Research on Regulation Method of Variable-Air-Volume Air Conditioning System with “Personal Space”

In large public facilities, such as airport terminals or open-plan office spaces, the HVAC system typically consumes substantial amounts of energy. However, individuals often gather at specific areas while other zones are occupied by transient or occasional users. To minimize operational energy usag...

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Bibliographic Details
Published in:Energies (Basel) 2024-10, Vol.17 (20), p.5041
Main Authors: Chen, Tingting, Zhang, Mingyuan, Han, Shaoqing, Han, Yuhang
Format: Article
Language:English
Subjects:
Air conditioning
airflow distribution
Airport terminals
Analysis
Boundary conditions
Cooling
Energy consumption
Equipment and supplies
Heat
HVAC
Methods
Neural networks
Order quantity
personal space
Physiology
Simulation
thermal environment evaluation index
VAV air conditioning system
Velocity
Ventilation
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Summary:In large public facilities, such as airport terminals or open-plan office spaces, the HVAC system typically consumes substantial amounts of energy. However, individuals often gather at specific areas while other zones are occupied by transient or occasional users. To minimize operational energy usage, this paper aims to reduce thermal comfort demands in non-targeted areas. This paper introduces a method for regulating the thermal environment around occupants exclusively in the variable-air-volume (VAV) air conditioning running mode. The investigation utilizes Airpak modeling and experimental verification techniques. Additionally, an analysis of temperature field and velocity field distributions within the room under the “personal space” operation mode is presented. The results suggest that adjusting the numbers of air vents, openings, airflow velocities, and air supply orientations can establish a comfortable thermal environment for inhabitants and reduce the overall ADPI value. The combined air supply mode leads to a 16.7% reduction in power usage compared to traditional full-space operation.
ISSN:1996-1073
1996-1073
DOI:10.3390/en17205041