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논문 기본 정보

자료유형
학술대회자료
저자정보
Seung Jin Oh (Korea Institute of Industrial Technology (KITECH)) Yong Woo Yang (Korea Institute of Industrial Technology (KITECH)) Yoon Jung Ko (Korea Institute of Industrial Technology (KITECH))
저널정보
대한설비공학회 대한설비공학회 학술발표대회논문집 대한설비공학회 2021년도 하계학술발표대회 논문집
발행연도
2021.6
수록면
1,061 - 1,064 (4page)

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This study presents the numerical modeling and the simulation of a counter-flow indirect evaporative cooler (IEC) that is thermodynamically multi-staged in order to maximize its performance. The proposed indirect evaporative cooler is basically a stack of identical IEC modules. The working principle is such that a certain portion of the dry air at the outlet of the first module is purged into the wet channel of the next module that is located underneath and the remaining is transferred to the dry channel. A series of simulation was conducted to investigate the performance of the multi-stage IEC The developed model was validated against experimental data within 2% discrepancy. Key results revealed that the proposed multi-stage counter-flow IEC produced higher cooling capacity (around 20% higher), as well as higher dew-point effectiveness under the same operating conditions. A parametric study was also made in order to find optimal operating conditions as well as optimal dimension. The results revealed that lower product air temperature and higher dew-point effectiveness were achieved with longer channel length and larger purge ratio. However, the maximum cooling capacity approached its maximum with longer channel length and 35% purge ratio.

목차

Abstract
1. Introduction
2. Mathematical model for IEC
3. Results
References

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