Impacts of Shading and Glazing Combinations on Residential Energy Use in a Hot Dry Climate

Conference · Fri Aug 25 04:00:00 EDT 2000

OSTI ID:763375

Farrar-Nagy, S; Anderson, R; Hancock, C E ^[1]; Reeves, P ^[2]

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1. National Renewable Energy Laboratory
2. Partnership for Resource Conservation

A residential building in Tucson, Arizona, was studied to evaluate opportunities for reducing cooling energy use in a hot dry climate. The reduction of solar heat gain was strongly influenced by spectrally selective windows, architectural shading, and site shading from adjacent buildings. The study emphasized accurately modeling these features to account for effects on the energy load. Building performance was modeled using a detailed hourly energy simulation tool and was measured while unoccupied for a period of 12 days. Model inputs included direct measurements of the net air exchange rate, surface reflectance, and window transmittance. Model results showed good agreement with the direct measurements of cooling loads and air-conditioning energy use. A parametric study of annual energy use is presented showing the impacts of glazing type, architectural shading, site shading, and building orientation. It is important to understand these interactions to optimize energy savings in community-scale housing developments.

• Research Organization: National Renewable Energy Lab., Golden, CO (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC36-99GO10337
• OSTI ID: 763375
• Report Number(s): NREL/CP-550-28203
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR CONDITIONING
ARIZONA
BUILDING AMERICA
BUILDING EFFICIENCY
CLIMATES
COOLING LOAD
ENERGY CONSERVATION
ENERGY EFFICIENCY
GLAZING
GLAZING MATERIALS
HEAT GAIN
HOT DRY CLIMATE
NATIONAL RENEWABLE ENERGY LABORATORY
PERFORMANCE
RESIDENTIAL
RESIDENTIAL BUILDINGS
SHADING
TUCSON
WINDOWS