Solar Energy (태양에너지)
- Volume 10 Issue 1
- /
- Pages.38-46
- /
- 1990
- /
- 0253-3103(pISSN)
Performance Analysis of a Vertical Double Pipe Heat Exchanger for Latent Heat Storage
수직이중관형 잠열축열장치의 성능분석
- Kim, Young-Bok (Gyeong Sang National University) ;
- Song, Hyun-Kap (Chungbuk National University)
- Published : 1990.03.31
Abstract
For the optimal design and the efficient operation of the double pipe type latent heat storage equipment, the effect of the parameters of the system were analysed. The statistical analysis showed that the theoretical and the experimental results of the volume change rate and the temperature variations were well agreed. Therefore, this theoretical model is reasonable to analyze two dimensional moving boundary problems. In the analysis of the effects of the parameters, the heat extraction fraction and the water outlet temperature of the system as function of the time were analysed depending on the initial temperature of PCM, water inlet temperature, water mass flow rate and the dimension of the inner tube.
고밀도 잠열축열장치의 최적설계와 효율적인 작동을 위해서는 그 전열특성과 축열효율이 규명되어야 한다. 본 연에서는 수직이중관형 잠열축열장치의 방열과정에서의 전열특성을 이론 및 실험적으로 분석하였으며 두 결과는 잘 일치하였다. 그리고 컴퓨터 시뮬레이션을 통하여 방열효율에 대한 설계 및 작동피라미터의 영향을 분석하였다.
Keywords