Abstract
In geographical areas with cold climates, large, massively constructed industrial and warehouse buildings and logistics complexes are large consumers of energy resources. The great height and large contained volumes of the premises, the presence of a significant number of doors, and building configurations that include many transport corridors all require the use of air-thermal curtains to increase the energy efficiency of the buildings’ heating, ventilating, and air-conditioning (HVAC) systems, which commonly produce several thousand kilowatts of thermal power. Optimization of air curtains can improve the microclimates of the premises, achieve savings in the initial construction costs, and also reduce energy consumption during operation by 10–20%.
Highlights
Air curtains are local ventilation devices that are used in industrial buildings, warehouses, maintenance facilities to reduce leakage of airflow through gates/apertures in building enclosures
Results show that the traditional air-thermal curtains (ACT) with heated air saves about half the heat loss through the door opening and provides an optimum temperature mix equal to the room air temperature: tm = tin = 20 ɋ ș ȿ Ș
IUAC saves about 1.5 more heat energy compared to ACT, but with a lower hygienic efficiency: tm = 1 °ɋ ș ȿ Ș
Summary
Air curtains are local ventilation devices that are used in industrial buildings, warehouses, maintenance facilities to reduce leakage of airflow through gates/apertures in building enclosures. Their operation is based on damping effect of air jets that are supplied into the area of the open aperture. Industrial buildings can have one or multiple gates equipped with different types of air curtains (Figures 1 and 2) [2,3]. As a rule, are comprised of modular unified sections that cover an area of up to 10,000 m2 each and that are equipped with gates for road and rail transport (Figure 2). Air curtains can affect the total heat load of the building from 20 to 60%. [4]
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