Coursecode: wb1224

Coursename: Thermodynamics 2

DUT creditpoints: 2

ECTS creditpoints: 3

Faculty of  Mechanical Engineering and Marine Technology

Lecturer(s): Woudstra, ir. N.

Tel.:  015-27 82178

Catalog data:

second law of thermodynamics, entropy, exergy, exergy efficiencies, vapor power cycles, thermodynamic relations, equations of state, helmholtz free energy, gibbs free energy,

Course year:

2

Period:

0/4/0/0

Hours per week:

4

Other hours:

-

Assessment:

written

Assessm.period:

2, 3

(see academic calendar)

Prerequisites: wb1126wb

Follow up: wb4304, wb4302

Detailed description of topics:

The second law of thermodynamics is introduced and a number of corollaries are considered.

Also the property entropy is introduced and possibilities to use this property for thermodynamic analyses are shown.

Exergy, another property based on the second law of thermodynamics, is presented together with some useful quantities and tools for exergy analysis (exergy loss, exergy efficiencies, value diagram). In this course the definition of exergy will be limited to the thermomechanical exergy. Some examples of exergy analyses of simple plants and  plant components are presented.

The principles of vapor power systems are presented and possibilities for system optimization, like the choice of pressures and temperatures and the application of superheat and reheat, are discussed.

Finally thermodynamic relations for simple compressible substances are presented. Some examples of equations of state are presented (virial equation of state, two-constant and multiple-constant equations of state) and the Helmholtz and Gibbs free energies are introduced. Starting from the relations from exact differentials it is shown how expressions can be derived for )s, )u and )h in the single phase region and how these expressions can be used for the construction of  property diagrams. Generalized charts are introduced to estimate the deviation of the real properties of gases from the ideal gas property values.

Course material:

Fundamentals of Engineering Thermodynamics, SI-version (3^rd edition, 1998), M.J. Moran, H.N. Shapiro, John Wiley & Sons, ISBN 0 471 97960 0

References from literature:

·         Thermodynamica voor energiesystemen. J.J.C. van Lier, N. Woudstra. (Delft University Press, ISBN 90-407-2037-1)

Thermodynamik. Eine Einführung in die Grundlagen und ihre technische Anwendungen. Baehr, H.D.. ISBN 3-540-08963-2

Remarks assesment, entry requirements, etc.):

Learning goals:

the course provides the student the theoretical basis and some tools for the thermodynamic evaluation of simple conversion processes

Computer use:

Laboratory project(s):

Design content:

Percentage of design:  25 %