Bangkok Airport Radiant Cooling
Preprint from Conference, seminar on Improving Building Devices in Warm and Moist Climates Based in dallas 2004
Impressive Design Principle for the brand new Bangkok Airport terminal, NBIA Wolfgang KESSLING, Stefan HOLST, Matthias SCHULER Transsolar Energietechnik, Munich, Germany
FUZY Thermal and visual comfort and ease for the occupants of a room are certainly not defined by air temperatures only, but also radiation with its three components solar radiation, daytime and heat radiation needs to be taken into account (among other factors such as humidity, flit and occupant activity and clothing levels). In hot climates the optimization of room ease and comfort is a tough task as a result of high photo voltaic radiation within the whole season. In smart buildings fresh material advancements are applied optimizing the building envelope within an integral building design method. New solutions for weather conditions, noise and heat protection are designed, where building envelope and installed mechanised equipment come together creating ideal comfort by minimum strength consumption. This method was used inside the design of the modern Bangkok Airport terminal, NBIA to develop an maximized building strategy in a design and style team comprising the can be, structural and mechanical technicians, HVAC, traditional and weather engineers.
the specified indoor climate conditions of 24 В°C space temperature and 50 to 60 % comparative humidity call for permanent chilling and dehumidification within the building and a classy concept intended for the cover to minimize the effects of the exterior solar lots. CONCEPT ADVANCEMENT This approach was used in the type of the New Bangkok International Airport, to formulate an maximized building concept in a style team composed of the can be, structural and mechanical technical engineers, HVAC, traditional acoustic and climate engineers. Pertaining to the port building in the NBIA having a length of 440 m and a size of one hundred ten m the technique of shading by simply large overhangs was used, but concurrently a roof top created that enables daylight to feed. Large external trellis cutting blades that face to the south and open up towards the north offer effective covering for sunlight allowing dissipate indirect light from the heavens to enter home. Proper daylighting levels to get the port hall and views tremendous to the skies in combination with protection from the sun are obtained. The covering trellis cutting blades are normally ventilated and located outside of the building envelope, so their particular absorbed solar heat will not enter the building.
Figure 1 Model of the terminal and concourse complexes BOUNDARY CIRCUMSTANCES In Bangkok, the local climate is seen as a temperatures of 25 to 35 В°C and if you are a00 of relative humidity all of the year round. The annual horizontally solar radiation total is somewhat more than 1, 500 kWh/mВІa and leads to a sun radiation of just one, 000 W/mВІ on a number of days of the season with solar power altitudes near to the zenith. The problem of an international airport with 24hours working days and high inner heat a lot from people, electric equipment and lighting combined with
Physique 2 Type of the New Worldwide Bangkok Airport terminal In this case the separation of weather and sun protection layers leads to an optimized effect as a starting situation to get the air health in the terminal hall, mainly because most of the sun radiation is definitely prevented via entering the terminal corridor. 1/9
TRANSSOLAR Energietechnik GmbH, Goethestrasse twenty-eight, D-80336 Munich, Germany
Air conditioning of large volume level enclosures with internal building elements creates a high cooling down demand pertaining to the basically occupied space. In the case of the NBIA the whole volume of home is split into unconditioned specific zones at higher levels and cooled filled zones by low levels substantially reducing the total cooling demand because mechanised cooling is applied simply in spots where it happens to be needed. Two different physical systems pertaining to cooling are used. First there is also a radiant floor cooling directly removing solar and heat...