ライブラリ登録: Guest
ホーム アーカイブ Thermal Letter 役員 今後の会合 国際伝熱会議の集会
International Heat Transfer Conference 7

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

LUMPED PARAMETER ANALYSIS OF TWO-PHASE FLOW INSTABILITIES

T. Dogan
EDS Nuclear, Inc., SED SanFrancisco, California, U.S.A.

Sadik Kakac
Department of Mechanical Engineering,TOBB University of Economics and Technology, Ankara-Turkey; and LIPING CAO, Westinghouse Electric Company, LLC, PA; and Department of Mechanical Engineering, University of Miami, Florida - USA

T. Nejat Veziroglu
University of Miami, Miami, FL

DOI: 10.1615/IHTC7.4420
pages 213-218

要約

A numerical model is developed to predict both the steady state and transient behavior of forced-convection boiling two-phase flow in a single channel. The model is based on the assumption of homogeneous two-phase flow and thermodynamic equilibrium of the two phases.Compressibility effects in the two-phase region, motion of the bulk boiling interface and the thermal capacity of the heater wall have been included in the analysis. The model is used to study the effects of heat input, inlet subcooling and flow rate on the system behavior. For comparison purposes, an experimental investigation was conducted using a single channel, electrically heated, forced-convection upflow system. Steady state operating characteristics and stable and unstable regions are determined as a function of heat flux, inlet subcooling and mass flow rate. Different modes of oscillations and their characteristics have been investigated. The predictions of the model are in good agreement with the experimental results.

購入する $25.00 Check subscription 出版倫理および不正行為 私の図書館員へ推薦 このページをブックマークする