Passive principles: seeing through window options
A critical analysis is carried out concerning the relative merits of double glazing (DG) vs. triple glazing (TG) of south facing windows. Also, the merits of double glazing with night insulation (R-4) are addressed. Locations chosen for this theoretical study are Boston, Nashville, and Denver. Calculations are based on a well-insulated, 1500 ft/sup 2/ house using TEASOL, a computerized thermal network algorithm. For each geographical location, south aperture area was determined as a function of % solar contribution. Also, system cost (1981 dollars) was determined as a function of % solar contribution in each case for DG, TG, and DG with night insulation with thermal mass omitted and thermal mass added (6'' concrete floor slab). The performance of the various hypothetical systems are explained as well as the cost estimates. It is concluded that DG with night insulation is most cost effective. TG should not be used for the most sunny climates (Denver). Practical limits of night insulation are mentioned. (MJJ)
- OSTI ID:
- 5663587
- Journal Information:
- Sol. Age; (United States), Journal Name: Sol. Age; (United States) Vol. 7:1; ISSN SOAGD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101 -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
ALGORITHMS
BUILDINGS
COST BENEFIT ANALYSIS
DIRECT GAIN SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
GLAZING MATERIALS
HEATING SYSTEMS
HOUSES
MASS
MATERIALS
MATHEMATICAL LOGIC
OPENINGS
PASSIVE SOLAR HEATING SYSTEMS
RESIDENTIAL BUILDINGS
SOLAR EQUIPMENT
SOLAR FRACTION
SOLAR HEATING SYSTEMS
THERMAL INSULATION
THERMAL MASS
WINDOWS