthly for the period 1973 through 1976. The agreement is good for the summer months, but large discrepancies are observed during the last four months of the year. The seasonal performance of the WON model is more uniform that that of the ASHRAE model. The latter can be improved by adjusting the value of the clearness number. Optimum monthly values of the clearness number are presented for Montreal.

• Research Organization: Universite de Sherbrooke, Quebec
• OSTI ID: 5557129
• Report Number(s): CONF-850606-
• Journal Information: ASHRAE Trans.; (United States), Journal Name: ASHRAE Trans.; (United States) Vol. 91:2A; ISSN ASHTA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140100* -- Solar Energy-- Resources & Availability
CANADA
COMPARATIVE EVALUATIONS
HOURLY VARIATIONS
MATHEMATICAL MODELS
MONTHLY VARIATIONS
NORTH AMERICA
OPTIMIZATION
PERFORMANCE TESTING
SEASONAL VARIATIONS
SOLAR FLUX
SURFACES
TESTING
VARIATIONS
VISIBILITY