Thermodynamic process - thermodynamics, Mechanical Engineering

Thermodynamic process - Thermodynamics:

Thermodynamic system undergoes changes because of the energy and mass interactions. Thermodynamic state of system changes because of these interactions.

The mode in which change of state of system takes place is termed as PROCESS such as constant pressure, constant volume process etc. In the figure given below process 1-2 & 3-4 is constant pressure process whereas 2-3 & 4-1 is constant volume process.

Take gas contained in cylinder and being heated up. The heating of gas in cylinder shall result in change in state of gas as its pressure, temperature etc. shall increase. But, mode in which this change of state in gas takes place during heating shall constant volume mode and thus the process shall be called as constant volume heating process.

The PATH refers to series of state changes through which system passes during a process. Therefore, path refers to the loci of various intermediate states passed through by system during process.

 

1343_Thermodynamic process.png

CYCLE refers to characteristic sequence of processes in such a fashion that initial and final states are identical to each other. Thus, a cycle is one in which the processes occur one after other so as to finally, land
the system at same state. Thermodynamic path in cycle is in closed loop form. After the occurrence of cyclic process, system shall show no sign of processes having occurred. It can be said that cyclic integral of any property in a cycle is zero.

1-2 & 3-4 = Constant volume Process

2-3 &4-1 = Constant pressure Process

1-2, 2-3, 3-4 & 4-1 = Path

1-2-3-4-1 = Cycle   

 

Posted Date: 10/15/2012 1:26:21 AM | Location : United States







Related Discussions:- Thermodynamic process - thermodynamics, Assignment Help, Ask Question on Thermodynamic process - thermodynamics, Get Answer, Expert's Help, Thermodynamic process - thermodynamics Discussions

Write discussion on Thermodynamic process - thermodynamics
Your posts are moderated
Related Questions
Solve the support reactions at A and D by using the force method. A is a fixed support; B and C are rigid joints; and D is a pin support. EI is constant for all members.

Ask Compound springs how do they workquestion #Minimum 100 words accepted#

please help me to calculate the diameter of a brake drum for using in a "brake drum dynamometer engine test rig" the engine specs are as follows: - 6Hp single cylinder 4stroke engi

Q. Explain about Nonconforming Material? If PMI test results indicate that the material or item does not meet the specified composition of the alloy, the subject material/item

Carbon Dioxide (CO 2 ) Lasers   The CO 2 laser is a gas discharge device and it operates by electric excitation of an active medium that is a mixture of helium, nitrogen an

how to design a steel connecting rod using minimum weight and thickness?

Stress in thin rotation rims

Determine acceleration of weight: Two pulleys of radii 200 mm and 400 mm are mounted co-axially and rigidly on a common-shaft. These pulleys have a overall mass of 28 kg an

Explain the Tool Signature The tool angles have been standardized by the American standards association. The seven important elements comprise the signature of the cutting tool