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 Energy Resource Center
| 开发商: |
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容积率: |
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| 地址: |
Downey, CA |
建筑面积: |
4,140 sq. meters |
| 竣工日期: |
1995 |
高度: |
2-story building |
| 能源利用: |
Energy efficiency at the Energy Resource Center is achieved through careful integration of lighting, heating, cooling, insulation, and energy management control systems. Design techniques and building technologies work together to minimize heating and cooling requirements, maximize the use of natural daylight, and maintain high indoor air quality.
Computer modules indicate that the ERC exceeded California Energy Commission Title 24 standards for new buildings by 40%.
Non-CFC, rigid-foam insulation was added to the walls, reducing heat transfer by 50%. Roof insulation in the remodeled east and west sections provides an R-value of 38, double the R-value of traditional California roofs. Insulation on the new center roof section has an R-value of 30.
Careful sealing of doors and seams minimizes energy loss through air infiltration.
A highly reflective roof coating reduces heat absorption between 10% and 40%, dramatically decreasing air-conditioning requirements. Its reflective roof also decreases the ERC’s contribution to the urban heat island effect.
Low-e glass windows further reduce heating and cooling needs by allowing little heat to penetrate during warm months or escape during winter.
Skylights and translucent window walls allow natural daylight to illuminate interior spaces. (These daylighting techniques, combined with energy-efficient lighting systems, reduce electric lighting requirements by 40%, to slightly less than one watt per ft2.)
Installation of T-8 compact fluorescent lamps and electronic ballasts, dimmer switches, and occupancy and light sensors reduces energy demand. High-efficiency lighting also reduces internal heat load, requiring less energy for air conditioning.
Both gas and electric heating and cooling systems were installed in the ERC, thereby minimizing energy requirements. (The four systems include: indirect/direct evaporative cooling, desiccant units, absorption chillers/heaters, and package units.)
An automated energy management system monitors all major building conditions—temperature, airflow, lighting, energy use, etc.—and adjusts them for energy efficiency. |
| 选址和节水方案: |
The ERC design team sought to minimize the use of natural resources by decreasing consumption, reusing materials, recycling, incorporating products that contain post-consumer recycled content, and avoiding materials that threaten fragile ecosystems.
About 80% of all ERC construction materials, interior furnishings, and displays are recycled, contain recycled materials, or are made of renewable resources.
Recycled-content building materials were incorporated throughout the ERC, including recycled steel, glass tiles, and plastic bathroom partitions.
Materials were specified to protect fragile ecosystems when possible; virgin products were avoided. For example, the ERC entry lobby is laid with reprocessed wood from an old Banana Republic warehouse.
Of note is the first carpet "lease back" program; instead of purchasing carpet, the ERC leases the services it provides. Another interesting building material at the ERC is rebar made from confiscated weapons acquired through the LA Sheriff’s Department.
Diversion of Construction & Demolition Waste
The existing Gas Company building was reused; instead of demolishing the 1957 office complex, the structure was dismantled as needed. (Approximately 60% of the old building materials were either left in place, removed for future reinstallation, or recycled.
Steps were taken to reduce the amount of waste destined for local landfills by recycling hundreds of tons of demolition material. Items separated for recycling included: concrete (232 tons sent to crushers and recyclers), asphalt (820 tons), metal (57 tons), drywall (27 tons), and roofing materials (23 tons).
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| 室内环境品质: |
The design team chose plumbing fixtures and landscaping practices that reduce water, energy, and sewage treatment requirements. Ultra-low-flow toilets, which reduce water usage by at least 50% compared to conventional toilets, were used; the Los Angeles Department of Water and Power provides rebates for the installation of ultra-low-flow toilets. Drip irrigation was specified and installed for water-conserving landscaping. |
| 材料选择: |
The Energy Resource Center’s designs, systems, and material choices optimize the quality of the indoor environment. Efforts were made to minimize the installation of products containing toxic substances and to maximize the use of fresh air in energy-efficient ventilation systems.
Designers avoided, where feasible, selecting materials that offgas harmful chemicals. Sensors to monitor carbon dioxide levels and control air intake were specified to optimize indoor air quality as well as energy efficiency in the main exhibit hall. Periodic inspection and maintenance of the ERC’s air-conditioning systems were specified to insure optimal indoor air quality.
Indoor Air Quality (IAQ) consultants reviewed and evaluated the building design, including construction materials and mechanical systems; developed a plan outlining IAQ commissioning guidelines to allow the establishment of baselines for indoor environment shortly after the building was occupied; and established an IAQ monitoring program to evaluate the building construction practices.
Air quality in the ERC meets ASHRAE Standard 62. Carbon dioxide levels will be monitored and kept below 700 ppm. Airborne particulate levels in the supply-air to the building will be controlled by the use of 12"-deep box filters and 2"-deep pleated panel filters in the main Air Handling Units, with respective efficiencies of 65% and 35% as determined by ASHRAE Atmospheric Dust Spot Test. Desiccant cooling systems are installed in the kitchen areas, where higher than normal latent heat loads are expected. Prior to occupancy, ventilation procedures were carried out to minimize the build-up of construction pollutants.
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