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

Question
Asked Nov 13, 2019
191 views

take your time but please solve the question related to starling cycle and otto cycle.

i need the answers.

they are the subparts of the same question.

try sending solution in 2 hours atleast if possible.

Show 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
help_outline

Image Transcriptionclose

Show 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
check_circle

Expert Answer

Step 1

Hello. Since you have posted multiple questions which are needed to be solved, we will solve the first question for you. If you want any other specific question to be solved then please resubmit only that question or specify the question number.

Consider the P-V and T-S diagram of the Stirling cycle.

The description of the processes are as follows,

Process 1-2 – Isothermal heat rejection.

Process 2-3 – Constant volume heat addition.

Process 3-4 – Isothermal heat addition. Volume of the system increases due to isothermal heat addition.

Process 4-1 – Constant volume heat rejection. Both temperature and pressure of the system decreases due to isochoric heat removal.

help_outline

Image Transcriptionclose

Heat added 4 1 T yent Reietuon Hat reieco adit V el

fullscreen
Step 2

The net heat input in the Stirling cycle is equal to the heat addition in isothermal process and heat addition in constant volume process.

help_outline

Image Transcriptionclose

= Qisothe rmal+Qyokume in V |+ C,(T-T;) In OiRTH V The net work done in the cycle is equal to net heat input W out in net V2 V. +Cy (T-T) |+ Cf (T,-T)+RT, In V W net = RT, In| = RT, In V In V W net

fullscreen
Step 3

Write the expression for the a...

help_outline

Image Transcriptionclose

V. |+ RT RT, In VL 4 n = Cy (7-T) RTH In Since the compression ratio r = and V (RT, In r RT Inr) (-RTg Inr+C (T-T,)) (-RT, Inr RT In r) (-RT;g Inr +C,(T -T,)) Inr(TT R 1-1 1 (T-T 7-1 -T Inr H (y-1)In r -1 -(y-1)n --1

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Engineering

Mechanical Engineering

Heat Transfer

Related Mechanical Engineering Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: I need help solving this problem.

A: (A) Correct pairings of the all the given terms with their respective phrases.

question_answer

Q: The jib crane is supported by a pin at C and rod AB. The rod can withstand a maximum tensionof 40 kN...

A: Consider the following free body diagram:Cx and Cy are the vertical and horizontal reactions are the...

question_answer

Q: 39)A tensile test specimen has a gage length=3.0 inches and a diameter=  .75 inches. Yielding occurs...

A: Given:

question_answer

Q: 2-1. Temperature Response in Cooling a Wire. A small copper wire with a diameter of 0.792 mm and ini...

A: Time can be calculated by,

question_answer

Q: Match each of the following terms to the phrase that describes it. Answers are used only once.

A: The correct match is: Drill spot           -     3Countersink      -     6Knurl                  -  ...

question_answer

Q: In April 2010, the worst oil spill ever recorded occurred when an explosion and fire on the Deepwate...

A: Calculate the density of sea water from the specific gravity.

question_answer

Q: Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 299°C from ...

A: Determine the gas constant.

question_answer

Q: Which steel presents the maximum modulus of resilience UR?   UR = 1/2 × ((Sy^2)/E)     AISI 4142 ...

A: Modulus of Resilience:It is defined as the maximum amount of energy that a material can absorb up to...

question_answer

Q: How much entropy is transferred if 200 W of thermal energy are transferred to a heat sink at 300K?

A: Consider the schematic diagram of the thermal reservoir (Heat sink) extracting heat.