Energy saving, indoor thermal comfort and indoor air quality evaluation of an office environment using corner impinging jet ventilation

The performance of a corner based impinging jet ventilation system (CIJV) in an office environment was evaluated numerically. The evaluation was done both in terms of the local thermal comfort and the local indoor air quality. Three different inlet configurations were tested for a range of outdoor temperatures that included both winter and summer conditions. In terms of indoor air quality, the results showed that CIJV performed better than a traditional mixing system. The study also revealed that CIJV creates a stronger temperature stratification in summertime compared to wintertime. When evaluating the energy saving potential the results showed a possible reduction of 7% for the ventilation flowrate when the outdoor temperatures were between -15 & DEG;C and -5 & DEG;C, 8% when the outdoor temperatures were between 0 & DEG;C and 10 & DEG;C and 9% when the outdoor temperatures were between 15 & DEG;C and 25 & DEG;C.

Automated summary

The performance of a corner based impinging jet ventilation system (CIJV) in an office environment was numerically evaluated, considering both local thermal comfort and indoor air quality. The results showed that CIJV outperforms a traditional mixing system in terms of indoor air quality. It was also found that CIJV creates a stronger temperature stratification in summertime compared to wintertime. The energy saving potential of CIJV was assessed, and a possible reduction of 7%, 8%, and 9% in ventilation flowrate was observed for different outdoor temperature ranges.