Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

Problems and project:

1) The initial conditions for an air-standard Otto cycle operating with a compression ratio of 8:1 are 95 kPa and 17o C. At the beginning of the compression stroke, the cylinder volume is 2.20 L (1 L=0.001 m3) and 3.60 kJ of heat is added during the constant volume heating process. find out the pressure and temperature at end of each process of the cycle, and determine the thermal efficiency and mean effective pressure of the cycle.

2) An ideal Rankine cycle uses water as a working fluid, which circulates at a rate of 80 kg/s. The boiler pressure is 6 Mpa, and the condenser pressure is 10 kpa. The water enters the turbine at 600 C and leaves the condenser as a saturated liquid. Assume that the heat is transferred to the working fluid in the boiler from a reservoir at 1400 K and that the fluid in the condenser rejects heat to the surroundings at 25 C. find out the following quantities:

(i) The power required to operate the pump;
(ii) The heat-input rate to the water in the boiler;
(iii) The power developed by the turbine.

3) An ideal Brayton cycle uses air as a working fluid. The air enters the compressor at 101 kpa and 37 C. The pressure ratio of the compressor is 12:1, and the temperature of the air as it leaves the turbine is 497 C. The temperature and the pressure of the surroundings are 37 C and 100 kpa, respectively. Use the air-standard assumptions and determine the following quantities:

(i) The work per unit mass required operating the compressor;

(ii) The work per unit mass produced by the turbine;

(iii) The heat transfer per unit mass during the combustion process and during the exhaust process;

(iv) The irreversibility of the cycle on a unit-mass basis, assuming the temperature of the low- and high-temperature reservoirs are 37 C and 1300 C, respectively;

(v) The thermal efficiency of the cycle.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M968

Have any Question? 


Related Questions in Mechanical Engineering

Life cycle assessmentfor your chosen service eg white

LIFE CYCLE ASSESSMENT For your chosen service (e.g. white board markers), identify two alternatives of getting the service (e.g. brand A, brand B). Choose the most environmentally friendly option by conducting life cycle ...

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 ...

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 ...

Fluid mechanics assignment - finite control volume analysis

Fluid Mechanics Assignment - Finite Control Volume Analysis and Dimensional Analysis Q1. The wind blows through a 7ft × 10ft garage door opening with a speed of 5 ft/s as shown in the figure. Determine the average speed, ...

Life cycle assessmentfor your chosen service eg white board

LIFE CYCLE ASSESSMENT For your chosen service (e.g. white board markers), identify two alternatives of getting the service (e.g. brand A, brand B). Choose the most environmentally friendly option by conducting life cycle ...

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 ...

5star questions amp answers1a define heat treatment bname

5 STAR QUESTIONS & Answers 1. A) Define Heat treatment B) Name different types of heat treatment processes C) Write any 4 purposes of Heat treatment 2. Explain various Heat treatment processes 3. A) Compare Thermo plasti ...

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 ...

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 ...

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 ...

  • 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