pump compressor equation

Compressor Calculations: Rigorous Using Equation of State ,

Knowing compressor polytropic efficiency provided by the vendor calculate n by equation 6 (the 2nd one on the right hand side n= polytropic exponent 4 Use equation 7 to estimate the adiabatic efficiency (the Greek letter, mu)

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Pump and Compressor Operation - EOLSS

Pump or compressor units may be configured in series, parallel or a combination of both This will be the result of design decisions on type of driver, pump and compressor desired within constraints of available equipment and energy supply If flow requirements increase, the addition of new units may cause additional challenges if, for example, a turbine/centrifugal compressor is added to .

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How do pumps and air compressors work? - Explain that Stuff

A compressor is a machine that squeezes a gas into a smaller volume and (often) pumps it somewhere else at the same time Photo: Pump or compressor? If it has a pressure gauge on it and the pressure increases as you pump, technically it's also working as a compressor

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TOTAL HEAD, NPSH AND OTHER CALCULATION EXAMPLES ,

(determine the pump efficiency from the pump performance curve prior to doing this calculation) The power absorbed by the pump is given by equation[7] (see reference 1):

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Compressor Equation | Physics Forums

2009-08-13· Fred, from your equation a vacuum pump that has a 1bar/01bar pressure ratio needs more power than a compressor that has a ratio of 10bar/1bar? Is m the molecular weight or the volume? Is m the molecular weight or the volume?

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Pump Performance Curves and Similarity Laws

For a pump installation with this configuration to operate as intended, the right-hand-side of the above equation must be >the NPSH value for the operating flow rate for the pump Example A water supply tank and pump are connected as shown

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STEADY FLOW ENERGY EQUATION FOR A TURBINE AND A COMPRESSOR ,

2016-09-05· Now, let us see steady flow energy equation for a compressor Compressor is basically defined as one mechanical device which is used for increasing the pressure of fluid by securing the work energy from the surrounding

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123 The Euler Turbine Equation - webmitedu

Equation is called the Euler Turbine Equation It relates the temperature ratio (and hence the pressure ratio) across a turbine or compressor to the rotational speed and the change in momentum per unit mass Note that the velocities used in this equation are what we will later call absolute frame velocities (as opposed to relative frame velocities)

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HOW TO CALCULATE PRESSURE ANYWHERE IN A PUMP SYSTEM? ,

THE PUMP Equation [4] is the result of an energy balance between points 1 and 2 The same process of making an energy balance can be applied between any two points for example points 1 and X (see Figure 3) We can do an energy balance between points 1 .

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How To Read A Centrifugal Compressor Performance Curve ,

2018-08-31· Hi Ragothaman, BEP is based on the pump or compressor model, it will differ manufacturer to manufacturer The rated flow of pump or compressor is based on the operating condition required for purchaser or end user

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How to Calculate the Suction Pressure of a Pump | Sciencing

2018-11-26· Operating pumps move fluids in piping systems by creating a low suction pressure at the inlet side and a high discharge pressure at the outlet side You can calculate suction pressure expressed in feet for a water distribution system in the "United States Customary System Units" using suction pressure .

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How to Calculate the CFM of an Air Compressor | Hunker

Take the volume of the tank expressed in cubic feet (calculated in Step 2) and multiply it by the amount of pressure added during the tanks filling cycle in terms of atmospheric pressure (calculated in Step 6) This is the number of cubic feet that your compressor pumps in the time it ,

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Compressor Thermodynamics - grcnasagov

2015-05-05· The total temperature ratio Tt3 / Tt2 across the compressor is related to the pressure ratio by the isentropic flow equations Tt3 / Tt2 = (pt3 / pt2) ^((gam -1) / gam) where gam is the ratio of specific heats Work must be done to turn the shaft on which the compressor is mounted From the conservation of energy, the compressor work per mass of airflow CW is equal to the change in the .

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Positive Displacement Pump Calculations | PowerZone

Calculation of the flow rate of a plunger or piston pump based off of standard, measurable dimensions of a the pump plungers, and driver Maximum Operating Pressure Calculation of the maximum operating pressure for a power end of a piston or plunger pump based off of the rated rod load

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Reciprocating Compressor Calculation

Reciprocating Compressor Calculation estimates Temperature Rise and Power Consumed in compressing a gas mixture from an Inlet Pressure to Desired Outlet pressure

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Isentropic Efficiency - Turbine/Compressor/Nozzle

This ratio is known as the Isentropic Turbine/Compressor/Nozzle Efficiency These parameters describe how efficiently a turbine, compressor or nozzle approximates a corresponding isentropic device This parameter reduces the overall efficiency and work output

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123 The Euler Turbine Equation - webmitedu

Equation is called the Euler Turbine Equation It relates the temperature ratio (and hence the pressure ratio) across a turbine or compressor to the rotational speed and ,

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Coefficient of Performance / Industrial Heat Pumps

The efficiency of refrigeration systems and heat pumps is denoted by its Coefficient Of Performance (COP) The COP is determined by the ratio between energy usage of the compressor and the amount of useful cooling at the evaporator (for a refrigeration instalation) or useful heat extracted from the condensor (for a heat pump) A high COP value represents a high efficiency

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Simulation of Rotating Operations (Pump, Compressor ,

2016-07-10· Centrifugal compressor also can be used to represent a pump, when more rigorous pump calculation is required; in Hysys the pump operation assumes that the liquid is incompressible, so if you want to pump a liquid near to critical point (where it becomes compressible) here you can represent the pump by the centrifugal compressor

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Basic Compressed Air Formulas | Flodraulic Group

Example: 50 HP air compressor that runs 8 hours a day 5 days a week for a year with a $06 Kw electric rate and a 90% efficient electric motor 50 HP x 746 x 2,080 hours x $06 / 90 = $5,17226 per year Compressor RPM = motor pulley diameter x motor RPM / compressor pulley diameter

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Egnergy industrial compressed air calculators

Of course you will need to know the flow rating of your compressor to use the pump up time calculator effectively If you do not know the flow rating of your compressor or you would like to calculate the flow of the compressor you can use the compressor flow calculator below

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Useful Formulas- Air Compressor Formulas

Air Compressor Formulas : Free air if volumetric efficiency (%) and piston displacement are known: Free Air = piston displacement X eff (%) To find cubic feet of either compressed air or free air: cuft comp air X (psig + 147) = cuft free air X 147 cuft comp air [ Cubic Feet of Compressed Air ] cuft free air [ Cubic Feet of Free Air ] To convert gallons (tank size) to cubic feet .

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Compressor Calculations and Formulas - Lewis Systems Inc

Learn what you need to keep your systems running efficiently with our easy-to-use air compressor calculations and formulas tool

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Positive Displacement Pump Calculations | PowerZone

Calculation of the flow rate of a plunger or piston pump based off of standard, measurable dimensions of a the pump plungers, and driver Maximum Operating Pressure Calculation of the maximum operating pressure for a power end of a piston or plunger pump based off of the rated rod load

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