Diesel cycle Numerical Example

Diesel cycle Numerical Example
Lecture By: Er. Himanshu Vasishta, Tutorials Point India Private Limited

[TutorialsPoint_]

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[rsup]

In the question, compression ratio is 5, you are using expansion ratio as 5, why?

[vikasjain]

If we dont know the volumes, we can use compression ratio also to find T2 in beginning
T2/T1=(V1/V2) power(gamma)
T2/T1=(r) power(gamma)

[yashak]

if we assume r = re then fuel cut off ratio becomes 1, which says that v3 = v2 which says that its a isochoric process, but its actually isobarric process. It must be expansion ratio not compression

[wolfimator]

U cant take expn ratio equal to compr ratio... If that is so., then what is diff bw otto and diesel cycle....

[soumyanarayanbehuria]

I don't think that compression ratio is assumed to b expansion ratio

[hassankhansu]

A petrol engine consumes 8 litres (L) of petrol per hour and develops 25 kW of indicated power. The specific gravity of petrol is 0.75 and its lower calorific (or heating) value (LCV or LHV) is 44000 kJ/kg. Determine the actual indicated thermal efficiency of the engine. Assume the mass density of water: w = 103 kg/m3.

[rezadolfo]

why are you using 5 as an expansion ratio? it is a compression ratio right?

[utpalsamanta]

Sir.. can u solve any numerical, where calculate the value of MEP..( in this numerical, v1, v2, v3, v4, .... is not given, but also the comprassion and cut off ratio is given) . of diesel cycle problem?....plz sir

[engineermotorwala]

Dear sir....
Places help me 🙏 i can't understand area of the diagrams and cross section area of the piston definition is same..?...? And how to mean effective pressure... Pm=ip. I know that but i can't understand how how to calculate heat energy to mechanical energy ☹️ please please help me sir 🙏🙏🙏

[vasanthkumarkallannavar]

actualy in quetion 2 temp shoud be give but not there (quet is wrong) OR CUT OFF SCOULD be given or expansion and calculate p4 and also temp is t3/t4 = (p3/p4)^y-1/y isentropic pvt relation we get 2030kpa oki

[Rajkumar.]

Sir re expansion ratio ki value kha se aayi vo tho compression ratio r ki value 5 thi ...Ap ne compression ki value expansion ratio me rak fi

[hassankhansu]

sir can u plz solve numerical for me its important

[chinnaraomantri]

Sir duel cycle video ready karu plzz plzz

[manukamboj]

How to find compression ratio in desiel cycle