مقاله انگلیسی رایگان در مورد مدلسازی ضریب انتقال حرارت برای تغییر صعودی – الزویر 2020

 

مشخصات مقاله
ترجمه عنوان مقاله مدلسازی ضریب انتقال حرارت برای تغییر صعودی بدون فاز و جریان دو فازی در لوله های شیب دار
عنوان انگلیسی مقاله Modeling of heat transfer coefficient for upward no-phase-change two-phase flow in inclined pipes
انتشار مقاله سال 2020
تعداد صفحات مقاله انگلیسی 16 صفحه
هزینه دانلود مقاله انگلیسی رایگان میباشد.
پایگاه داده نشریه الزویر
نوع نگارش مقاله
مقاله پژوهشی (Research Article)
مقاله بیس این مقاله بیس نمیباشد
نمایه (index) Scopus – Master Journals List – JCR
نوع مقاله ISI
فرمت مقاله انگلیسی  PDF
ایمپکت فاکتور(IF)
4.554 در سال 2019
شاخص H_index 129 در سال 2020
شاخص SJR 1.769 در سال 2019
شناسه ISSN 1359-4311
شاخص Quartile (چارک) Q1 در سال 2019
مدل مفهومی ندارد
پرسشنامه ندارد
متغیر ندارد
رفرنس دارد
رشته های مرتبط مهندسی مکانیک
گرایش های مرتبط مکانیک سیالات، تاسیسات حرارتی و برودتی
نوع ارائه مقاله
ژورنال
مجله  مهندسی حرارت کاربردی – Applied Thermal Engineering
دانشگاه  South China University of Technology, China
کلمات کلیدی تغییر بدون فاز جریان دو فازی، ضریب انتقال حرارت، عدد ناسلت، لوله شیب دار، آنالوژی چیلتون- کولبورن
کلمات کلیدی انگلیسی No-phase-change two-phase flow, Heat transfer coefficient, Nusselt number, Inclined pipe, Chilton-Colburn analogy
شناسه دیجیتال – doi
https://doi.org/10.1016/j.applthermaleng.2020.114921
کد محصول E14173
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فهرست مطالب مقاله:
Abstract

1. Introduction

2. Literature survey on existing database and correlations of heat transfer coefficient for upward no-phase-change two-phase flow in inclined pipes

3. Development of heat transfer multiplier correlation for upward two-phase flow in inclined pipes

4. Performance evaluation of the newly-developed two-phase heat transfer coefficient correlation for upward two-phase flow in inclined pipes

5. Conclusions

Acknowledgement

Appendix

References

بخشی از متن مقاله:

Abstract

This study aims at developing a robust and theoretically-supported correlation of two-phase heat transfer coefficient for upward no-phase-change two-phase flow in inclined pipes based on the concept of extended Chilton-Colburn analogy. Firstly, a comprehensive literature survey was conducted to gather over 1800 experimental data and 12 correlations of two-phase heat transfer coefficient. The comparison results indicated that none of the existing correlations could predict the entire database satisfactorily. Then, the dependence of twophase heat transfer enhancement ratio (or two-phase heat transfer multiplier) on liquid fraction, two-phase pressure drop multiplier and inclination angle was analysed, and the two-phase heat transfer coefficient correlation was developed. The performance assessment indicated that the newly-developed correlation could predict 95% of the experimental data within ± 30% error with the mean absolute relative deviation of 12.9%. The newly-developed semi-theoretical correlation would be useful in designing no-phase-change two-phase heat transfer systems, such as petroleum pipelines and nuclear power plants.

Introduction

Upward no-phase-change two-phase flow in inclined pipes has extensive industrial and engineering applications in petroleum pipelines, chemical reactors and nuclear power plants [1]. Various flow patterns such as bubbly flow, intermittent flow, stratified flow and annular flow, occur in inclined pipes depending on different flow conditions [2]. Due to the significant interaction between gas and liquid phases, the flow characteristics of upward no-phase-change two-phase flow in inclined pipes are complicated. The thermal characteristics of no-phase-change two-phase flow in inclined pipes is attracting more and more attention recently. Substantial efforts have been made on understanding the flow and heat transfer characteristics of upward no-phase-change two-phase flow in inclined pipes.

Hetsroni et al. [3] investigated the local heat transfer coefficient of upward air-water flow in inclined pipes and claimed that the pipe inclination enhanced two-phase heat transfer. Mosyak and Hetsroni [4] also measured the temperature difference between the top and bottom of a horizontal pipe and slightly inclined pipes, and found that increasing pipe inclination could drastically reduce the temperature difference. Vaze and Banerjee [5] studied the effect of pipe inclination on flow and heat transfer characteristics of air-water two-phase flow experimentally. Trimble et al. [6] conducted experimental study on heat transfer characteristics of upward two-phase slug flow in inclined pipes.

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