Abstract
Using the personal ventilation systems may improve the thermal comfort sensation. At the University of Debrecen, a personal ventilation system was developed named ALTAIR. This paper presents the results of mean air velocity, turbulence grade, and draught measurements related to newly developed air terminal devices which are connected to the ALTAIR personal ventilation system. In order to define the measurement points it was essential to test the new air terminal devices (ATDs) in front of a black wall and smoke puffs. A series of measurements were carried out with isothermal air flow, mean air velocity, turbulence grade, and draught around the occupant head region in order to improve the thermal comfort sensation. Five different ATDs were analyzed.
Highlights
Within the current global issues, we can find the thermal comfort sensation, conditions, and indoor environment in different building categories, topics that were much discussed in the late 20th century’s publications and remain vital for the 21st century
Various air temperatures could be applied to personal ventilation (PV) systems depending on the seasons, but the present article highlights the results related to air velocity, turbulence intensity, and draught rate
The air was introduced from different airflow directions, using another air terminal devices (ATDs) type [12,13]
Summary
Within the current global issues, we can find the thermal comfort sensation, conditions, and indoor environment in different building categories, topics that were much discussed in the late 20th century’s publications and remain vital for the 21st century. Worldwide numerous publications have been released with indoor climate, thermal comfort in office buildings from heating viewpoint, cooling, mechanical ventilation (mixed, displacement), and air controlling system research results [2,3,4,5,6,7]. Taking into account the thermal comfort and air quality on the head region (including head, neck, shoulders, and back, 1.1-m height) and the energy performance, we can state that the PV systems supply air at low turbulence and velocity and that it is an effective ventilation system [10,11]. System demonstrates result testing eleven different devices Personalized (ATDs). The results show that, in order to obtain the optimal air velocity and flow according toaround.
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