- 作者: 黃秉鈞; 薩來亞
- 作者服務機構: 國立臺灣大學機械工程學系
- 中文摘要: 本文主要以一維理論研究自然循環環路穩定流之熱性能。研究結果顯示環路的穩態性能與加熱及冷卻速率,環路摩擦阻力,加熱器與冷卻器之相對高度等因素有關。本文以數值法對暫態熱傳性能進行分析以瞭解其達到穩定流的暫態過程。實驗結果顯示上述之一維理論分析可以正確預測自然循環環路穩定流之穩態熱性能。本研究亦發現,穩態流速受兩個無因素參數,Y與P,所控制。
- 英文摘要: The thermal performance of a rectangular thermosyphon loop with stable flow was studied analy-tically and experimentally. The analysis used a 1-D approximation and the conventional friction factorcorrelation. However, for the combined convection and the overall heat transfer in the cooler, new correla-tions were experimentally derived and used in the analysis. The experimental measurements have shownthat the present analysis can accurately predict the loop performance at steady states or approaching steadystates. The steady-state loop circulating velocity was also analytically shown to be uniquely a function oftwo characteristic parameters, Y and P.
- 中文關鍵字: thermosyphon loop; natural convection
- 英文關鍵字: --