Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

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

Gas turbine engines are mostly seen in aircraft while

Gas turbine engines are mostly seen in aircraft, while piston combustion engines are mostly seen in ground vehicles. Which advantages and disadvantages of these engines have caused them to be favorable for their respecti ...

Rework given problem if the plates are circular and have

Rework given Problem. if the plates are circular and have radius L. Problem :- Two very long parallel plates of length 2L are separated a distance b. The upper plate moves downward at a constant rate V. A fluid fills the ...

1 discuss the four best-known practical methods of

1. Discuss the four best-known practical methods of generating residual magnetism. 2. Discuss the advantages of a matrix partition to represent the transient state of an aggregation of SEIGs. 3. Using the state variable ...

Leaning polea pole of negligible mass leans against a wall

Leaning pole A pole of negligible mass leans against a wall, at angle ? with the horizontal. Gravity is directed down (a) Find the constraint relating the vertical acceleration of one end to the horizontal acceleration o ...

A distribution function such as the maxwell-boltzmann

A distribution function such as the Maxwell-Boltzmann distribution can be described in terms of moments, where the nth moment of a distribution P(x) is written (he moment does not have to be evaluated relative to the mea ...

1 if the design load is 90 kn 20300 lbf what is the dead

1. If the design load is 90 kN (20,300 lbf), what is the dead load and what is the intensity of the dead load in the light of the live load calculation of Problem CS1.1? 2. Determine the specific weight of lightweight co ...

The number of molecules crossing a unit area per unit time

The number of molecules crossing a unit area per unit time in one direction is given by where n is the number of molecules per unit volume and v is the average molecular velocity. As the average molecular velocity is app ...

1 two clean and parallel glass plates separated by a gap of

1. Two clean and parallel glass plates, separated by a gap of 1.625 mm, are dipped in water. If σ = 0.0735 N/m, determine how high the water will rise. 2. A glass tube having an inside diameter of 0.25 mm and an outside ...

The average heat evolved by the oxidation of foodstuffs in

The average heat evolved by the oxidation of foodstuffs in an average adult per hour per kilogram of body weight is 7.20 kJ kg-1 hr -1 . Assume the weight of an average adult is 62.0 kg. Suppose the total heat evolved by ...

For the experimental pump data given belowqflow rate

For the experimental pump data given below: Q F low Rat e ( ???? /s) ???? Total Pressure (kPa) P IN Shaft power (kW) 0.0000 504.82 1.190 0.0004 481.50 1.318 0.0008 476.70 1.573 0.0012 471.50 1.828 0.0017 461.00 2.083 0.0 ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro