nptel mechanical engineering thermodynamics pdf

The corresponding volumes are 0.2 meter cube - that is the initial volume and 1.2 meter cube - that is the final volume. That means it is an expansion process where the pressure decreases. The initial pressure is 1000 kiloPascals and the final pressure is 200 kiloPascals. The initial and final pressures are 1000 kiloPascals and 200 kiloPascals respectively. This is the law of the process displacement work, where the pressure and volume changes. Relationship p and V, p is equal to a plus bV, where a and b are constants. For example, a gas the mass of which is 1.5 kg, undergoes a quasi static expansion, already we know that is pdV work, which follows a relationship p is equal to a plus bv, that is the A gas of mass 1.5 kg undergoes a quasi static expansion, you may or may not write the entire problem, you can write only the pertinent points.

(Refer Slide Time: 01:50)įirst problem, example one: This is a problem relating to the application of first law in a closed system and we start with a very simple problem - straightforward application. Through some practical problems, we will see how these analyses are being utilized. In this class, we will solve some problems to clear our concept about this analysis of first law to closed and open systems. In the last two classes, we have discussed the analysis of first law of thermodynamics to closed and open systems. Som Department of Mechanical Engineering Indian Institute of Technology, Kharagpur Lecture - 05 First Low– III Good morning, I welcome you all to this session.

Nptel mechanical engineering thermodynamics pdf