2.Air Standard Assumption|Air Standard Cycle in Urdu/Hindi

Assumptions made in air standard cycle|Air standard Cycle Thermodynamics|Gas Power Cycles|Air Standard Cycle Definition|Difference between Air Standard Cycle and fuel air cycle| Gas power cycles are thermodynamic cycles during which power is produced and the working fluid remains in gaseous phase. The devices which work according to these devices are called engines. The purpose of an engine is to convert chemical energy to thermal energy or work while operating in a cycle. All the engines (Petrol/Gasoline, Diesel, Gas turbines, turbojet and space craft engines) operate according to gas power cycles. The analysis of engines is very difficult due to friction and non-equilibrium expansions/compressions. To perform thermodynamic analysis, we make some simplifications and apply some assumptions on actual cycles. The resulting cycle is called ideal cycle. In an ideal cycle, expansion and compression processes are quasi equilibrium (near equilibrium) and there is no friction as well. Moreover, all pipes connecting different parts of engine are well insulated to avoid any loss of heat. Changes in kinetic and potential energies are also neglected as these values are relatively small in comparison with internal energy and enthalpy values. Moreover, in engines combustion takes place in the presence of air. From combustion products, power is produced and exhaust gases are sent back to the atmosphere. A fresh stock of air and fuel (mixture) is prepared all the time at the start of next cycle. Combustion process is complex and lengthy. To perform analysis for fresh stock is also cumbersome. In Cycle, the final and initial state of the system is same. To simplify the above mentioned issues, we make some assumptions for air known as AIR STANDARD ASSUMPTIONS. According to which, air is working fluid that continuously circulate in engine and behave as an ideal gas. Combustion process is replaced by a heating section in engine while exhaust process is replaced by a heat rejection process. All the processes in the engine are internally reversible. Effort has been made to explain concepts/idea in great detail, however any suggestions/comments are more than welcome. --------------------------------------------------------------------------------------------------------------------------------------- The creator of this channel is an energetic, motivated and visionary teacher/engineer who is always trying to learn and share things. He is of the view that study is lot more than just obtaining marks/CGPA in exams. Things must be learnt/understood rather than memorized. There is no need to memorize anything in Science. Effort must be made to get the essence of knowledge rather than just making it a source of Job. For business enquires and collaborations, email at [email protected] ------------------------------------\Social Media Links/------------------------------------ Facebook:   / mech-zona-2360199513999311   Twitter:   / mechzona   Instagram:   / mechzona96   +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ _____________________| Watch More Videos_____________________| ♥Gas Power Cycles    • 1. Introduction to Gas power Cycles in Urd...   ♥General Energy Analysis    • 1Energy of Flowing Fluid Formula/Flow Ener...   ♥Animation    • 1. Laminar Flow vs Turbulent Flow animatio...   ♥FSC Part1 Chapter06 Fluid Dynamics    • 2.Viscous Drag and Stokes Law Class 11 Phy...   ♥Pressure Measurement    • Lec 01 Absolute, Atmospheric and Vacuum Pr...   ♥Vapor Power Cycles    • 1. Carnot Vapor Power Cycle in Urdu/Hindi   ♥Thermodynamics Basics    • 1. System, Surroundings and Boundary in Ur...   Please Subscribe:    / @sciencespeaks99   Effort has been made to describe things in great detail. However, any suggestions/comments are highly commendable. #GasPowerCycle #Concepts #Analysis #Engine #Assumptions