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Velocity distribution in a room with displacement ventilation and low-level diffusers

Technical Report:

Abstract

The article describes experiments with wall-mounted air terminal devices. The airflow from an air terminal device will influence the occupants` thermal comfort and it is therefore important to develop an expression for this flow. The velocity at the floor is influenced by the flow rate to the room, by the temperature difference and the type of diffuser. The flow is stratified at large temperature differences. The article shows the development of a semi-analytical expression for the velocity distribution in the vicinity of the floor. It is shown that openings between obstacles placed direct on the floor will generate a flow similar to the air movement in front of a diffuser. A semi-analytical equation for the velocity distribution is also given in the article. (au) (13 refs.)
Authors:
Publication Date:
Feb 01, 1994
Product Type:
Technical Report
Report Number:
AUC-IBT-R-9403
Reference Number:
SCA: 320107; PA: DK-94:001745; EDB-95:014395; SN: 95001301492
Resource Relation:
Other Information: PBD: Feb 1994
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; VENTILATION SYSTEMS; VELOCITY; AIR FLOW; THERMAL COMFORT; DISTRIBUTION FUNCTIONS; DIFFUSERS; 320107; BUILDING SYSTEMS
OSTI ID:
10105208
Research Organizations:
Aalborg Universitetscenter (Denmark). Inst. for Bygningsteknik
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE95723847; TRN: DK9401745
Availability:
OSTI; NTIS
Submitting Site:
DK
Size:
23 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Nielsen, P V. Velocity distribution in a room with displacement ventilation and low-level diffusers. Denmark: N. p., 1994. Web.
Nielsen, P V. Velocity distribution in a room with displacement ventilation and low-level diffusers. Denmark.
Nielsen, P V. 1994. "Velocity distribution in a room with displacement ventilation and low-level diffusers." Denmark.
@misc{etde_10105208,
title = {Velocity distribution in a room with displacement ventilation and low-level diffusers}
author = {Nielsen, P V}
abstractNote = {The article describes experiments with wall-mounted air terminal devices. The airflow from an air terminal device will influence the occupants` thermal comfort and it is therefore important to develop an expression for this flow. The velocity at the floor is influenced by the flow rate to the room, by the temperature difference and the type of diffuser. The flow is stratified at large temperature differences. The article shows the development of a semi-analytical expression for the velocity distribution in the vicinity of the floor. It is shown that openings between obstacles placed direct on the floor will generate a flow similar to the air movement in front of a diffuser. A semi-analytical equation for the velocity distribution is also given in the article. (au) (13 refs.)}
place = {Denmark}
year = {1994}
month = {Feb}
}