- Myong Chol Paek & Chol Jin Jon*
- DOI: 10.5281/zenodo.17312085
- GAS Journal of Engineering and Technology (GASJET)
The study on saving energy
is being conducted widely in the ventilation system of industrial building with
high-ceiling.
The mixing ventilation
system (MVS) is less effective for the high-ceiling buildings from the view of
energy saving. The displacement ventilation system (DVS) has a shortcoming when
process equipment with high thermal load is utilized in industrial
building.
In this paper, the
characters of indoor airflow and temperature distribution in hybrid
displacement ventilation system (HDVS) where the vertical supply duct has been
installed on the middle height of the building have been analyzed by
computational fluid dynamics (CFD). And the specific influence of the velocity
of air inflow and the length of the supply duct on the air temperature has been
analyzed, and the existence of the effective length of vertical supply duct in
this system has been discovered from the view of energy saving.
The accuracy of simulated results has been validated comparing with the experimental data. The operation of this system is more cost effective as the temperature of the air in the working zone has decreased 3.2-5.4℃ compared to the MVS.
