한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)
- 제4권4호
- /
- Pages.395-401
- /
- 2001
- /
- 1226-833X(pISSN)
- /
- 2765-5415(eISSN)
와이어 코일이 삽입된 나선형 내면가공관의 열전달 및 압력강하 특성
Characteristics of Heat Transfer and Pressure Drop for Spirally Indented Tubes with Wire Coil Inserts
- Choi, In-Su (School of Mechanical Engineering Sangju National University) ;
- Park, Byung-Duck ;
- Nam, Sang-Chul
- 투고 : 2001.09.15
- 심사 : 2001.11.26
- 발행 : 2001.11.30
초록
The characteristics of heat transfer and pressure drop through tubes has been investigated experimentally for a compound heat transfer enhancement. The test tubes were spirally indented tubes with wire coil inserts which had a various combinations of pitch and helix angles. Pure water was used as working fluids for the experiments, Heat transfer coefficients and friction factors of the test tubes were evaluated from the values of measured temperatures, flow rates and pressure drops. An performance evaluation was performed to find an optimal combination of spirally indented tubes with wire coil inserts. When the helix angle of wire coil insert are
키워드