A Turbojet-engined aircraft flies at 350m/s at an altitude of 9000 m. The pressure at this height is 30 kPa and the temperature is-32⁰ C. The pressure ratio of the compressor is 12, the turbine input temperature is 1400 K. Air enters the compressor with a flow of 60 kg/s and the heat value of the fuel is 42 700 kJ/kg. Admitting that adiabatic efficiency of compressor, turbine and Lule is 100% and specific temperatures are constant at room temperature,
a) The speed at which the combustion end gases exit the engine,
b) Reaction force,
c) Calculate the amount of fuel consumed in Unit time. (k=1.4 Cp=1.005 kj/kgK )

In a gas turbine with two-stage compression and expansion, the total pressure ratio is 12. Air enters the compressor at a temperature of 320 K and the turbine at a temperature of 1320 K. The isanthropic efficiency of the compressors is 75%, the efficiency of the turbines is 87% and the regenerator is 78%. Considering the change of specific temperatures with temperature;
a) back work rate,
b) calculate the thermal efficiency of the cycle.

Project Communication Management is of utmost importance in the modern age with an array of technology tools available for use in projects. You may have had several experiences of projects suffering due to poor communication and documentation. Evaluate the importance of a good document management system for a project and explain 5 key strategies you would have as a project engineer to better control project documentation and communication.

You are using a silver spoon to stir water that just started boiling so that you can achieve a more even heat distribution in your water. The spoon is partially immersed in boiling water and a thermometer in your kitchen reads 27 °C. The handle of the spoon has a cross section of 2mm × 1cm and extends 15 cm in the air from the free surface of the water. The heat transfer coefficient at the exposed surfaces of the spoon handle is 3 W/m2×K.

A) Determine the temperature difference across the exposed surface of the spoon handle.

B) Can the lumped sum analysis be applied to the water as it cools? Provide justification to support your answer.

******Note:

Your answer must provide the following:

1. Assumptions: state all assumptions necessary to solve the problem, explain their relevance and

   validate them where necessary.

2. Schematic: draw a schematic showing the flow of energy in your system

3. What are the modes of heat transfer that the spoon is exposed to?

4. Is this a time dependent or steady state problem? Why or why not?

5. Is this a 1-D, 2-D or 3-D problem? Why or why not?

6. What is the thermal conductivity of the material? Can you assume it constant and if so, for what

   ranges?

7. The heat transfer coefficient is a function of many variables. Discuss the variables and whether the

   heat transfer coefficient can be assumed to be constant

8. What boundary condition are you applying and why?

9. Concluding remarks: explain the meaning of the answers obtained

The distance s(in m) above the ground for a projectile fired vertically upward with a velocity of 4(a) m/s as a function of time t(in s) is given by s=4(a)t-4.(b)t²

a= 6 b=9

Find the answers to these questions

1. find t for v=0

2. find v for t=4

3. find v for t=5

what conclusions can you draw?

Assignment 5 Directions: Read Chapter 8 of the text. This assignment will be divided in two parts (Part A and Part B), but will be submitted as one document - Make sure that you have also included the name of the assignment and your name on the assignment sheet. Text is FROM PRODUCTS TO SERVICES by Laurie Young.

· Part A. Differences in Product and Service Marketing Select 5 of the 10 subcategory descriptions of differentiating product and service marketing concepts found on pages 271-282 of the text, and compose a written report which highlights the difference between product and service marketing. Include either illustrations from the text or examples from your own experience that will provide support for your explanations. The assignment will be also assessed on proper spelling, grammar and paragraph organization. Part A should be a minimum of 3 pages in length (1.5 line spacing, 12 pt. type).

· Part B. Marketing Strategies There are 8 marketing strategies that are described on pages 289-301 of Chapter 8 of the text. Create a chart/table that summarizes the key points of this information that could be used as a quick reference for reviewing and selecting a marketing option. The chart/table should be organized to include the name of each strategy, a short description of each strategy, and one advantage and one disadvantage of each strategy. In addition to content, the assignment will be assessed on proper spelling and grammar, chart/table organization, labeling and identification. Write the answers on a word document and post it to the Dropbox Assignment 5 at D2L.

Discussion 3 Search the internet to find a marketing strategy that is NOT described on pages 289-301 of Chapter 8. Explain the strategy, advantages and disadvantages. Please include your source (e.g. the link of the website). Post your findings to the discussion board and Respond to your classmates

1. In terms of Engineering Ethics, how and when do conflicts of interest arise? Give an example.

7.4 A complex Brayton-cycle power plant using intercooling, reheat, and regeneration is analyzed using the air standard method. Air is compressed from State 1 to State 2 using a compressor with a pressure ratio of RP1. An intercooler is used to cool the air to State 3 before entering a second compressor with a pressure ratio of RP2. The compressed air exits at State 4 and is preheated in a regenerator that uses the exhaust air from the low-pressure turbine. The preheated air enters the combustor at State 5 and is heated to State 6 where it enters the high-pressure turbine. The air exits the turbine at State 7 and is heated in a reheat combustor to State 8. The air expands in a low-pressure turbine to State 9 where it enters the counterflow regenerator with the effectiveness of RE. Given the specified operating conditions determine the efficiency and other values listed below.

--Given Values--

T1 &T3 (K) = 303

P1 (kPa) = 186

rp1 = 2.7

rp2 = 4.4

Eff (%) = 92

T6 & T8 (K) = 1300

P7 (kPa) = 906

a) Determine the specific enthalpy (kJ/kg) at state 1.

b) Determine the relative pressure at state 1.

c) Determine the relative pressure at state 2.

e) Determine the pressure (kPa) at state 2.

f) Determine the specific enthalpy (kJ/kg) at state 2.

g) Determine the pressure (kPa) at state 3.

h) Determine the specific enthalpy (kJ/kg) at state 3.

i) Determine the relative pressure at state 3.

j) Determine the relative pressure at state 4.

k) Determine the temperature (K) at state 4

l) Determine the pressure (kPa) at state 4.

m) Determine the specific enthalpy (kJ/kg) at state 4.

n) Determine the specific enthalpy (kJ/kg) at state 5.

o) Determine the specific enthalpy (kJ/kg) at state 6.

p) Determine the relative pressure at state 6.

q) Determine the relative pressure at state 7.

r) Determine the temperature (K) at state 7.

s) Determine the specific enthalpy (kJ/kg) at state 7.

t) Determine the specific enthalpy (kJ/kg) at state 8.

u) Determine the relative pressure at state 8.

v) Determine the relative pressure at state 9.

w) Determine the specific enthalpy (kJ/kg) at state 9.

x) Determine the net work per unit mass (kJ/kg) through the power plant.

y) Determine the heat addition per unit mass (kJ/kg) through the power plant.

z) Determine the efficiency () of the power plant.

Prove that the adiabatic process of an ideal gas in a simple compressible closed system is the polytropic process of n=k ( where k is the specific heat rate) by using the thermodynamic first law.

Please answer quickly will rate positive thank u

1040 steel

1.What is the composition of the material? (10P)

2.What is the typical applications of the material? (10P)

3.What is the most common hardness measurement method for the material? What is the hardness values for the material after different heat treatments. Put some microstructures and discuss the hardness values differences (at least 3 different heat treatment) (20P)

4.What is the typical UTS, yield strenght and strain values of the material for 3 different heat treatments (any). Put some microstructures and discuss the mechanical properties differences (at least 3 different heat treatment). (20P)

5.What is the typical impact energy value of the material for 3 different heat treatments (any). Put some microstructures and discuss the impact energy differences. (20P)

how I can select the type of lubricant and the lubrication method for bearing ?

answer it all or leave it for another expert , Use table or catalog not typing a google theory and post it here please need to select for design !

my topic is "mudguard fender of motorbike"
this is the product i seleted.
so i want " structural Analysis " for mudguard fender of motorbike

my topic is "mudguard fender of motorbike"
this is the product i seleted.
so i want " Need Reognition " for mudguard fender of motorbike

my topic is "mudguard fender of motorbike"
this is the product i seleted.
so i want " Functional specifications/Requirements " for mudguard fender of motorbike