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
Q. Explain about wire-frame model? A wire-frame model of an object is the simplest, but more verbose, geometric model that can be used to represent it mathematically in the com

Pin-jointed steel structure: Find out the forces in the members of the pin-jointed steel structure. Solution Joint D  Suppose f CD and f DE both as tensile forc

Determine force on a body to pull or push: Q: A wooden block having weight of 50N rests on the horizontal plane. Determine force required which is acted at an angle of 15° to

series shaft and parallel shaft

Under the action of constant force, a 2kg block moves such that its position x as a function of time is given by X=t^3/3 ,where x in meters and t in sec , the workdone by force in

In the drawing, the weight of the block on the table is 380 N and that of the hanging block is 215 N. Ignore all frictional effects, and assuming the pulley to be massless.

give me assinment for Bearing material

The end gates of a lock are 5m high and when closed include an angle of 120 o . The width of the lock is 6.25 m. Each gate is carried on two hinged placed at the top and the bottom

Explain the Newer Machining Processes In recent years a number of new material have been developed which are being commonly used in space research missiles and nuclear indu

Keywords: Degree of Curve      :            The angle subtended at the centre by a chord of 100 ft (30.5 m) length. Super-elevation (cant)        :            The raising