Thermo Fluid Mechanics - Adiabatic Turbine - Engineering Assignment Help

Assignment Task :

Module Name: Thermofluid Mechanics

Q1. A 10 kg/s steam inters into a turbine at 4 MPa pressure, 500°C temperature and 80 m/s velocity. The pressure, quality and velocity of the steam when it exits from the turbine are 30 kPa, 0.92, and 50 m/s, respectively. Assuming an adiabatic turbine and with the additional necessary assumptions determine,

1. The power output of the turbine 

2. The total kinetic energy change 

3. The outlet area of the turbine  

4. Discuss intuitively the change in output of the turbine if the pressure at the outlet is 100 kPa maintaining the other given output values with the same value. Does the power output increase or decrease? Why?  

Q2. Water flows in 0.2 cm diameter and 15 m long horizontal pipe with average velocity of 1 m/s. By discribing the the necessary assumptions, determine,

1. the pressure drope,  

2. the head loss, 

3. the pumping power required.  

If water flows in the upward direction with the pipe inclination of 20° from the horizontal, determine the flow rate.

Q3. A rigid container contains a refrigerant-134a at 400 kPa (see Figure Q3). The volume of the container is 200 liter, and the mass of the refrigerant is 10 kg. As heat is added into the container the pressure in the container has increased to 700 kPa.

1. Determine the temperature inside the container when heating is completed. (10 marks)

2. The total enthalpy when the heating process is completed

Q4. Determination of viscosity of three fluids (cooking oil, Engine oil, Glycerol).

• Complete the table of the three liquids using the formulas given and compare your result with the average kinematic viscosity available in literature. Include sample calculations in your report to show how you arrived into the result. (10 marks)
• Discuss about viscosity (dynamic & kinematic) and compare the nature of the viscosity of the three liquids based on your result. Discuss also on the viscosity variation between your experimental result and literature values. Include your conclusion on your experimental results and why there are variations between your result and the values you referred on literature.

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