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Ductless task air-conditioning


Law, T and Sargison, J and Fay, M and Banbury, S, Ductless task air-conditioning, ASHRAE Transactions, 118, (1) Article CH-12-C047. ISSN 0001-2505 (2012) [Refereed Article]

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Copyright 2012 ASHRAE

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Task-ambient conditioning (TAC) systems have proven success in reducing power consumption, improving thermal comfort and enhancing air quality. However, the adoption of TAC has, however, been generally slow. We propose an improvement to TAC systems by disconnecting them from the central air-handler, effectively making them ductless. The Ductless Task Air- Conditioner (DTAC) utilises thermoelectric modules and phase change materials for heat exchange and heat sink respectively. Prototypes of DTAC have been developed concurrently with test regimes for the proof of concept. The paper also presents the technical studies performed on the prototypes to show its capability and limitations. Whilst still in its early stages, DTAC shows promise for delivering supplementary air-conditioning to office occupants, conserving overall airconditioning by allowing the central air-conditioner to have a higher temperature set-point and increasing occupant thermal comfort by allowing them to have direct control over their immediate thermal environment.

Item Details

Item Type:Refereed Article
Keywords:air-conditioning, thermal comfort, innovation
Research Division:Built Environment and Design
Research Group:Architecture
Research Field:Architectural science and technology
Objective Division:Energy
Objective Group:Energy efficiency
Objective Field:Commercial energy efficiency
UTAS Author:Law, T (Dr Tim Law)
UTAS Author:Sargison, J (Dr Jane Sargison)
UTAS Author:Fay, M (Professor Roger Fay)
ID Code:83061
Year Published:2012
Deposited By:Architecture
Deposited On:2013-02-28
Last Modified:2017-11-06
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