MECH240-Lesson 1- Introduction
University of Victoria
Dr. Samira Gharehkhani.
Chapter 1: Introduction, why thermodynamics?
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MECH240-Lesson 1- Introduction
University of Victoria
Dr. Samira Gharehkhani.
Figure 1-1: An example of application area of thermal sciences
Definitions
Thermodynamics: It is the science of the flow of heat where the storage, transformation and
transfer of energy are studied.
Application areas:
1- Power plants.
2- Refrigeration systems
3- Engines.
4- Etc.
Thermodynamic system: or simple system is defined as a quantity of matter or a region in space
chosen for the interest of analysis or study. …….
Boundary (control surface): The real or imaginary surface that separates the system from its
surrounding is called boundary. ……..
energy that can be transferred from one system as a result ofemperature difference
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