Course Information

Course Code

PE 6603

Credit Hours

48

Credits

3

Course Name

（中文）低碳能源多相流输运理论

（英文）Multiphase Transport Fundamentals of Low Carbon Energy

Course Type

专业基础课

Language of Instruction

English

School

China-UK Low Carbon College

Prerequisite

Fluid mechanics, Heat transfer

Teacher

徐会金

Course Webpage

-

* Description

Multiphase transport fundamentals in low carbon energy is the extension and development of basic theories of fluid mechanics, heat and mass transfer, bubble dynamics and other disciplines in the field of low carbon energy. This course can provide an important foundation for improving quality and efficiency in traditional engineering industries such as energy and power, chemical machinery, nuclear science and petroleum engineering with great potential for carbon emission reduction. It can provide theoretical support for utilization and technological progress of new energy with zero carbon emission, and also involves important research contents in carbon negative fields such as carbon capture, utilization and storage. Understanding and mastering relevant discipline knowledge is of great value to the optimization design and operation control of various multiphase fluid equipment, heat exchange equipment and system in the low carbon energy field.

Through this course, students can master the basic concepts and theories of multiphase transport in the low-carbon energy field, be familiar with various engineering problems in this field, master the related engineering calculation methods, and understand the latest research progress. The course content covers basic theory of multiphase flow, flow pattern, resistance calculation, section vapor content, annular flow analysis, flow instability of multiphase flow, enhancement of boiling and condensation heat transfer, and case study of multiphase fluid transfer in the field of low carbon energy.

Course Syllabus

Learning Outcomes

On the basis of a combination of self-study and discussion, reports and assessments required by the course are completed. Related contents should include a general description of the main content in this course, important formula derivation and theoretical overview, solving method, for example, experiment and numerical simulation methods and experimental research technique, main engineering application and development prospect, the main conclusions and learning, such as the content of the book report should pay special attention to combine their research direction and topic.

Class Schedule

& Requirements

The teaching method of this course is classroom lectures and seminars. The information of each section, main content and class hours is as follows:

1. Introduction: concept of phase/two-phase flow/multiphase flow, applications of multiphase flow in low carbon energy field, research purpose and content.

2. Basic theory of two-phase flow: basic parameters and models of gas-liquid two-phase flow in pipes, governing equations of multiphase flow.

3. Flow patterns: classification of flow patterns, flow pattern diagram, flow pattern transition boundary, flow pattern influencing factors, flow pattern research issues.

4. Calculation of resistance of gas-liquid two-phase flow in pipe: introduction, calculation of friction pressure drop, acceleration pressure drop, gravity pressure drop, local resistance.

5. Void fraction: introduction, empirical calculation method of void fraction of section and calculation method based on flow patterns.

6. Analysis of annular flow: establishment and simplification of the triangular relationship among liquid film thickness/velocity/pressure gradient, relation formula of interface roughness, relation formula of deposition rate and liquid entrainment rate, application of triangular relationship.

7. Instability of two-phase flow: classification, occurrence mechanism, overview of characteristics and specific explanation of mechanism of flow instability.

8. Boiling / condensation heat transfer, flow boiling /condensation, and classification of boiling enhancement methods: mechanism of boiling heat transfer, correlation of boiling heat transfer, basic principles of flow boiling / condensation, enhancement methods of boiling heat transfer, condensation classification, film wise condensation analysis, condensation heat enhancement.

9. Overview of other multiphase heat transfer in low carbon energy field: research and application overview of solid-liquid two-phase flow, gas-solid two-phase flow and other multiphase heat transfer.

10. Discussion on engineering cases of multiphase flow transport, and advances in multiphase transport problems in low carbon energy field: multiphase flow mechanism, mathematical models of multiphase flow, multiphase flow and heat transfer, multiphase fluid dynamics, applications of multiphase flow and heat transfer, other problems in low carbon area.

Grading

Combination of the usual performance and the final exam of 2hours.

Textbooks & Other Materials

50. Hetsroni,G. Handbook of multiphase Systems, McGraw-Hill, NewYork, 1982— 2. Liquid－gas systems，by Hewitt, G. F. and Ishii, M..
50. Hewitt, G.F. Measurement of Two-phase parameters, Academic Press, 1978.
50. Chishlom, D. Two-phase Flow in pipelines and heat exchangers, Longman House,1983.
50. S. Mostafa Ghiaasiaan. Two-Phase Flow, Boiling and Condensation in Conventional and Miniature Systems. Cambridge University Press, 2008.
50. Sümer M. Peker, S¸erife S¸. Helvacı. Solid–Liquid Two Phase Flow. Elsevier, 2008.
50. 闫琪昌 等编著，气液两相流，哈尔滨工程大学出版社，第3版，2017.
50. 郭烈锦 等编著，两相与多相流动力学，西安交通大学出版社，2002.
50. 林宗虎，王树众，王栋 等编著. 气液两相流和沸腾传热，西安交通大学出版社，2003.
50. 鲁钟琪 等编著. 两相流与沸腾传热，清华大学出版社，2002.

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Notes