- 태양열 적용을 위한 열음향 레이저의 특성 비교 연구
- ㆍ 저자명
- 박성식,안응진,오승진,천원기,김남진,Park. Sung-Seek,An. Eoung-Jin,Oh. Seung-Jin,Chun. Won-Gee,Kim. Nam-Jin
- ㆍ 간행물명
- 한국태양에너지학회 논문집
- ㆍ 권/호정보
- 2012년|32권 2호|pp.105-112 (8 pages)
- ㆍ 발행정보
- 한국태양에너지학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The conversion of solar energy into acoustic waves is experimentally studied. Measurements were made on the Sound Pressure Level (SPL), frequency, onset time and the temperature gradient across the stack. A pyrex resonance tube is used with a honey-comb structure ceramic stack along with Ni-Cr and Cu wires. An AL1 acoustical analyzer was used to measure the SPL and frequency of acoustic waves whereas K-type thermocouples were hired to estimate temperature gradients. For a resonance tube of 100 mm, no acoustic waves were generated with a power input of 25W. By increasing its length to 200 mm, however, maximum SPLs of 96.4 dB, 106.3 dB and 112.8 dB were detected for the tubes of 10mm,20mm and 30mm in IDs and their respective stack positions of 70mm, 60mm and 50mm from the closed end.