SET Proceedings 2978-4387 Caravel Press 10.65582/set.2003.045 2003.045 Model experiment on stratified air-conditioning in winter condition in High ceiling industrial plants YangLulu HeTianqi LiXiaofeng XiongHanlin Faculty of Urban Construction and Environment, Chongqing University, Chongqing 400045, P.R.China 24102003 2 1 978-1-995850-10-8 198 201 © 2003 Copyright WSSET 2003

Engineering practices indicate that stratified air-conditioning used in high industrial plants has been proved to be good and energy-saving, but its application to winter heating condition is restricted due to the buoyant warm jet. By using model experiment, the temperature and velocity diffusion within the model when heating with transversal warm air curtain have been measured and analyzed. By measuring the temperature and velocity diffusion within the space in winter condition, whether the temperature at work area could be maintained above 14oc has been shown; By measuring the temperature gradient in whole space, whether the buoyant warm jet has been effectively controlled has been observed; By sealing or unsealing the exhaust outlet on the roof, the influence of air leak on air diffusion performance in occupied are has been observed; thus providing some experiences to other projects.

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