+61-413 786 465

info@mywordsolution.com

## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

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

### 1 explain the term critical equipment and provide two clear

1. Explain the term "critical equipment" and provide two clear examples of machinery which falls into this category on board a twin screw motor vessel. 2. Explain the process of Charpy lmpact Testing including sample mar ...

### Question - truss structureconsider the three membered

Question - Truss Structure Consider the three membered planar truss structure shown in the figure below. All members of the truss have identical square cross-sectional area (A) of 25 mm x 25 mm, and Youngs Modulus (E) = ...

### Fluid mechanics assignment - viscous flow in pipesq1 as

Fluid Mechanics Assignment - Viscous Flow in Pipes Q1. As shown in the figure below, water "bubbles up" 3 in. above the exit of the vertical pipe attached to three horizontal pipe segments. The total length of the 0.75-i ...

### Alocate ten minutes for the presentationuse audio visual

Allocate ten minutes for the presentation Use audio / visual / technological supports / aids where appropriate Use a minimum of 3 properly referenced articles. THEMES PRESENTATION TOPIC MEMORY Discuss the three learning ...

### Problem on shaft -assuming no frictional losses a torque of

Problem on Shaft - Assuming no frictional losses, a torque of T = 750lb·in is applied through the shaft of gear F in order to drive the roller chain at point B at a constant speed. The chain sprocket has a pitch diameter ...

### 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 ...

### Structural mechanics questions -q1 a 150-lb bucket is

Structural Mechanics Questions - Q1. A 150-lb bucket is suspended from a cable on the wooden frame. Determine the resultant internal loadings on the cross section at D, and at E. Q2. The shaft is supported at its ends by ...

### 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 ...

### 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 ...

### 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 ...

• 13,132 Experts

## 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.

### 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