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    초록·키워드

    In this study, a sirocco fan was designed by traditional design method, DOE (design of experiments) and CFD. Several design parameters, such as blade angle, volute width, volute expansion angle, impeller meridional shape, impeller width, etc, were set up. The measured performance curve of the basic design model was compared with predicted results for the validation of numerical models. To change the slope of the fan performance curve, volute expansion angle, tongue angle and expansion angle of the volute discharge part were selected as design variables. As a result, the final design model gives a lower maximum discharge flow rate as compared to the basic model. The steep characteristic of the performance curve is favorable for the design of motors in the constant air volume fan.

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      UCI(KEPA) : I410-ECN-0101-2010-554-002515122