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논문 기본 정보

자료유형
학술대회자료
저자정보
Abiola Samuel Ajayi (Hanbat National University) Yun Rin (Hanbat National University)
저널정보
대한설비공학회 대한설비공학회 학술발표대회논문집 대한설비공학회 2023년도 동계학술발표대회 논문집
발행연도
2023.11
수록면
203 - 206 (4page)

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초록· 키워드

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This study contains data from several articles gathered, to create a statistical model that would be utilized to predict a condensation heat transfer and pressure drop model, a total of 966 condensation heat transfer coefficients and a total of 678 pressure drop data were collected. The applied operating range is 0.1-0.95 reduced pressure, 75-700 kg·m<sup>-2</sup>s<sup>-1</sup> of mass flux, and an inner diameter of 3.4-12.5 mm. The present models were developed based on non-dimensionless parameters like the Two-phase multiplier (Φ<sub>𝑙𝑜</sub>²) , Bond number (𝐵𝑜), Weber number (𝑊𝑒) and the Martinelli parameter (𝑋<sub>𝑡𝑡</sub>), along with regression coefficients, for the frictional pressure drop, and for the condensation heat transfer coefficient a total error of ±29.6% and the data was further divided into 2 groups Pr < 0.5 ±21.2%, for reduced pressure less than 0.5 and Pr > 0.5 ±26.3%, for reduced pressure greater than 0.5 as shown in Table 2 below. In the case of the pressure drop correlation, a total error rate of ±32.6% was shown and the data was further divided into 3 units: Pr < 2 ±24.6%, Pr < 3 ±35.6% for reduced pressure less than 2 and 3 and ±27.8% for the case where the reduced pressure was larger than 5 as shown in Table 3 below. It was developed using the mat-lab regression analysis to improve the usefulness of this discovered correlation.

목차

Abstract
1. Introduction
2. Method
3. Results and discussions
4. Conclusion
References

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