Concept of process - thermodynamics, Mechanical Engineering

Assignment Help:

Concept of process - Thermodynamics:

A process can be defined as change in the state or condition of a substance or working medium. For instance, heating or cooling of thermodynamic medium, compression or expansion of gas, flow of fluid from one location to another. In thermodynamics there are 2 types of process; Flow process and Non flow process.

Flow Process: The processes in open system permit transfer of mass to and from the system. Such process is called as flow process. The mass enters the system and leaves when energy is exchanged energy. For example I.C. Engine, Boilers.

Non-Flow Process: The process taking place in closed system where there is no transfer of mass across the boundary is called as non flow process. In this type of process the energy in the form of heat and work cross boundary of system.

1386_Concept of process.png

In steady flow fluid flow at uniform rate and flow parameter do not change with time. For example if absorption of heat work output, gas flow etc. occur at uniform rate (Not changing with time), the flow will be called as steady flow. But if these vary throughout cycle with time, the flow will be called as non steady flow process for example, flow of gas or flow of heat in an engine but if long interval of time is chosen as criteria for these flows, engine will be known to be operating under non - flow condition.

 


Related Discussions:- Concept of process - thermodynamics

Calculated the diameter of an aluninium shaft , Calculated the diameter of ...

Calculated the diameter of an aluninium shaft: Calculated the diameter of an aluninium shaft that is designed to store the similar amount of strain energy per unit volume as a

Determine the maximum torque - shaft, Determine the maximum torque - shaft:...

Determine the maximum torque - shaft: Determine the maximum torque that can be safely transmitted by a shaft of 400 mm diameter, if (a) the maximum allowable shear stress i

Stress-strain carves for ductile materials, Stress-strain carves for ductil...

Stress-strain carves for ductile materials: A material is said to be ductile in nature, if it elongates before fracture. One this type of material is mild steel. Shape of stre

Heat faster steel copper or brass, Which conducts heat faster steel copper ...

Which conducts heat faster steel copper or brass? Ans) Copper conducts heat faster than steel or brass. Any material that is good for conducting heat is also good for electricit

Material selection for de-oiling unit, • IGF Vessel SH: CS + 1.6 mm CA +...

• IGF Vessel SH: CS + 1.6 mm CA + Internal Coating Eductor: 304L SS or alternatively, 12Cr • ORF Vessel SH: CS + 1.6mm CA + Internal Coating Mixer: 316L SS • Skim Oil T

Interference, construction and working of michelsons interferometer

construction and working of michelsons interferometer

What do you mean by weld and hold time, Q. What do you mean by Weld and hol...

Q. What do you mean by Weld and hold time? Weld time During this period the welding current flows through the circuit, i.e., it enters from one electrode, passes through t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd