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水平管内分层湿润角与周向传热分布
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Indexed by: 期刊论文

Date of Publication: 2014-03-15

Journal: 热科学与技术

Included Journals: PKU、ISTIC、CSCD

Document Type: J

Volume: 13

Issue: 1

Page Number: 10-14

ISSN No.: 1671-8097

Key Words: 湿润角;传热系数;分层流;波状分层流

Abstract: 实验研究了不同当地蒸汽质量流速Gs 和凝结液质量流速下,水平管内凝结液湿润角和管圆周方向传热系数的变化规律。研究发现,在一定蒸汽入口流量下,随着凝结速的增加,湿润角增加速度先快后慢,然后在低蒸汽流量下又变快;形成波状分层流时所需的Gs 随着凝结液质量流速的增加而增加;波状分层流时,凝结液侧的传热系数平滑的变化到蒸汽侧传热系数。

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