Modelling of rooms with active chilled beams
Journal article, 2020

Active chilled beams (ACBs) are often modelled as generic cooling devices. Due to induction, the air flow discharged from an ACB is several times higher than supplied from the air handling unit, and due to its design, it affects the temperature of the ceiling to a greater extent than an arbitrary cooling device. This paper investigates the impact of taking these features into account when simulating air and operative temperature in a room equipped with an ACB. The building performance simulation software IDA ICE is used for analysis and the simulations are compared with full-scale experiments. The main findings are that simulations which take into account the features mentioned above correspond more closely with measurements. If designing for a certain operative temperature, this reduces the required design cooling capacity. Although negligible in many applications, the magnitude of this reduction is 9% with high-temperature cooling.

CHTC

Active chilled beams

measurements

induction ratio

IDA ICE

Author

Peter J Filipsson

CIT Energy management AB

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Anders Trüschel

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Jonas Gräslund

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Skanska

Jan-Olof Dalenbäck

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Journal of Building Performance Simulation

1940-1493 (ISSN)

Vol. 13 4 409-418

Self-Regulating Active Chilled Beams

Development Fund of the Swedish Construction Industry (SBUF), 2013-05-01 -- 2016-12-31.

Subject Categories

Civil Engineering

Areas of Advance

Energy

DOI

10.1080/19401493.2020.1752801

More information

Latest update

9/4/2020 8