Lets start this thread by asking...


"who can explain the theoritical engine and can paste the theoritical formula?"

raymiev and rostan can!

:D

pasensya , panggamo lng kay la ko may namang-an, hehehe!

:D

hehehehe.... indi ah... damu da masabat.....ginareview ko man gani kay nalipatan ko nman ini :lol:

Bal-an gid ang ga copy-paste ah! hehehe :lol: :lol: :lol:

oo naman... why re-invent the wheel?.. hehehehe...

Unless you are Michelin. :)

indi ah.. enhance na ya ang sa michelin.....indi re-invent... hehehehe....

Ah, amo gali? OT na gid hehehe. Back to the first question.

Ano ang pamangkot mo, engine o reverse engine? Daw RAC man ning thread? :lol:

basics anay ah.....suguran ta sa perfect engine/cycle :D

You should mean ideal cycle. Multiple choice ta ha. What is the ideal cycle?

a. thermal cycle
b. energy cycle
c. rankine cycle
d. carnot cycle
e. none of the above
f. all of the above

i was refering to the most efficient cycle :D

All of the Above :lol: :lol: :lol:

Ti Toto Rostan, all of the above kuno. Insakto man? :rolleyes:

Every cycle has its own Ideal Cycle...

I.e... Carnot, Otto, Rankine, etc.

Generate lng P-V Diagram ah :thumb: :thumb:

Mahulat lang ko sabat ni Toto Rostan a. :rolleyes: :rolleyes:

:D :D :D

hehehehe.... i was referring to the most basic.... the CARNOT Engine or Cycle....

next question please..... nasa meeting pa ako.... :lol:

Carnot Cycle

The most efficient heat engine cycle is the Carnot cycle, consisting of two isothermal processes and two adiabatic processes. The Carnot cycle can be thought of as the most efficient heat engine cycle allowed by physical laws. When the second law of thermodynamics states that not all the supplied heat in a heat engine can be used to do work, the Carnot efficiency sets the limiting value on the fraction of the heat which can be so used.

In order to approach the Carnot efficiency, the processes involved in the heat engine cycle must be reversible and involve no change in entropy. This means that the Carnot cycle is an idealization, since no real engine processes are reversible and all real physical processes involve some increase in entropy.

:thumb:

Gusto mo pa PV Diagram Mig? :naughty: :naughty:

papilit para matun-an ta liwat mig ah... :smoke

Carnot Cycle P-V Diagram

The ideal cycle or Carnot cycle can be best described by a TS diagram rather than a PV diagram. Why is this the ideal or most efficient cycle? - (daw dapat sa thermo ni a.)

Cge T-S Diagram ah..... :thumb: :thumb:

manilag nilag lang ko anay ah.... :thumb:

Carnot Cycle T-S ( Temperature - Entropy ) Diagram

So why is this the most efficient? *:shrug:

because it gives an effy close to 100% :naughty:

:rolleyes: :rolleyes: :rolleyes: *no *no *no

:D :D :D



because carnot cycle is reversible...... and assumed to be operating in fixed temperatures.... <_< ;)

<_< <_<

manilag man ko sang sabat sang iban a.

daw damu man diri RACkers..... sabat man kamu bi :lol:

The Most efficient since no real engine processes are reversible and all real physical processes involve some increase in entropy.

:naughty: :naughty: :naughty:

matesting ko manong raymie,

Ti kay ang heat in is equal to heat out with the change of entropy so that means, the heat from the fuel is fully utilized.

Carnot cycle assumes that the system is completely isolated in such a way nga wala sang heat loss or heat gained during the cycle which is really imposible to attain.

So since wala ka loses, means you are effecient, di bala?

Kay if you graph it sa TS Diagram compare to other cycles with the same delta T's, Ti, square gid ya ang may pinakadako area eh.

Baw daw ga tin-aw na ang langit haw... :D

1. no heat loss/gain during the constant entropy processes
2. forms a square (or rectangle as well) sa TS diagram
3. highest ratio (pinakadako area sa TS diagram) for the same delta T vs any other possible thermal cycles

Pero it still cannot utilize all the energy of the fuel. :)

Ano pa gid?

Ti, toto Rostan, ok na ning mga sabat? Dapat refrigeration na ang derecho sini...

oki oki ah....

next... ma P-H diagram naman ta... .wala loses anay para back to basics :thumb: