Field experiment of the measures to control the stack effect in stairwell of building

Abstract

In a high-rise building, stack effect occurs through a vertical passage, such as stairwell or elevator shaft due to a difference in indoor-to-outdoor temperature in winter and summer. Since this stack effect leads to adverse effects in terms of residential environment, energy and disaster prevention, there is a need to come up with the measures to control the pressure difference caused by the stack effect. In a recent research, a circulation-type stack effect control device for performing air supply and exhaust using a blower and a vertical airduct has been proposed as a method for active and quantitative control of the stack effect. In this study, useful measures that can control the stack effect in the stairwell of a high-rise building were developed through field experiments in a situation where the stack effect occurs, and the feasibility of the proposed stack effect control technique was reviewed through a full-scale experiment in the actual building during he winter season.