A rigid tank contains a saturated liquid-vapour mixture of water in an equilibrium state. The volume of the tank is 110 m3 and the temperature of the water in the tank is 115°C. In the tank, 70% of the mass is liquid and 30% of the mass is vapour. Please calculate the total mass of water in the tank.

Steel Structures: The rolling process is one of the most frequently used forming processes for producing steel sections. Nonetheless, other forming and fabrication processes can be used to create a range of section shapes in the steel production process. For this assignment, you are required to review the other four types of steel forming/fabricating processes including drawing (manufacturing), extrusion, casting and forging

Task 1: (IN YOUR WORDS)

Write (250 words), Review the extrusion process and mention the type of section(s) produced from this process. You should also mention the limitation(s) of this process.

Please be accurate in your answer

A turbine blade of solution annealed INCOLOY alloy 800 is 18 in long and operates at 1400 degrees Fahrenheit. If the tip clearance is 0.2 in and centrifugal forces induce an average longitudinal stress of 10 ksi. After how many hours is expected the blade to interfere with the turbine stator due to creep?

A fire-tube boiler made from carbon steel in which fuel gas flows within the tube while the boiler feed-water along with condensate from the plant flows on the shell-side. Visual inspection revealed heavily localized tubercles were seen on the outside surface of several tubes. After about 11 months of operation, the pipe was leaked and visual inspection found pin holes outside surface contain loose brownish rust. The rust contained chloride and was acidic in nature. Select appropriate corrosion prevention to apply and identify types of corrosion happen.

Give five examples and show how phychiometry play an important role in your daily life routine.

1) Saturated liquid water at a pressure of 10 kPa is sent to a steam boiler with a pressure of 4MPa with a reversible adiabatic pump and heated up to 500oC at constant pressure in the boiler. The mass flow of the steam is 4.2 kg / s. Transactions are carried out continuously.

a) Show the processes on the T-v or T-s diagram with saturated vapor and liquid curves.

b) Calculate the required pump power

c) Calculate the amount of heat spent per unit time in the boiler

i) A series of cold rolling operations are to be used to reduce the thickness of a metal plate from 50 mm to 20 mm in a reversing two-high mill. Roll diameter is 600 mm, and coefficient of friction between rolls and work is 0.15. The specification is that the draft is to be equal on each pass. Determine:

(a) Minimum number of passes required

(b) Draft for each pass

ii) Suppose that the percent reduction rather than the draft were specified to be equal for each pass.

(a) Determine the minimum number of passes required

(b) Determine the draft and exiting stock thickness for each pass

Explain and discuss what stall is and what causes an airfoil to stall. Why are commercial aircraft not allowed to fly at conditions near stall?

This is a heat transfer problem.

Question is the following;

You had been assigned, at General Motors, as design engineer to design a radiator ( Heat exchanger) for a new model car . It is necessary the the heat exchanger will be compact to fit within 2 feet by 3 feet space available in front of the car. IF the temperature of the incoming engine coolant is 150 degree Centigrade and outside temperature of air is about 38 C, what type of heat exchanger could reduce the temperature of the coolant to 40 C and find the surface area and number of the tubes necessary to do so. Select the Coolant properties as water. The coolant is circulated by water pump at rate of 0.5 kg/sec. Show all your work and justify the selection you made. Make all other engineering assumptions necessary for this design.

You might be surprised to know that each year vending machines kill more people in the USA (on average) than sharks do. Identify three different possible “accident” scenarios with vending machines and apply risk assessment criteria. Define the accident, state and defend your choice for severity and occurrence of each accident.

C4h10 fuel is burned in the cylinder with 150% corporate air powered by SI engine. The temperature and pressure at the start of combustion are 650 K and 1900 kPa, respectively. The exhaust temperature leaving the cylinder at the end of combustion is 1100K. So what is the Fuel / Air ratio (FA)? C = 12 H = 1 N = 14 O = 16

Explain and discuss what stall is and what causes an airfoil to stall. Why are commercial aircraft not allowed to fly at conditions near stall?

A 100 kW, 8-cylinder R-22 compressor with 20 kW power operates at zero & 40 C evaporating & condensing temps. The compressor bore 0.07 m & stroke 0.06 m with clearance volume of 5% runs at 30 rev/sec.
Determine:
a. Draw the PH diagram indicating all enthalpy & sp. vol.
b. Volumetric efficiency
c. Suction volume, m3/s
d. Piston displacement, m3/s
e. Actual volumetric efficiency
f. Actual work of compressor, kJ/kg
g. Isentropic work of compression, kJ/kg
h. Compression or adiabatic efficiency

A centrifugal pump has the following pressure - capacity characteristics:

It is planned to use this for a process having the following system characteristic:

(a) Determine the operating point for this pump with this system.

(b) The actual flowrate required by the process is 75 m³h ^–1 . If the overall efficiency of the pump at this flowrate is 70%, determine the power consumed when the liquid being pumped has a density of 1250 kgm^–3 .

(c) A second pump is available which has the following characteristics:

For the same flowrate (75 m³h ^–1 ), this pump has an overall efficiency of 75%.

(i) Determine the power used by this pump at a flowrate of 75 m³h ^–1 .

(ii) Would it be a better choice? Give reasons for your answer.

(iii) What other factors should be considered before a final choice is made?

Please can you write clearly as sometime i struggle to read what has been put and please can you be very detailed (put why you cancel something out, where a figure came from that wasnt provided etc) as i have seen a similar question answered with 5 different answers and none of them are the answers from an equation that they give.