code and plot Thermodynamics question to get result.

Q) In a water cooling tower air enters at a height of 1 m above the ground level and leaves at a height of 7

m. The inlet and outlet velocities are 20 m/s and 30 m/s respectively. Water enters at a height of 8 m and

leaves at a height of 0.8 m. The velocity of water at entry and exit are 3 m/s and 1 m/s respectively. Water

temperatures are 80 °C and 50 °C at the entry and exit respectively. Air temperatures are 30 °C and 70 °C

at the entry and exit respectively. The cooling tower is well insulated and a fan of 2.25 kW drives the ait

through the cooler. Find the amount of air per second required for 1 kg/s of water flow. Cp,air=1.005

kJ/kgK, Cwater-4.187 kJ/kgK.

Solve the above problem numerically and plot the following graphs:

a) Dependence of air flow rate on inlet and outlet temperature of air streams.

b) Dependence of air flow rate on inlet and outlet velocities of air streams.

c) Dependence of air flow rate on inlet and outlet velocities of water streams.

d) Dependence of air flow rate on inlet and outlet temperature of water streams.

The code, schematic diagram and required plots.

[Sam Chak]

Hi @vikram kumar

Can you show the maths based on the Thermodynamics principles described above?

[vikram kumar]

i dont know i will try to find and upload

Answer 1

[Montazer Fadil]

Q) In a water cooling tower air enters at a height of 1 m above the ground level and leaves at a height of 7 m. The inlet and outlet velocities are 20 m/s and 30 m/s respectively. Water enters at a height of 8 m and leaves at a height of 0.8 m. The velocity of water at entry and exit are 3 m/s and 1 m/s respectively. Water temperatures are 80 °C and 50 °C at the entry and exit respectively. Air temperatures are 30 °C and 70 °C at the entry and exit respectively. The cooling tower is well insulated and a fan of 2.25 kW drives the ait through the cooler. Find the amount of air per second required for 1 kg/s of water flow. Cp,air=1.005