The effectiveness of personalized ventilation based on air movement around a room's occupant largely depends on the supply air terminal device or ATD. Five different ATDs were tried and compared. A normal office workplace with a desk and mounted ATDs was simulated in a climate chamber. An office worker was simulated by a breathing thermal manikin. Tests were performed at various air temperatures of 26C and 20C and personalized air temperatures of 20, 23 and 26C provided by the ATD. The flow of personalized air was increased from less than 5 L/s up to 23 L/s.
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