Page 219 - Solar Power in Building Design The Engineer's Complete Design Resource

LOS ANGELES AUDUBON NATURE CENTER—A LEED-CERTIFIED PLATINUM PROJECT 189

Generator Condenser

Heat Medium
Dilute Solution
Cooling/
Concentrated Solution
Heating Crifice Absorber
Change- Refrigerant Vapor
Over
Valve Refrigerant Liquid
Hot Water Hot Water
Heat Medium

Evaporator
Solution
Pump

Heat Exchanger
Figure 7.3 Los Angeles Audubon Center, solar thermal heating and air-
conditioning system. Graph courtesy of SUN Utility Network, Inc.

investment cost, which will be paid off within a few years. The following are archi-
tectural and LEED design measures applied in the Los Angeles Audubon Center.

Architectural green design measures

■ Exterior walls are ground-faced concrete blocks, exposed on the inside, insulated
and stuccoed on the outside.
■ Steel rebars have 97 percent recycled content.
■ Twenty-five percent fly ash is used in cast-in-place concrete and 15 percent in grout
for concrete blocks.
■ More than 97 percent of construction debris is recycled.
■ Aluminum-framed windows use 1-in-thick clear float glass with a low-emittance
(low-E) coating.
■ Plywood, redwood, and Douglas fir members for pergolas are certified by the
Forestry Stewardship Council.
■ Linoleum countertops are made from linseed oil and wood flour and feature natu-
ral jute tackable panels that are made of 100 percent recycled paper.
■ Burlap-covered tackable panels are manufactured from 100 percent recycled paper.
■ Batt insulation is formaldehyde-free mineral fiber with recycled content.
■ Cabinets and wainscot are made of organic wheat boards and urea-formaldehyde-
free medium-density fiberboard.