BOILING ON PLATE FIN AND ANNULAR FIN

This paper for the first time theoretically investigated the heat tran sfer performance and associated stability characteristics of a plate f in or an annular fin subject to boiling. Stability analysis reveals th at in both cases, the N, F, TN and FTN modes are stable; while in the T or TT modes, the operation remains stable only if the fin length is less than some critical value. Plate fin is potentially useful in cons tant heat flux applications. On the basis of the same fin's base area and volume, the annular fin can deliver more heat and provide wider op erational range of base superheat. (C) 1998 Elsevier Science Ltd