Ejector Design Calculation Xls Link Today

| | Value | Unit | | --- | --- | --- | | Fluid Properties | | | | Density | 1.2 | kg/m³ | | Viscosity | 0.018 | Pa·s | | Specific Heat Ratio | 1.4 | | | Flow Rates | | | | High-Pressure Fluid Flow Rate | 1 | kg/s | | Fluid to be Evacuated Flow Rate | 0.5 | kg/s | | Pressure Conditions | | | | Inlet Pressure | 100 | kPa | | Outlet Pressure | 10 | kPa | | Nozzle Design | | | | Nozzle Throat Diameter | 0.01 | m | | Nozzle Exit Diameter | 0.05 | m | | Mixing Chamber Design | | | | Mixing Chamber Length | 0.1 | m | | Mixing Chamber Diameter | 0.05 | m | | Diffuser Design | | | | Diffuser Length | 0.1 | m | | Diffuser Diameter | 0.05 | m |

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An ejector uses a high-pressure motive fluid to entrain a low-pressure suction fluid, discharging at an intermediate pressure. Common applications include: | | Value | Unit | | ---

Determined as a function of the combined flow rates, pressures, and molecular weights of both fluids. Entrainment Ratio ( Entrainment Ratio ( Calculating the design of an

Calculating the design of an ejector involves determining the geometric dimensions—such as nozzle throat and mixing tube diameters—and performance variables like the entrainment ratio based on the properties of the motive and suction fluids 1. Define Design Inputs

w=A×ErB×PcC×PdD×e(E+Fln(Pp)+G+Hln(Pc))w equals cap A cross cap E r to the cap B-th power cross cap P sub c to the cap C-th power cross cap P sub d to the cap D-th power cross e raised to the open paren cap E plus cap F l n open paren cap P sub p close paren plus cap G plus cap H l n open paren cap P sub c close paren close paren power (Where is the Expansion Ratio, Pccap P sub c is condenser pressure, and Ppcap P sub p is motive pressure) . Nozzle Throat Area ( A1cap A sub 1