한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2005년도 추계학술대회논문집
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- Pages.662-665
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- 2005
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- 1598-2548(pISSN)
천장형 시스템 에어컨의 음향 특성
Acoustical Characteristics of System Air Conditioners Installed in the Ceiling
- 발행 : 2005.11.01
초록
In this study acoustical characteristics of system air conditioner in different ceiling systems was investigated in anechoic and real conditions. Same Types of air conditioners were installed in two different rooms. The results showed that motor's tonal component was emphasized at near fart of air blast blower in the exposed type while fan's harmonic component is emphasized rather in the enclosed type. This confirms tile result of acoustical intensity mapping which showed that Intensity level of 125Hz octave band increased in the exposed type while there was no noticeable difference at the frequency band in the enclosed type.
키워드