ASHRAE bestows tech awards
Technology awards highlight outstanding building projects that incorporate elements of innovative building design.
Designers of systems for two office buildings, a warehouse, and college library are recognized by ASHRAE for incorporating elements of innovative building design.
First place recipients of the ASHRAE Technology Awards were recognized at the Society's 2010 Winter Conference, held in Orlando, Fla. The recipients have applied ASHRAE standards for effective energy management.
The following are summaries of the winning projects.
The Terry Thomas
Michael Hedrick, Thomas Marseille, PE, and Long Lam, Stantec Consulting, Seattle, receive first place in the new commercial buildings category for a four-story office building, The Terry Thomas, Seattle.
The Terry Thomas is the first modern Class A office building to be built without mechanical cooling in the Puget Sound region in decades. Shading, daylighting, building form and structure, and other load reduction strategies were critical to the successful implementation of a passive cooling strategy. The use of natural ventilation, along with a hydronic heating system, has drastically reduced the energy consumption of the building to 45.9 kBtu/sq ft-year, 53% better than the average office. Additionally, the building includes: automated external blinds controlled by meteorological conditions; motorized louvers controlled by CO2 sensors during the heating season and thermostats in the cooling season; integrated building design for passive cooling, daylight and occupancy; and waterless urinals and dual-flush water closets
Martin Roy, P.Eng.; Martin Roy et Associes Inc.; Deux-Montagnes, Quebec, Canada, receives first place in the industrial facilities or processes category for Sobey's Warehouse, Trois-Rivieres, Quebec, Canada.
A refrigerated warehouse in Trois-Rivieres can be a very chilly place when winter comes around; that's why Roy worked to balance keeping the warehouse cold and its employees warm and comfortable, all while saving energy. An ammonia central chiller and glycol secondary distribution fluid system keeps the warehouse at 39 F, and can operate in free cooling mode by using the thermosiphon principle. Ammonia is one of the best refrigerants to get high efficiency and has non-ozone depleting potential and zero global warming potential. Heat rejection from the warehouse chiller occurs simultaneously with space heating the office and common spaces. These spaces are also heated by a hydronic radiant floor and cooled by fan-coils. Additionally, the warehouse includes daylighting and occupancy detectors to control high efficiency lighting fixtures and treats all of its water on-site using constructed wetlands.
IDeAs Design Facility
Peter Rumsey, PE, Fellow ASHRAE; Rumsey Engineers; Oakland, Calif., receives first place in the existing commercial buildings category for his remodel of a one story office building, IDeAs Design Facility, San Jose, Cailf.
Rumsey's work on a California electrical engineering consulting firm's offices resulted in one of the world's first net-zero-energy and zero-carbon-emission buildings. The 7,200 sq ft
commercial office building was designed to meet 100% of its net energy requirements using renewable energy from photovoltaics. A topping slab was designed containing cross linked polyethylene radiant tubing for both heating and cooling; using water to convey heating and cooling through a radiant system uses less energy to provide the same amount of conditioned air than a forced air system. Daylighting and natural ventilation is provided by a 45 ft long south-facing operable glass door fa%%CBOTTMDT%%ade between the building and the courtyard, as well as multiple skylights. The building showed a 43% reduction in energy use from California's Title 24 and a 60% reduction from ASHRAE Standard 90.1-1999. In the spring 2009, the building generated more energy than it consumed.
The Richard J. Klarcheck Information Commons Building
Donald McLauchlan, PE, Steven Maze, and David Lavan, Elara Energy Services Inc., Hillside, Ill., receive first place in the new institutional buildings category for the Richard J. Klarcheck Information Commons Building at Loyola University, Chicago.
The Loyola's Information Commons Building, located on the shores of Lake Michigan, combines state-of-the-art mechanical systems and striking architectural features; glass exposures on the east and west sides allow views through the building to the lake. Effective natural ventilation is provided throughout the open areas due to automatically controlled operable windows on the east fa%%CBOTTMDT%%ade and inner windows on the west double fa%%CBOTTMDT%%ade. Dual path custom designed air handlers were installed to incorporate multiple functions depending on the building mode of operation. The contoured ceiling consists of coffered pre-cast concrete panels with cross linked polyethylene tubing set just below the surface; the system was designed to meet 60% of the design sensible cooling load. The exceptionally innovative design is a result of a fully collaborative approach by the Architect, Structural Engineer, MEPFPIT Engineer, and Klimaengineer.
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