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Optimization on the performances of a novel bed-based task/ambient conditioning (TAC) system
- Source :
- Energy and Buildings. 144:181-190
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- The use of task/ambient conditioning (TAC) systems can help improve thermal comfort and indoor air quality, and reduce the energy consumption in bedrooms in residences or guestrooms in hotels at nighttime for sleeping. However, its operational and energy saving performances would be affected by a number of factors, such as supply air flow rate and temperature, and supply vane angles. This paper reports on optimizing numerically the operating performances of a novel bed-based TAC system. Firstly, the methods on a novel bed-based TAC system are introduced, including the experimental method and the computational method. Secondly, the numerical model is validated using the experimental results at the experimental operating conditions. Thirdly, the operating performances of the novel bed-based TAC systems at non-experimental operating conditions using the validated numerical model are optimized and the results reported. Finally, the conclusion and limitations of the study are given. The numerical study results showed that by suitably controlling its supply air flow velocity and temperature, and supply vane angle, the bed-based TAC system can be operated to maintain an acceptable level of thermal comfort without the cold draft in an occupied zone at a low energy consumption.
- Subjects :
- Engineering
business.industry
Mechanical Engineering
05 social sciences
Airflow
Thermal comfort
ComputerApplications_COMPUTERSINOTHERSYSTEMS
030229 sport sciences
Building and Construction
Energy consumption
03 medical and health sciences
Task (computing)
0302 clinical medicine
Indoor air quality
Air flow rate
Conditioning
0501 psychology and cognitive sciences
Electrical and Electronic Engineering
business
050107 human factors
Energy (signal processing)
Simulation
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 03787788
- Volume :
- 144
- Database :
- OpenAIRE
- Journal :
- Energy and Buildings
- Accession number :
- edsair.doi...........f1d4981ecd7b92e646aad13454389223