【正文】 floor system, which is raised 0,30 m above the structural slab. Supply air diffuser placement is flexible, and can be changed according to the requirements of the workstation layout. Supply air enters the occupied zones at a reduced velocity of m/s as displacement ventilation. As with hydronic cooling systems, displacement ventilation has been used in Northern Europe in theaters, office buildings, restaurants and auditoriums for at least twenty years in all applications where contaminants are not heavier than air. Special attention has to be placed on temperature in order to avoid disfort in the supplied and occupied zone. Indoor air quality is improved so is energy efficiency. The pressurized access floor in the Brose building will omit ducts。外文文獻： SYSTEMS INTEGRATION: ENERGY EFFICIENT AUTOMOTIVE RESEARCH CENTER WITH RADIANT COOLING FLOORS Abstract The German automobile systems manufacturer BROSE Inc., is currently in the process of designing its new research, development and headquarter facility in Auburn Hills, Michigan. The programmatic requirements of this twostory facility include 7,000 m2 test facilities, prototype shops and educational/recreational space. The building is designed to be a loadbearing, castinplace concrete structure with imbedded hydronic radiant cooling and heating piping. The exterior envelope system will utilize high performance glazing elements, motorized and controlled textile shading screens on all facades except North, and interior glare protection. These measures ensure an optimal working environment for CAD and administrative work stations. The highly technical systems of this energyefficient building are not only fully integrated into the architecture of the building, but also into the socalled “BROSE Working World”, a panyown philosophy of desksharing, integrated employee coffee and munication break “islands” and advanced training facilities. The author of this paper is the LEED? accredited design architect of this new facility and responsible for Programming, Schematic Design and Design Development. The project is a registered LEED? building design. Introduction Brose Inc., the leading German door, seat, and window systems manufacturer of automobiles is a partner of the international automotive industry, supplying products for more than 30 clients and leading seat producers. At 24 locations worldwide, there are approximately 7,000 employees engaged in developing and producing ponents and systems for automobile doors and seats. Due to the increase in market share in the US market and the purchase of the automotive door closure division of Robert Bosch GmbH in Stuttgart, Germany, the pany decided to plan a new facility in Auburn Hills, Michigan, which will acmodate not only the central administration for the American continent, but also the necessary test and shop facilities, climatic and acoustical chambers and training facilities for employees. The familyowned pany places great emphasis on architectural design of their facilities as an important ponent of its corporate identity。 attitude towards the technology, which led to new hydronic system designs with better control. The use of the same piping, typically manufactured of copper, synthetic rubber such as EPDM, and plastics such as polyethylene, polypropylene and polybutylene for the circulation of cold water is today still relatively unknown and faces certain resistance not only by clients but also the design munity. Radiant Cooling A corecooled ceiling is the cooling equivalent of a floor heating system. In