Ask Mechanical Engineering Expert

problem 1)a) Define and describe Clausius statement of second law of thermodynamics.

b) Demonstrate that of all the engines operating between a given constant temperature source and a given constant temperature sink the efficiency of a reversible engine is maximum.

c) Air standard limited pressure cycle has compression ratio of 15 and compression begins at 0.1MPa and 40°C. The maximum pressure is limited to 6 MPa and total heat added is 1.675 MJ/kg. find out

(i) heat supplied at constant pressure

(ii) cut off ratio

(iii) Cycle efficiency

problem 2)a) Establish the inequality of clausius.

b) Steam at 30 bar and 350°C is supplied to a steam turbine in a practical regenerative cycle and the steam is bled at 4 bar pressure. The bled steam comes out as dry saturated steam and heats the feed water in an open type feed water heater to its saturated liquid state. The rest of the steam in the turbine expands to a condenser pressure of 0.1bar. Assuming the turbine efficiency to be same before and after bleeding, and neglecting the pump work determine

i) Turbine efficiency

ii) Steam quality at the inlet to the condenser

iii) The cycle efficiency

c) What are the differences between work transfer and heat transfer?

problem 3) List the three basic modes in which the heat is transferred.

b) Describe Fourier’s law of heat conduction

c) A heat engine operating between two reservoirs at 1000K and 300K is used to drive a heat pump which extracts heat from a reservoir at 300K at a rate twice that at which the engine rejects heat to it. If the efficiency of the engine is 40% of maximum possible and COP of the heat pump is 50% of maximum possible, what is the temperature of the reservoir to which heat pump rejects heat? What is the rate of heat rejection from the heat pump if the rate of heat supply to the heat engine is 50 kw.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M96480

Have any Question?


Related Questions in Mechanical Engineering

The aim of the project is to demonstrate certain aspects of

The aim of the project is to demonstrate certain aspects of engineering materials in different applications. The projects will be assessed on the basis of a written Research Report. The report should clearly show what yo ...

Force exerted by jet on moving cart1 you need to determine

Force Exerted By Jet On Moving cart. 1. You need to determine the velocity of water that comes out from the nozzle of this system. need the equation please formulate the equation. 2. This water will strike a small cart a ...

Mechanical engineering assignment task - solve the given

Mechanical Engineering Assignment Task - Solve the given problem. Task 1 - A spring with a one-turn loop of 40mm mean radius is formed from a round section of wire having 5 mm diameter. The straight tangential legs of th ...

Projectflow processing of liquor in a mineral refining

Project Flow Processing of Liquor in a Mineral Refining Plant The aim of this project is to design a flow processing system of liquor (slurry) in a mineral (aluminum) refining plant. Aluminum is manufactured in two phase ...

Heat transfer and combustionyou will need graph paper a

HEAT TRANSFER AND COMBUSTION You will need graph paper, a calculator, a copy of Appendix 1 from lesson HTC - 4 - 2 and access to steam tables to answer this TMA. 1. A fuel gas consists of 75% butane (C 4 H 10 ), 10% prop ...

Assignment -q1 explain the difference between the

Assignment - Q1. Explain the difference between the metacentric height of a ship during 'Partially Afloat condition and 'Free Floating' condition; aid a sketch to support your answer. Q2. With the aid of sketches, explai ...

Materials behaviour from atoms to bridges assignment -

Materials Behaviour from Atoms to Bridges Assignment - Distributed loads and static equilibrium (Please note: you should show your steps with necessary figures) Q1. Two beam sections are jointed at C and supported at A b ...

Questions -q1 a qualitative estimate of the effect of a

Questions - Q1. A qualitative estimate of the effect of a wind-tunnel contraction (Figure) on turbulent motion can be obtained by assuming that the angular momentum of eddies does not change through the contraction. Let ...

Assignment - machine learning for signal processingproblem

Assignment - Machine Learning for Signal Processing Problem 1: Instantaneous Source Separation 1. As you might have noticed from my long hair, I've got a rock spirit. However, for this homework I dabbled to compose a pie ...

Problem -a long pipe od 1413 mm id 1318 mm kp 20 wmk

Problem - A long pipe (OD = 141.3 mm, ID =131.8 mm, k p = 20 W/m.K) supplies hot pressurized liquid water at 400 K to a heater in a factory. The pipe has an insulation thickness of 100 mm. A new efficient heater replaces ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As