Displacement ventilation system (hereafter DV system) is suitable for electrical commercial kitchens because DV system does not disturb thermal plume over electrical cooking equipment. This paper showed experimental results on DV system with a laboratory room in which three cooking equipments i.e. electrical fryer, griddle and range, and an exhaust hood above them were installed. In this paper, the influence of disturbance due to cooking operation on indoor environment, the effects of side panels of an exhaust hood and a ceiling exhaust opening were examined. DV system with ceiling mounted supply openings was also studied. This DV system is compared with general DV system with wall mounted supply openings and local air conditioning system which is very popular in Japanese kitchens.
