Hydraulic and Heated Equivalent Diameters Used in Heat Transfer Correlations

Juliana P. Duarte; Michael L. Corradini

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Hydraulic and Heated Equivalent Diameters Used in Heat Transfer Correlations

机译：传热相关中使用的液压和加热等效直径

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Hydraulic and heated equivalent diameters are approximations to account for different flow geometries in thermal-hydraulic analyses. Most of the empirical models used in single- and two-phase flow heat transfer are based on experiments in heated tubes and extrapolated to complex geometries by means of the equivalent diameters. For heat transfer calculations, as a general rule, the heated equivalent diameter must be used for bundle geometries and the hydraulic equivalent diameter for annulus geometries. The use of both diameters in different correlations is discussed and clarified in this technical note.

机译：水力和加热当量直径是近似值，以说明热工水力分析中不同的流动几何形状。单相和两相流传热中使用的大多数经验模型都是基于加热管中的实验，并通过等效直径外推到复杂的几何形状。通常，对于传热计算，必须将加热等效直径用于管束几何形状，并将水力等效直径用于环空几何形状。在本技术说明中讨论并阐明了两种直径在不同关联中的使用。

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来源
《Nuclear Technology》 |2018年第1期|99-102|共4页
作者
Juliana P. Duarte; Michael L. Corradini;
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作者单位

University of Wisconsin-Madison, Department of Engineering Physics, 1500 Engineering Drive, Madison, Wisconsin 53711;

University of Wisconsin-Madison, Department of Engineering Physics, 1500 Engineering Drive, Madison, Wisconsin 53711;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Hydraulic equivalent diameter; heated equivalent diameter; heat transfer coefficient;

机译：水力当量直径;加热当量直径;传热系数;

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专利

1. CRITICAL HEAT FLUX DURING NATURAL CIRCULATION BOILING ON UNIFORMLY HEATED OUTER TUBE IN VERTICAL ANNULAR TUBES SUBMERGED IN SATURATED LIQUID (CHANGE IN CRITICAL HEAT FLUX CHARACTERISTICS DUE TO HEATED EQUIVALENT DIAMETER) [J] . MASANORI MODE, YUICHI MITSUTAKE, MASANORI HAYASI International Journal of Heat and Mass Transfer . 1999,第16期

机译：浸没在饱和液体中的垂直环形管中均匀加热的外管上自然循环沸腾过程中的临界热通量（由于等效加热直径而导致的临界热通量特性变化）
2. Heat transfer and hydraulic resistance of supercritical pressure coolants. Part Ⅳ: Problems of generalized heat transfer description, methods of predicting deteriorated heat transfer; empirical correlations; deteriorated heat transfer enhancement; dissolved gas effects [J] . V.A. Kurganov, Yu.A. Zeigarnik, I.V. Maslakova International Journal of Heat and Mass Transfer . 2014,第octa期

机译：超临界压力冷却剂的传热和水力阻力。第四部分：广义传热描述的问题，传热恶化的预测方法；经验相关传热增强变差；溶解气体效应
3. Heat transfer and hydraulic resistance of supercritical pressure coolants.Part Ⅲ: Generalized description of SCP fluids normal heat transfer, empirical calculating correlations, integral method of theoretical calculations [J] . V.A. Kurganov, Yu.A. Zeigarnik, I.V. Maslakova International Journal of Heat and Mass Transfer . 2013,第deca期

机译：超临界压力冷却剂的传热和水力阻力。第三部分：SCP流体正常传热的一般描述，经验计算相关性，理论计算的积分方法
4. FUNDAMENTAL HEAT TRANSFER CORRELATIONS FOR NATURAL CONVECTION FROM A UNIFORMLY HEATED VERTICAL PLATE [C] . Orhan Aydm, Laila Guessous The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York . 2001

机译：均匀加热的垂直平板中自然对流的基本传热相关性
5. Heat transfer experiments and general correlation for sprays of very large droplets impinging on a heated surface. [D] . Cox, Timothy L. 1998

机译：撞击在加热表面上的超大液滴喷雾的传热实验和一般相关性。
6. Numerical Analysis on Heat Transfer Characteristics of Supercritical CO2 in Heated Vertical Up-Flow Tube [O] . Chenshuai Yan, Jinliang Xu, Bingguo Zhu, 2020

机译：垂直竖向加热管中超临界CO2传热特性的数值分析
7. Heat transfer mechanism behind heated circular cylinders with various cylinder diameters. [O] . Hajime FUSE, Shuichi TORII, Yoshihiro KONDO 1991

机译：加热圆柱体背后的传热机制，具有各种气缸直径。

Hydraulic and Heated Equivalent Diameters Used in Heat Transfer Correlations

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