|
|
|
 Jones Federal Building
| 开发商: |
|
容积率: |
|
| 地址: |
Youngstown, OH |
建筑面积: |
4,850 sq. meters |
| 竣工日期: |
September 2002 |
高度: |
4-story building |
| 能源利用: |
Heat, supplied by municipal utility steam, is distributed via coil-equipped air handlers and finned-tube radiators. Originally, chilled water for cooling was also to be supplied by the utility; however, late in the project, the chilled water became unavailable, and, instead, air-cooled chillers, with an approximate total capacity of 200 tons, were installed on site. This unexpected change resulted in an additional cost of approximately $80,000.
Several adjustments made after occupancy improved the building’s energy efficiency. Excessive run time in the chillers was discovered and attributed to heat gain in the computer equipment rooms. A packaged cooling unit was then installed in each of the three computer rooms to handle this localized cooling load. This allowed the main chillers to handle the general building cooling loads. Exhaust heat from the packaged coolers is directed to the lower-level parking garage. A recirculation loop was installed to optimize the use of the utility supplied heat. As a result of these efforts, as well as adjustments to building system controls, the overall energy consumption was reduced by 20 to 25%.
Clerestory windows, a central light well, and conventional windows supply daylighting to over 75% of occupied spaces. Spectrally selective glazing in all of the fenestration controls excess heat gain while transmitting high levels of visible light. Photoelectric sensors dim or turn off electric lights when daylight is sufficient. A highly reflective, white membrane roof reduces heat gain during the cooling season. (A small portion of the roof is metal.) |
| 选址和节水方案: |
An estimated 62% of the building materials used, by cost, were sourced or manufactured within 500 miles of the site. Locally sourced brick veneer, for example, was used on a portion of the building exterior.
Steel used for the building’s structural frame has a recycled content of approximately 90%, including substantial post-consumer content. The carpeting used in the building also has recycled content.
Ozone-safe compounds were specified as fire suppressant, and an ozone-safe refrigerant is used in the chillers.
A recycling station is provided for occupant use.
|
| 室内环境品质: |
The site is landscaped with drought-tolerant plant species, and no irrigation systems were planned or installed. Water conservation measures will save an estimated one million gallons of water annually. |
| 材料选择: |
Over 75% of the occupied building spaces are daylit. During construction, ducts were sealed to prevent the entry of dust and other contaminants. For a two-week period prior to occupancy, the building was ventilated to purge residual airborne pollutants. The carpeting and wood composites used in the building have low levels of volatile organic compound (VOC) emissions. |
| 设计创新: |
|
| 相关评论: |
|
|
|
