formula for compressor power calculation

Air Conditioning Calculations

Air Conditioning Calculations. When choosing an air conditioner, usually a 1 HP (horse power) equipment is able to remove 9,000 BTU/hr of heat. With better technology, some machines are able to remove 10,000 BTU/hr of heat with the same capacity. The higher the

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The methodology of the gas turbine efficiency calculation

The methodology of the gas turbine efficiency calculation 21 Superscripts C compressor p polytropic T turbine η efficiency µ˜ polytropic exponent 1 Introduction Gas turbines are the machines consisting of the air compressor and the expander, mostly connected together bycommon shaft, and of a combustion chamber placed between them.

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How do you calculate horse power of compressor Answers

May 23, 2013 · To calculate the horse power of a compressor one would need to use the following calculation. Pump ratio x GPM @ 100 psi = CFM. For a gas compressor divide CFM by 2 and for an electric compressor

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Air Compressor Theory Air Compression Cycle & Formula

Basic Theory of Compressing Air The air we breathe has two major constituents. They are Nitrogen and Oxygen. The approximate composition of atmospheric air has 78% nitrogen, 21% oxygen and 1% other gases by volume and 76% nitrogen, 23% oxygen and 1% other gases by

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Author eHow

Calculating and Measuring the Air Requirement Atlas

Compressor capacity is essentially determined by the total nominal compressed air requirement. The compressors' free output flow rate should cover this rate of air consumption. The calculated reserve capacity is primarily determined by the cost of lost production resulting from

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CENTRIFUGAL COMPRESSOR CALCULATION SHEET

CENTRIFUGAL COMPRESSOR CALCULATION SHEET a. WITHOUT CONSIDERING DETAIL OF IMPELLER INPUT GIVEN CONDITION OR QUANTITY IN RED COLOR CELLS WITH INTERCOOLER FLOW CHART Fill gas condition, Provide polytopic Calculate flowrate and pro- eficiency from PR perties from gas pro- Fig. 11 (n-1) / n perties calculation (Efp) n / (n-1) sheet

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Pump Power Calculator Online Calculator Engineering

Pump Power Calculator in imperial Units/SI Units. P = power depend on kW, H = head, m, Q = flow, m3/hr, SG = specific gravity, η= pump efficiency, decimal. Engineering Units

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Cost of Compressed Air Formula

Cost of Compressed Air Formula To calculate the cost of compressed air, use the following formula Cost ($/year) = motor bhp x .746 x hours of operation (per year) x electric rate ($/kwh) / motor efficiency

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Compressor Calculator Find your Compressor RIX

Compressor Finder & Calculator This calculator will help you determine your power requirements, as well as how many compression stages you will need for your process conditions. The finder will select the best match from our line of standard compressors, but we can also design a custom solution to meet any requirement.

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A Method To Estimate The Performance Of

This new formula takes mainly account of the compression ratio, depending of refrigerant and operating condition, and includes the clearance volume ratio, depending of the compressor features. The formula has also coefficients of correction, and takes account of the polytropic exponent and the evaporating temperature in degree Celsius τ τ ε γ

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Approximate Power Calculation of Compressors

Jan 19, 2007 · But just as an approximate solution (without considering the parameters such as specific heat ratio, compressibility of gas, and ), which one of the following is correct? Power consumption of a compressor is proportional to 1. (flow rate).(discharge pressure-suction pressure) 2. (flow rate).{ln(discharge presure/suction pressure)}

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Ariel Calculation Method Natural Gas Compressor

Ariel Calculation Method . The Ariel Performance Software includes calculations for predicting the flow, power, temperatures, pressures, gas rod loads, crosshead pin load reversals as well as other values for the predictions and limitations of the compressor applications.

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Reciprocating Compressor Rating CheCalc

Reciprocating Compressor Rating estimates capacity, power required for compressing a gas mixture from an Inlet Pressure to Desired Outlet pressure for a given cylinder diameter, rod

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How to calculate the power consumption of a refrigerator

A properly functioning residential refrigerator compressor operates on 120v and uses between 1.0 and 1.25 amps. Power=Amps x Volts x Power Factor. Any refrigerator built in the last 15 years has a run capacitor, so the Power Factor = about 1. 1.0A x 120v x 1 = 120 watts. 1.25A x 120v x 1 = 150 watts. Of course the compressor doesn't run all day.

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Pump Power Calculation Neutrium

Jul 09, 2012 · Pump Power Calculation. Power is consumed by a pump, fan or compressor in order to move and increase the pressure of a fluid. The power requirement of the pump depends on a number of factors including the pump and motor efficiency, the differential pressure

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Horsepower Calculator IronLine Compression

Horsepower Calculator. The following calculation method uses the Gas Processors Suppliers Association Engineering Data Book Eleventh Edition, FPS Version, 1998, eq 13-4 developed for large slow speed (300-450 RPM) compressors with SG = 0.65 and having CR > 2.50. Discharge temperature based on eq 13-18 assuming 130 Deg F inlet and k of 1.3.

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Useful Formulas- Air Compressor Formulas

To find cubic feet of either compressed air or free air cu.ft. comp. air X (psig + 14.7) = cu.ft. free air X 14.7 cu.ft. comp. air [ Cubic Feet of Compressed Air ]

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Air Compressor Theory Air Compression Cycle & Formula

Basic Theory of Compressing Air The air we breathe has two major constituents. They are Nitrogen and Oxygen. The approximate composition of atmospheric air has 78% nitrogen, 21% oxygen and 1% other gases by volume and 76% nitrogen, 23% oxygen and 1% other gases by

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Three Phase Current Simple Calculation

The calculation of current in a three phase system has been brought up on our forums and is a discussion I seem to get involved in every now and again. While some colleagues prefer to remember formulas or factors, my approach is to do resolve the

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How to Calculate the Electrical Cost of an Air Compressor

Video of the Day. Calculate the compressor's power consumption. The wattage rating is usually stamped on the motor's metal nameplate. In instances when only the amperage rating is given, determine watts used by multiplying the voltage by the number of amps. For a compressor operating on standard current, the voltage is 110.

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Measuring Work, Power and Volume Rate of Flow

For free air delivery (FAD) the compressor's output flow rate is recalculated to a free air volume rate at the standard inlet condition (inlet pressure 1 bar(a) and inlet temperature 20°C). The relation between the two volume rates of flow is (note that the simplified formula above does not account for humidity).

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WEN Technology Calculators

Power-Torque Torque (lb) = 63,025 x Power (HP) / Speed (RPM) Power (HP) = Torque (lb) x Speed (RPM) / 63,025. Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM)

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Calculate compressor efficiency Physics Forums

Oct 04, 2012 · I am struggling with how a compressor's efficiency is calculated. This is the set up I have a Garrett T3 compressor housing being spun by an electric motor. I can measure the airflow in, the airflow out, the pressure and temperature on both sides of the compressor, the power

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Electric Motor Horsepower How to calculate electric motor

Electric Motor Horsepower How to calculate electric motor HP using RLA, Amps or Watts. We explain the relationship between rated load amps (RLA), and full load amps (FLA) and lock rotor amps (LRA) ratings on electric motors. These electric motor horsepower formulas, definitions, and ratings are suitable for determining the horsepower of an air conditioner compressor motor, a fan motor, a well pump motor

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Reciprocating Compressor Piston Rod Load Principle and

Sep 07, 2019 · Reciprocating Compressor Piston Rod Load Calculation method. For calculation of piston, rod load is consist of three steps. Step 1 First, we find the gas load act on the piston. As discussed above by using the above two equation the gas load act on the piston is calculated for every 5 o of one crank revolution. The Blue color line represents the gas load act on the piston.

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Lecture on Compressor

To calculate indicated work/power To obtain compressor efficiency To calculate free air delivery rate (kg/s or m. 3 /s) The Analysis Objectives . The primary components of a typical reciprocating compressor system can be seen in Figures. The compression cylinders, also

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Reciprocating compressor power calculation pdf

capacity of a compressor in terms of the air flow it can handle.Two case studies on reciprocating compressors, involving. reciprocating compressor efficiency calculation Figure 17 rcd 510 pdf Type of.Calculate the required displacement rate and power input of

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How To Calculate Compressed Air Savings Design World

Jan 12, 2013 · How To Calculate Compressed Air Savings. A 100-hp compressor requires about $37,000 in annual electrical costs at 10 cents per kWh with a five-day, two-shift operation of about 4200 hours per year. Over a 10-year period, these costs can represent about 76% or more of the total life cycle cost of the air compressor,

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How to Estimate Compressor Efficiency PetroSkills

The power calculation should be made per stage of compression and then summed for all stages connected to a single driver. The step-by-step calculation for shortcut method. a. Calculate the isentropic exponent (k) by Equation 3 using the average temperature defined by T = (T 1 +3T 2)/4. This form of average temperature was defined to obtain better match between the rigorous and shortcut method

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Work Done By a Reciprocating Compressor

POWER REQUIRED. The power required to drive a single acting reciprocating compressor is. P = W N w / 60. where, N the speed of the compressor in rpm, N w the no. of working strokes per minute. N w = N for a single acting compressor, = 2N for a double acting compressor. and W denotes the work done by the compressor. In general,

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