How diesel cycle works. ✔

Working of Diesel cycle, this is the base for the design of a diesel engine.

The diesel cycle is the theoretical background on which a diesel engine was constructed. In this topic we are discussing about the two aspects of the diesel cycle:
Theoretical diesel cycle
Actual diesel cycle.
Theoretical diesel cycle: As explained in the video and shown in fig:1, it is denoted with a pressure volume graph, pressure in "Y axis" and volume in "X axis".
It amuses that as the process starts "1" the cylinder is full of air, and from 1-2 the adiabatic (no heat transfer is involved in this process) compression of air is happening. From 2-3 constant pressure combustion is happening, from 3-4 again adiabatic expansion of air is happening and from 4-1 exhaust.
This is just a theoretical concept the actual working is different, the adiabatic process is not involved in actual diesel cycle as its impossible to produce an engine with no heat transfer involved.
Actual diesel cycle: As shown in fig: 1, 1-2 the intake process in happening, 2-3 compression, 3-4 combustion, 4-5 expansion and from 5-1 exhaust, as mentioned above no adiabatic process is involved in practical concept.Technical Videos.

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[duttthakar]

Vry gud u can put some concepts of Thermodynamics. Like Entropy, Enthalpy and Other Basic stuffs then it will surely b quite helpful...

[fattywagonman]

I'm studying the original Brayton cycle piston engines. There is a family of piston engines that were constant combustion... starting with the Barber engine 1791 and the Cayley and Roper engines. All of those engines use a compressor about 1/2 the size of the expander and the compressed air passes through a fire where heeat is added.. However The engines Brayton made are not constant combustion. In a Brayton the compressed air was heated as it entered the expander cylinder.

[TechTrixInfo]

Hi tks for the comment..you can visit our blog the link is given in the description..we have also uploaded the Ottocycle video just visit our channel and learn it..you can get regular free updates on Mechanical Engg topics by just clicking the subscribe button above the video....and also share it with your frnds, , , u can find us in face book just search Techtrixinfo

[TechTrixInfo]

Now we are coming up with better quality videos...you can connect with us on face book and also download our Aneroid application from google play store for free...just search for Techtrixinfo

[Srk]

good.,

a constant pressure and a constant volume process.

[FedorDushkin]

Very nice video. what i do not understand, however, is that since step 4-1 is the exhaust stage, and step 1-2 is adiabatic(isothermal) compression, where is the air intake stage? i know that in the actual process there is an intake stage, but what about the theoretical? also, would you be able to make a video about the Otto cycle? we are going to study that next and you helped me understand the diesel cycle more.

thank you

[TechTrixInfo]

Thank you..yes we will update ..plz share about this with your frnds too in face book it might be useful to them too..
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[TechTrixInfo]

Thank you. please have a look at our other videos too and rate us.

[amonky]

Really good explanation man, thank you. I like how you keep it simple,
It would be great if you can get better quality videos.

[TechTrixInfo]

Yup, we are now available on Google, you can download our android app.

[TechTrixInfo]

ok great info, that you will learn about it.
please have look at our other video too and rate us.

[ANIRUDHRAVI]

Very good and useful explanation. Thank you

[noor]

to 1:03 i want to also add that adiabatic means -
as well there is no heat transfer this process is very rapid (opposite to isothermal process)

and chang of internal energy = (-) work done - how i know this - i just had physics class - lol

keep up the good work -

[TechTrixInfo]

Great dude, good comment. keep it us.
please have a look at our other videos too and rate us.

[rafsanislam]

Thanks for your advice. And what is the website for learning engineering?

[fattywagonman]

IMO the true piston Brayton is more like a supercharged version of a Lenoir cycle... Can you comment?

[TechTrixInfo]

please see our latest videos too and rate us.

[SHUBHAMYADAV-swzt]

Why bursting of diesel is taken as isobaric process?

[rafsanislam]

Sir, Your explanation is very good.And What is your name?

[rafsanislam]

Thanks You Sir. And What is your name?