1999 ASHRAE Technology Awards: Optimizing Building and HVAC Systems

Argues that buildings designed and constructed using an energy design process that optimises the interaction between the building envelope and systems can save between 30% and 75% in energy costs. These buildings can be constructed for the same or nearly the same first cost as non-energy efficient building with no sacrifice of comfort or functionality. Describes the application of this energy design process to design and construct the 10,000ft² Thermal Test Facility (TTF) at the US Department of Energy's National Renewable Energy laboratory. Details the daylighting strategy, the energy-efficient building envelope and HVAC system loads and operation. Sets out the nine-step process for low-energy building design. States that actual performance data collected for more than one year show that the TTF costs 63% less to operate than an equivalent building which complies with ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings.