How do I know what pressure my outlet is?

1. Inlet Velocity V1. V1 = Q/(A1 × ρ) V1 = 40/(0.00502 × 1000) = 7.968 m/s.
2. Outlet Velocity V2. V2 = Q/(A2 × ρ) V2 = 40/(0.015 × 1000) = 2.67 m/s.
3. Outlet Pressure Calc. Inlet Pressure P1 = 0.5 bar = 50000 pa. Inlet head h1 = 0 m. Outlet head h2 = 2m. Gravity = 9.81. gh1+ 1/2 V1^2+ (P1/ρ) = gh2+ 1/2 V2^2+ (P2/ρ)

What is inlet and outlet pressure?

The pressure inlet boundary condition defines an inflow condition based on the known pressure value (P) at the boundary. It is used when no flow rate is known, or if a flow rate (or velocity) is assigned at the outlet.

Why is inlet pressure greater than outlet pressure?

So to summarize: a pump delivers flow, its outlet pressure rise above inlet is simply a result of the externally imposed resistance to flow.

What is the pressure at the outlet of a refrigerant compressor?

Discharge pressure
3. What is the pressure at the outlet of a refrigerant compressor? Explanation: The absolute pressure at which the refrigerant comes out of the compressor is called Discharge pressure.

Is pressure higher at the inlet and outlet of a pump?

Pump Inlet is generally larger than outlet, because of the low pressure of inlet , water density is small, flow is slow, in order to meet the water supply balance requirements and ensure that the entrance has a certain pressure head, to prevent cavitation, the inlet is larger.

What is pressure boundary condition?

Pressure boundaries represent such things as confined reservoirs of fluid, ambient laboratory conditions, and applied pressures arising from mechanical devices. Generally, a pressure condition cannot be used at a boundary where velocities are also specified, because velocities are influenced by pressure gradients.

What does Txv mean in HVAC?

thermostatic expansion valve
A thermostatic expansion valve (TXV) (see Figure 1) is a refrigeration and air conditioning throttling device that controls the amount of refrigerant liquid injected into a system’s evaporator—based on the evaporator outlet temperature and pressure—called the superheat.

What is the refrigerant number of water?

What is the refrigerant number of Water? Clarification: Water is having refrigerant number as R – 118.