How do you calculate reciprocating compressor capacity?

How do you calculate reciprocating compressor capacity?

In general the capacity of the compressor is given by the formula:

  1. Capacity = Π * D2 * L * N * n/4.
  2. R = Absolute suction pressure of the refrigerant/ absolute discharge pressure of the refrigerant.
  3. V = Actual volume of gas sucked by the compressor/ Theoretical volume of the compressor.

How does a reciprocating compressor operate?

During the first stage of compression, air moves into the cylinder via a suction valve, triggered by the movement of the piston. This creates a vacuum. The piston then reverses its motion, fulfilling the “reciprocating” part of the name, and begins compressing the air in the process.

What is reciprocating compressor in detail?

A reciprocating compressor or piston compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure. Pressures of up to 5,000 PSIG are commonly produced by multistage reciprocating compressors.

What are the main parts of reciprocating compressor?

Major components

  • Frame. The frame is a heavy, rugged housing containing all the rotating parts and on which the cylinder and crosshead guide is mounted.
  • Cylinder. The cylinder is a pressure vessel that contains the gas in the compression cycle.
  • Distance piece.
  • Crankshaft.
  • Piston.
  • Bearings.
  • Compressor valves.

What is piping reciprocating compressor?

In a reciprocating compressor, a volume of gas is drawn into a cylinder; it is trapped and compressed by a crankshaft-driven piston and then the high-pressure gas is discharged into the discharge line. It is a positive displacement machine.

How do you design a compressor?

Top 10 Things To Consider When Designing An Air Compressor System

  1. Air Compressor Type. First, you need to determine what type of air compressor is best suited for your project.
  2. Power & Drive System.
  3. Vibration Analysis.
  4. Temperature & Cooling.
  5. CFM.
  6. Safety Systems.
  7. Control System.
  8. Ease of access for service items.

What is the sequence of process in reciprocating air compressor?

The four parts of the cycle are compression, discharge, expansion and intake.

Why flywheel is used in reciprocating compressor?

Usually, flywheels are used in a reciprocating compressor to produce flywheel moment to balance the instantaneous acceleration or deceleration of crankshaft.

Where are reciprocating compressors used?

Reciprocating compressors are widely used in the chemical, oil, and gas industries for moving compressible fluids reliably.

What is the construction and operation of reciprocating compressor?

Construction and working of reciprocating compressor It consists of a piston, inlet-outlet valves, cylinder with an adequate cooling arrangement, connecting rod and crank. The pistons are fitted with piston rings to avoid gas leakage. Both valves are designed to quick and leak-free operation.

What is head-end and crank end?

Head. The ends of the cylinder are equipped with removable heads, these heads may contain water/liquid jacket for cooling. One end is called head-end head and other crank-end head. The crank-end contains packing (a set of metallic packing rings) to prevent gas leakage around the piston rod.

What is a compressor frame?

The compressor frame is the rugged casting that contains the rotating parts and on which the cylinders and crossheads are mounted. (Courtesy of Dresser-Rand Company.) Each frame is designed for a maximum number of cylinders. The frame itself does not indicate the number of stages or the duty of the compressor.

Where is the flywheel located?

Your vehicle’s flywheel is always located towards the engine’s rear, directly between your engine and transmission. The housing completely encases the flywheel, so you won’t see the whole thing unless you remove the engine’s transmission.