| タイトル | Determination of optimum fin profile for a zero-G capillary drained condenser |
| 著者（英） | Mccormick, John A.; Valenzuela, Javier A.; Choudhury, Dipanker |
| 著者所属（英） | Creare, Inc. |
| 発行日 | 1990-06-01 |
| 言語 | eng |
| 内容記述 | This paper presents the analytical formulation and numerical results for heat transfer in a high heat flux condenser that relies on capillary flow along shaped fins (Gregorig surfaces) and a drainage network embedded in the condenser walls. Results are shown for a variety of fin profile shapes in order to show the geometric trade-offs involved in seeking a maximum effective heat transfer coefficient for the fin. Predictions of the model show excellent agreement with previously reported measurements for steam. Based on this work, a profile has been selected for a 2 kW ammonia condenser currently under development for use in space. In that design the fin half width is 0.5 mm and the model predicts a heat transfer coefficient referred to the base of the fin of 9 W/sq cm deg C for a heat flux of 10/W sq cm at the base. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 90A38389
AIAA PAPER 90-1686 |
| 権利 | Copyright |
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