Thermodynamics: Intorduction and First Law

This post cover about an example to solution for selected question in Mc Conkey book (Application thermodynamics for Engineer andTechnologist). The question are1.5, 1.10, 1.13 and 1.14.

Please click First Law to read full solution

Thermodynamics: Air Conditioning Cycle

Air Conditioning & Refrigeration inside the Mc Conkey book cover at Chapter 14. This post included some solution from the book.

The selected solution cover about 1 stages process and undercooling process. For the advance topic like using Cascade and Flash Chamber will be post for the next time.

Have a nice references from me. Its will help you to do the others exercise for this topic.

Please comment on the comment area. Good Luck.

Click Air Cond Process to get a full Note & Solution

Thermodynamics: Vapor Power Cycle

Vapor power cycle or steam power cycle. This cycle is a very basic thermodynamics cycle. It use T-s diagram.
click here to get the selection exercise solution from Mc Conkey book.
Good Lucks. Please try this at home

Thermodynamics: Gas Power Cycle

Gas power cycle is using Brayton Cycle (show in figure) .

This figure show partial equation of the gas power cycle.

Click here to get the example of the Gas Power Cycle

Thermodynamics: Air Standard Cycle solution

AIR STANDARD CYCLES

Because the working fluid does not go through a complete thermodynamic cycle in the engine (even though the engine operates in mechanical cycle) the internal combustion engine operates on the so called open cycle. However in order to analyze internal combustion engines, it is advantageous to devise closed cycles that closely approximate the open cycles. One such approach is the air standard cycle which is based on following assumptions:

1. A fixed mass of air of the working fluid throughout the entire cycle, and the air is always an ideal gas. Thus there is no inlet process or exhaust process.
2. The combustion process is replaced by a heat transfer from an external source.
3. The cycle is completed by heat transfer to the surroundings (in contrast to the exhaust and intake processes of an actual engine.)
4. All processes are internally reversible.
5. The additional assumption is usually made that air has constant specific heat.
   

The compression and power strokes of an internal combustion engine are the ones which account for much of its work output. The exhaust and intake strokes are up a small account of the work and form a small counterclockwise loop on P-V diagram.

Neglecting the lower bit part, the upper region (clockwise) is approximated as an Otto cycle with two isochores (V=C) and two isentropics (S=C)

The file available to download. Click here to download