ArchitectureArchitectural EngineeringBuilding ScienceAir ConditioningHeat TransferHvac SystemsAir Conditioning SystemsAir InfiltrationBuilding Cooling SystemsHeat Transfer In BuildingsIndoor Thermal EnvironmentThermal Comfort DesignAir ExchangeAir Exchange EffectivenessAir Exchange PerformanceIndoor Air ExchangeInfiltration Heat TransferTracer ExperimentsTracer TechniquesTracer Validation
AIR EXCHANGES THROUGH THE OPEN DOORS OF COLD ROOMS WERE MEASURED BOTH WITH AN ANEMOMETER AND A TRACER. THE RESULTS WITH THE ANEMOMETER SHOW THAT TAMM'S EQUATION SHOULD BE CORRECTED BY A 0.68 FACTOR. ANOTHER FACTOR WAS EVALUATED (ABOUT 47% DECREASE) AND IT CONCERNS IMPERFECT AIR INTERCHANGE. AIR CURTAINS REDUCE INFILTRATION TO ABOUT 75-80% AND PLASTIC CURTAINS TO ABOUT 93%. FORKLIFT TRAFFIC AND INTERNAL CIRCULATION FANS ACT ON AIR EXCHANGES. THE RELATIONSHIP BETWEEN THESE EXCHANGES AND ENERGY CONSUMPTION IS OFTEN COMPLEX AND DEPENDS ON HOW THE ENTERING AIR IS COOLED.