LO-09-030 -- In-Situ Performance of Stratified Air Distribution Systems in Two Canadian Buildings PDF

This paper presents the assessment of stratified air distribution systems based on measurements of thermal comfort and ventilation effectiveness, during the winter, spring and summer of 2008. The Displacement Ventilation (DV) system, installed in an auditorium, uses low velocity sidewall diffusers. The Underfloor Air Distribution (UFAD) system, installed in a large public library, uses swirl type floor diffusers. In-situ monitoring of thermal parameters has been carried out following the ASHRAE Standard 113-2005. In addition, a survey of occupants’ comfort was performed. The overall performance of both ventilation systems is good and consistent with typical stratified system performance indicators.

Units: SI