Engineers Edge

Thermodynamic Systems and Surroundings

Thermodynamic Systems and Surroundings

Thermodynamics involves the study of various systems. A system in thermodynamics is nothing more than the collection of matter that is being studied. A system could be the water within one side of a heat exchanger, the fluid inside a length of pipe, or the entire lubricating oil system for a diesel engine.

Determining the boundary to solve a thermodynamic problem for a system will depend on what information is known about the system and what question is asked about the system. Everything external to the system is called the thermodynamic surroundings, and the system is separated from the surroundings by the system boundaries.

These boundaries may either be fixed or movable. In many cases, a thermodynamic analysis must be made of a device, such as a heat exchanger, that involves a flow of mass into and/or out of the device. The procedure that is followed in such an analysis is to specify a control surface, such as the heat exchanger tube walls. Mass, as well as heat and work (and momentum), may flow across the control surface.

Contribute Article Spider Optimizer

© Copyright 2000 - 2019, by Engineers Edge, LLC
All rights reserved
Disclaimer | Feedback
Advertising | Contact | Privacy Policy


Spider Optimizer

Engineering Book Store
Engineering Forum
Excel App. Downloads
Online Books & Manuals
Engineering News
Engineering Videos
Engineering Calculators
Engineering Toolbox
GD&T Training Geometric Dimensioning Tolerancing
DFM DFA Training
Training Online Engineering
Advertising Center

Copyright Notice

Publishing Program