Malki-Epshtein, Liora;
Wild, Oliver;
Adzic, Filipa;
Torero, José L;
(2024)
Generating Thermal Stratification in the Controlled Active Ventilation Environment Laboratory (CAVE).
Presented at: Indoor Air 2024, Honolulu, HI, USA.
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Abstract
A large-scale facility with bespoke HVAC systems was used to generate a high-gradient thermal stratification in a space of ceiling height 9.5m by controlling supply temperatures at high level to 28°C and at low levels to 10.5°C. The resulting stratification was monitored at high spatial and temporal resolution and it was found that mixing processes diffuse the gradient until eventually a stable stratification ranging from 14 to 22°C is maintained. The experiment illustrates the buoyancy effects that serve to create and disrupt temperature distribution and ventilation in large spaces, and the performance gap between design and operation.
| Type: | Conference item (Presentation) |
|---|---|
| Title: | Generating Thermal Stratification in the Controlled Active Ventilation Environment Laboratory (CAVE) |
| Event: | Indoor Air 2024 |
| Location: | Honolulu, HI, USA |
| Dates: | 07 - 11 July 2024 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://indoorair2024.org/ |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Building ventilation, Indoor Air Quality, HVAC, Fluid Mechanics, Experimental Facilities, Laboratory |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10198604 |
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