DGS Central Utility Plant, USA

DGS Central Utility Plant, USA1

Green Aspects

Construction and demolition waste management

The contracting of efficient off-site recycling services minimized project waste. In total, 89 percent of all project waste was recycled and diverted from landfill. The old plant was also demolished and 91 percent of demolition waste was diverted from landfill.

DGS Central Utility Plant, USA-5Reducing the environmental impacts of construction nolvadex-d steroids

Dampening areas of the site with water reduced dust and street cleaners were used to keep adjacent roads clean. Special low-noise construction equipment was used to minimize noise pollution. Materials with high-recycled content were selected and over 20 percent of the construction materials contained recycled content, such as steel and carpets. The mat-slab foundations, which distribute wall loads across an entire building area, also contained 30 percent fly ash.

More efficient heating and cooling

The plant is highly efficient and is designed to use 58 percent less energy than the old plant, which corresponds to savings of 28,000 kWh per day. Highly efficient heating and cooling equipment include the steam heating plant and the evaporative cooling plant. The cooling plant predominantly operates at partial load as it stores cooled water in the TES tank, which provides cooling during peak periods. The TES tank has double the required insulation to reduce heat gain to less than 1 percent over a 24-hour period in the summer. The plant’s heating and cooling capacity can be varied to more accurately meet demand and reduce energy wastage. The plant is equipped with a performance monitoring system and the post-occupancy performance will be monitored for 2 years with the objective of further enhancing plant efficiency.

Energy efficient building

An occupancy and demand ventilation control HVAC (Heating, Ventilating and Air Conditioning) system was installed, which uses 70 percent less energy than the current ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) standard. The office cooling system is capable of either evaporative cooling or refrigerant based cooling, and automatically selects the most energy efficient cooling method under the prevailing conditions. Low-energy evaporative cooling is used when atmospheric conditions allow rather than refrigerant based cooling, which requires more energy but can be more efficient in periods of high humidity. External shading avoids overheating in summer and high performance low-E glazing helps to insulate the buildings. The extensive use of natural day lighting reduces the need for artificial lighting, and efficient lighting with occupancy sensors was installed. efectos del zithromax

Reduced greenhouse gas emissions taper off prednisone cats

The reduced energy consumption of the plant annually saves over 4,300 tons of CO2. The plant is also equipped with combustion air preheating and low NOx natural gas burner assemblies, which minimize combustion emissions of CO2, CO, NOx and ozone. NOx is a potent greenhouse gas that is 300 times more effective at trapping heat than CO2.

Water efficiency zithromax dose pediatric pneumonia

The plant uses 90 percent less water than the old plant, which makes daily savings of over 14,000 m3. Water from the cooling tower is reclaimed for toilet flushing and landscape irrigation. No potable water is used for site landscape irrigation. Water efficient fixtures in the building have reduced water consumption by over 30 percent compared with baseline figures for the building. Gardens and landscaping on the site reduce stormwater runoff.

Reduced impact on the Sacramento River cheap generic viagra from india

The new plant uses evaporative cooling towers and no longer discharges warm water into the Sacramento River. The discharge of warm water from the old plant could reach 15,500 m3 per day during the maximum summer load. The plant therefore has less impact on aquatic systems in the river. walmart pharmacy online prescription refill canada

On site renewable energy generation

The facility is equipped with solar water heaters that provide 90 percent of the domestic hot water supply for the office. The plant is also equipped with an 11 kW photovoltaic array that generates 17 percent of the plant’s power requirements for the facility’s office and support areas. zovirax ointment costco

Environmental public awareness levitra 20mg tabletten

Permanent educational display boards of various sizes are hung in the viewing area overlooking the chiller plant. The DGS also provides information brochures and guided tours to educate visitors of the sustainability aspects of the plant.

Aesthetic enhancement of the site

The 1960s plant was replaced by a modern design, which was intended to blend into the surrounding architecture and enhance the aesthetical attractiveness of the site. The design minimized the height of plant structures and arranged tall edifices, such as the TES tank, in the centre of the site to reduce the scale of the plant and the shading of surrounding buildings. Planter boxes and canopies on the mezzanine level also help to reduce the scale of the plant. The plant design incorporated the TES tank as an attractive landmark feature, which is wrapped in a blue and white metal insulation jacket designed to give the appearance of water sparkling to the top of the tank. The building footprint of the site was reduced and some of the open space was landscaped into gardens with various plants and trees. 6 existing trees were removed to make way for the plant, but Skanska planted 15 new trees in the new landscaped areas to compensate. A magnolia garden was created to the north of the site, which preserved an existing cluster of magnolia trees. The garden is open to the public and contains benches, paths and a water feature that reuses water from the plant.

Reduced urban heat island effect

The site has been designed to reduce the urban heat island effect by minimizing the extent of dark surfaces. The roof of the plant and hardscape around the buildings are all light colored, except for a small area of asphalt paving for parking. The existing large trees were preserved and incorporated into the design to provide shading for the building and the adjacent pedestrian walkways. dapoxetine online pharmacy

Additional Info

  • Project Type: Water, Renovation
  • Location: USA
  • Green Aspects: Energy, Carbon, Local Impacts diflucan rash skin
  • Social Aspects: Human Resources, Corporate Community Involvement, Health & Safety safe to buy generic viagra
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