HomeUndergraduate and post graduate educational programs Educational program Дисциплина

Heat-Mass Exchange

Duysembaeva Gulnur Seytkhanovna

Description: The discipline develops students' ability to understand and explain the basic principles and laws of heat and mass transfer in engineering systems. The course covers the study of the theoretical foundations of heat transfer, mass transfer, methods of their calculation and application in various thermal power and technological installations. As a result, students will be able to analyze heat and mass transfer processes, evaluate system efficiency, and create informed solutions to optimize the operation of heating equipment.

Amount of credits: 5

Пререквизиты:

Fundamentals of Engineering Thermodynamics

Course Workload:

Types of classes	hours
Lectures	15
Practical works	30
Laboratory works
SAWTG (Student Autonomous Work under Teacher Guidance)	30
SAW (Student autonomous work)	75
Form of final control	Exam
Final assessment method	exam

Component: University component

Cycle: Base disciplines

Goal

Students study the fundamentals of heat and mass transfer theory and apply the knowledge and skills acquired in their professional activities as thermal power engineers.

Objective

As a result of studying the course ‘Heat and Mass Transfer’, students should: study the patterns of the main processes of heat and mass transfer, in particular the processes of heat and mass transfer occurring simultaneously; acquire the skills and abilities to perform thermal calculations and solve practical problems related to heat and mass transfer in power plants and thermal energy and heat technology equipment.

Learning outcome: knowledge and understanding

Know the basic mechanisms of heat transfer: thermal conductivity, convection, thermal radiation. Understand the patterns of mass transfer processes and their analogy with heat transfer. Explain the influence of the physical properties of the environment on the intensity of heat and mass transfer.

Learning outcome: applying knowledge and understanding

Perform calculations of heat transfer coefficients, resistances, and heat flows. Apply mathematical models to describe joint heat and mass transfer processes. Use software tools and numerical modelling methods to analyse real systems.

Learning outcome: formation of judgments

Evaluate the effectiveness of various methods of heat and mass transfer in engineering tasks. Compare methods of heat transfer intensification and justify their selection. Analyse thermal engineering schemes for rationality and energy efficiency.

Learning outcome: communicative abilities

Present calculated and analytical data in the form of reports, graphs and diagrams. Discuss technical solutions within the team and justify your opinion. Use professional terminology correctly in oral and written communication.

Learning outcome: learning skills or learning abilities

Search for and analyse contemporary scientific publications on heat and mass transfer. Master new methods of calculation and equipment diagnostics. Adapt to new technologies and programmes used in heating engineering and energy.

Teaching methods

In the context of credit-based learning technology, classes should be conducted primarily in an active and creative manner. Among the effective pedagogical methods and technologies that encourage students to participate in the search for and management of knowledge and in acquiring experience in independent problem solving, the following should be noted: - problem-based and project-oriented learning technologies; - technologies for educational and research activities; - communication technologies (discussion, press conference, brainstorming, debates and other active forms and methods); - the situation method (situation analysis); - game technologies in which students participate in business, role-playing and simulation games; - information and communication (including distance) technologies.

Assessment of the student's knowledge

Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.

Period	Type of task	Total
1 rating	Calculation work No. 1 – Thermal conductivity under steady-state conditions.	0-100
	Calculation work No. 2 – Non-stationary thermal conductivity. Thermal conductivity in the presence of internal heat sources.
	Calculation work No. 3 - Convective heat transfer during forced motion of fluid along a plate, during forced motion of fluid in a pipe.
	SRC No. 1 - Heat conduction through a flat wall
	SRC No. 2 – Heat exchange in a turbulent boundary layer. Heat transfer coefficient
	Milestone control No. 1
	Verbal survey
2 rating	Calculation work No. 4 - Convective heat transfer during forced transverse flow around a pipe and a bundle of pipes.	0-100
	Calculation work No. 5 - Convective heat transfer during free movement of liquids and forced movement of gases at high speeds. Heat transfer during changes in the aggregate state of matter (boiling, condensation).
	Calculation work No. 6 - Thermal radiation
	SRC No. 1 - Thermal insulation. Critical insulation diameter. Heat transfer through the fin.
	SRC No. 2 - Heat exchangers. Classification of heat exchangers. Basic rules and equations for thermal calculations.
	Milestone control No. 2
	Verbal survey
Total control	Exam	0-100

The evaluating policy of learning outcomes by work type

Type of task	90-100	70-89	50-69	0-49
Type of task	Excellent	Good	Satisfactory	Unsatisfactory
Interview on control issues	demonstrates system theoretical knowledge, owns terminology, logically and consistently explains the essence of phenomena and processes, makes reasoned conclusions and generalizations, gives examples, shows fluency in monologue speech and the ability to quickly respond to clarifying questions	demonstrates solid theoretical knowledge, owns terminology, logically and consistently explains the essence of phenomena and processes, makes reasoned conclusions and generalizations, gives examples, shows fluency in monologue speech, but at the same time makes insignificant mistakes that he corrects independently or with minor correction by the teacher	demonstrates shallow theoretical knowledge, shows poorly formed skills of analyzing phenomena and processes, insufficient ability to draw reasoned conclusions and give examples, shows insufficient fluency in monologue speech, terminology, logic and consistency of presentation, makes mistakes that can be corrected only when corrected by a teacher.	demonstrates system theoretical knowledge, owns terminology, logically and consistently explains the essence of phenomena and processes, makes reasoned conclusions and generalizations, gives examples, shows fluency in monologue speech and the ability to quickly respond to clarifying questions
Work in practical (seminar) classes	completed the practical work in full compliance with the necessary sequence of actions; in response, correctly and accurately performs all records, tables, drawings, drawings, graphs, calculations; correctly performs error analysis. When answering questions, he correctly understands the essence of the question, gives an accurate definition and interpretation of the basic concepts; accompanies the answer with new examples, is able to apply knowledge in a new situation; can establish a connection between the studied and previously studied material, as well as with the material learned in the study of other disciplines	I fulfilled the requirements for the "5" rating, but 2-3 shortcomings were made. The student's answer to the questions satisfies the basic requirements for the answer to 5, but is given without applying knowledge in a new situation, without using connections with previously studied material and material learned in the study of other disciplines; one mistake or no more than two shortcomings are made, the student can correct them independently or with a little help from a teacher.	I did not complete the work completely, but not less than 50% of the volume of practical work, which allows me to get the correct results and conclusions; mistakes were made during the work. When answering questions, the student correctly understands the essence of the question, but in the answer there are separate problems in the assimilation of the course questions that do not prevent further assimilation of the program material; no more than one gross error and two shortcomings were made.	completed the practical work in full compliance with the necessary sequence of actions; in response, correctly and accurately performs all records, tables, drawings, drawings, graphs, calculations; correctly performs error analysis. When answering questions, he correctly understands the essence of the question, gives an accurate definition and interpretation of the basic concepts; accompanies the answer with new examples, is able to apply knowledge in a new situation; can establish a connection between the studied and previously studied material, as well as with the material learned in the study of other disciplines
Tasks in the test form for border control	100-90% correct answers	89-70% correct answers	69-50% дұрыс жауаптар	100-90% correct answers

Evaluation form

The student's final grade in the course is calculated on a 100 point grading scale, it includes:

40% of the examination result;
60% of current control result.

The final grade is calculated by the formula:

FG = 0,6	MT₁+MT₂	+0,4E
	2

Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;

E is a digital equivalent of the exam grade.

Final alphabetical grade and its equivalent in points:

The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:

Alphabetical grade	Numerical value	Points (%)	Traditional grade
A	4.0	95-100	Excellent
A-	3.67	90-94	Excellent
B+	3.33	85-89	Good
B	3.0	80-84
B-	2.67	75-79
C+	2.33	70-74
C	2.0	65-69	Satisfactory
C-	1.67	60-64
D+	1.33	55-59
D	1.0	50-54
FX	0.5	25-49	Unsatisfactory
F	0	0-24	Unsatisfactory

Topics of lectures

Introduction
Thermal conductivity
Thermal conductivity coefficient
Thermal conductivity of a cylindrical wall
Thermal conductivity of bodies with internal heat sources
Differential equation of heat conduction
Convective heat transfer
Laminar and turbulent flow regimes and fluid motion regimes
Fundamentals of similarity theory
Heat capacity under true convection
The process of convective heat transfer during boiling or condensation
Thermal insulation
Heat exchange in liquids and gases
Radiant heat transfer
Complex types of heat exchange

Key reading

Рейтер К.А. Термодинамика, теплопередача и гидравлика. Ч.1. Термодинамика и теплопередача. – М.: Курск, 2019.
Логинов, В.С. Примеры и задачи по тепломассообмену: Учебное пособие / В.С. Логинов, А.В. Крайнов, В.Е. Юхнов и др. - СПб.: Лань, 2019
Жмакин, Л.И. Тепломассообменные процессы и оборудование: Учебное пособие / Л.И. Жмакин. - М.: Инфра-М, 2018.
Васильев В.Ф., Дерюгин В.В. Тепломассообмен: учебное пособие, 2-е изд., испр. М.:Лань, 2018.

June 12, 2023 - National mourning day in the Republic of Kazakhstan