The type of first and second shock wave is weak while the last one is strong True False

9. Write types of steam trap operation by Temperature Balance

8. Write types of steam trap.

3. This energy given to convert a liquid into a gas is called isheat.

Page 4) Given: Steady-state-steady-flow of a compressible gas. A thin normal shock occurs and is shown for a control volume fixed on the wave. Relative flow at (1) approaches the shock from upstream and uniform relative flow at (2) movies away downstream of the shock. For this flow situation only the pressures and densities are known. The gas is not thermally perfect. Starting from 1st principles develop the following general relationship for the shock speed of a wave moving into a static fluid. This is the shock speed (left-right) viewed from the ground.

1. Consider the duct system connected to an air tank like the one shown in the figure. The system stationary discharges to the atmosphere at 101,325 kPa. Except for the indicated section, heat interactions can be neglected along the air path between the tank and the discharge. Friction effects can be neglected in all sections except the section where a length L is defined, and a friction factor is provided. No other internal irreversibility occurs in any of the pipelines. Relevant data for the solution of the problem are included in the image. a. Determine the temperature, in K, the velocity, in m / s, and the Mach number, at points 2 and 3 Determine the length, in cm, of the duct 2-3 Determine the Mach number, the velocity, in m/s, the local density, in kg / m3, at point 4Ma₁ = d. Determine the magnitude and direction of the heat transfer rate (output or input), in kW, induct 3-4 e. Determine the pressure, in kPa, at points 4, 3, and 2 f. Determine the pressure in the air tank, in kPa g. Determine the entropy ratio generated from the tank to the discharge, in W/K

10. Write types of steam trap operation by Kinetic energy

An oil pump is drawing 35 kW of electric power while pumping oil with p= 860 kg/m³ at a rate of 0.1 m³/s. The inlet and outlet diameters of the pipe are 8 cm and 12 cm, respectively. If the pressure rise of oil in the pump is measured to be 400 kPa and the motor efficiency is 90 percent,determine the mechanical efficiency of the pump.

3. (30 Pts) One kilogram of water is contained in a piston-cylinder device at atmospheric pressure and a room temperature of 30°C. The piston rests on lower stops such that the volume occupied by the space underneath the stops that contains the water is 0.835 m³. Heat is added while keeping the pressure in the lower chamber constant at atmospheric pressure till the water occupies the entire volume of the lower chamber. The cylinder is fitted with an upper set of stops. When the piston rests against the upper stops,the volume enclosed by the piston-cylinder device is 0.841 m³. A pressure of 200 kPa is required to support the piston. Heat is continued to be added to the water till the final pressure inside the chamber reaches300 kPa. A) Draw all the processes on the P-v diagram B) How much work does the water do? How much effective piston work do we get? C) What is the final thermodynamic state of water in the chamber? D) Find the required heat transfer to the water.