| 요약2 |
Generally residential kitchen hood has been used to remove the airborne grease, combustion products, fumes, smoke, odors, heat, and moisture from the air by evacuation of the air and filtration. This ventilation equipment is containing a mechanical exhaust fan that hangs above the stove or cooktop in the kitchen. Previous research indicates that kitchen hood use is infrequent mainly due to the noise problem. To solve this noise problem, it is necessary to analyze the sound level and characteristics of sound spectrum at first. The purpose of this study is to analyze noise characteristics of residential kitchen hood and to evaluate the noise criterion according to the dB(A), PSIL, NC, and NR. For this, in-depth interview with questionnaire was conducted for the better understanding of current operation status of kitchen hood. And field measurements of noise level were conducted at 15 cases in residential building. In results, sound pressure level is around 51.1~66.2dB(A). Sound pressure level on each frequency is irregular in the lower range and gradually decrease in the higher range. |