# Show that the air standard efficiency for Ericsson cycle is given by-T) In(r,)()Тн 1+ In(rp)((ТH- TLwhere TH and T, are the maximum and minimum temperatures of the cycle, andis the pressureГрratio. Hint: No Regenerator is used here.Show that the air standard efficiency for Starling cycle without regenerator is given by(-1)+-1) n(r)(T-1)1)n(r)n=1 -where r is the compression ratio and is the maximum and minimum temperature ratio.(рн — PLr)(1 — -DShow that the mean effective pressure (mep) pm for the Otto cycle is given by pm =(-1)(r - 1)Net Work outputSwept Volumewhere pH max, PL = Pmin and r = compression ratio (CR). Hint: pm

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solve the last question about otto cycle. help_outlineImage TranscriptioncloseShow that the air standard efficiency for Ericsson cycle is given by -T) In(r,)() Тн 1+ In(rp)( (ТH - TL where TH and T, are the maximum and minimum temperatures of the cycle, and is the pressure Гр ratio. Hint: No Regenerator is used here. Show that the air standard efficiency for Starling cycle without regenerator is given by (-1)+-1) n(r) (T-1)1)n(r) n=1 - where r is the compression ratio and is the maximum and minimum temperature ratio. (рн — PLr)(1 — -D Show that the mean effective pressure (mep) pm for the Otto cycle is given by pm = (-1)(r - 1) Net Work output Swept Volume where pH max, PL = Pmin and r = compression ratio (CR). Hint: pm fullscreen
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Step 1

In Otto cycle there is two constant volume heat addition & rejection process and two isentropic compression and expansion process. PV diagram is shown below,

Step 2

For process 1-2 (isentropic compression process): help_outlineImage Transcriptionclose& Т, Ti Compres sion ratio, р. 2 р. Т, (7.)* -(1) Р. & Р. v P2 () (2) fullscreen
Step 3

For process 2-3 constant volume... help_outlineImage Transcriptionclose213& PV2 _ P3 Т, Т, T3 Р. plugging the value of T, & p, from equation 1& 2 Р, P.(7) Р. r - (3) fullscreen

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