chimney effect

chimney effect

[′chim‚nē i′fekt]
(fluid mechanics)
The tendency of air or gas in a vertical passage to rise when it is heated because its density is lower than that of the surrounding air or gas.

chimney effect, flue effect, stack effect

The tendency of air or gas in a shaft or other vertical passage to rise when heated, owing to its lower density compared with that of the surrounding air or gas.
References in periodicals archive ?
There is a ceramic 'Belfast' style sink with mixer tap, and a feature brick chimney effect wall housing a range style cooker.
Dr Knapton said if this isn't done and a fire breaks out that gap could create a flue or chimney effect up which the fire could rush.
The effect of infiltration on heating load has been simulated including chimney effect and varying wind environment.
Displacement ventilation is on the horizon for retailers," he predicts, explaining that a floor-level diffuser the length of a wall or a refrigeration case pushes a tremendous amount of air out at low velocity so that the air pools out onto the store floor, creating a chimney effect that takes the warmer air up and above shoppers, while the cooler air at floor level allows the refrigeration equipment to operate more efficiently and maintain a comfortable shopping environment.
This clearance creates a chimney effect to move heat away from the refrigerator.
It started under the stairs and travelled upwards, like a chimney effect.
Because of stack pressure and the chimney effect, swing doors can also be difficult to open, Thomas adds.
Waterproof storm vents allow for the active circulation of air even in the wettest conditions, with side and front and back yoke vents creating a chimney effect that allows cool air in and humid air to escape.
The holes will create] a chimney effect because it will be very hot and it will rise through the opening.
The candle generates a soft suction which creates a chimney effect vibrating the air near the ear drum and so giving it a gentle massage.
Chimney effect creates pressure and the hot gas is transported through the height difference.