Development of a method to simulate the hourly performance of a louvered shading device using real insolation data

Conference · Tue Jan 01 04:00:00 EST 1980 · Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

OSTI ID:6509626

Kennish, W J; Ahmed, M

Externally mounted louvered screens have been used for many years to overcome direct gain and glare problems. But available manufacturer's performance data does not adequately account for such factors as latitude, climatic condition, wall orientation and surrounding environment which are important in establishing levels of building energy consumption. An algorithm was developed which accounts for these factors. Hourly simulations using TMY weather tapes were performed for Washington, DC and Phoenix, Arizona for clear and cloudy days during the winter and summer. The hourly results (shading coefficients) for these typical days are presented. Based on these results it would appear that the performance of louvered screens with respect to peak load shading and daylighting is being significantly underestimated. It is also apparent that the published data is not appropriate for use in detailed energy analysis programs such as DOE-2 or BLAST.

• Research Organization: TPI, Inc., Beltsville, MD
• OSTI ID: 6509626
• Report Number(s): CONF-801016-(Vol.1)
• Conference Information: Journal Name: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States) Journal Volume: 5.1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
CALCULATION METHODS
CLIMATES
DAYLIGHTING
ENERGY CONSUMPTION
INSOLATION
ORIENTATION
PERFORMANCE
SIMULATION
SUN SHADES
WEATHER