Difference Between Pump and Compressor (With Table)

Either a compressor or a pump is required at the time of movement of the hydraulic fluid through a specific system. Although both pump and compressed are made to achieve the goal of moving the hydraulic fluid, but there operating methods differ. Pumpers possess the potential in the movement of liquid and gases.

However, compressors are responsible for the movement of gases, as only gases can be compressed. In the case of both pumps and compressors, the pressure rises high. Many times, pump and compressors are used alternatively, despite having a key difference between them.

Pump vs Compressor

The difference between a pump and a compressor is that a pump is a type of machine that is responsible for the movement of a fluid from one area to another. Fluid, in this case, can be either liquid or gas. Whereas a compressor is a type of machine that is responsible for compressing a gas into a lesser volume. At the same time, it even pumps the gas somewhere else too.

Pumps are used for the movement of the fluids from one area to another at any height. Their main purpose is the transportation of liquid like oil, water, etc. In the case of the pump, the pressure is increased by moving on to a higher height. They do not have storage capacity. The energy of the incompressible fluid is mostly increased by the pumps.

Compressors are used basically to increase the potential energy, density and pressure of the fluid. Here, the pressure of the fluid is increased by the process of compression. Its main purpose is the transportation of gases. They possess storage capacity. The energy of the compressible fluid is mostly increased by the compressors.

Comparison Table Between Pump and Compressor

Parameters of ComparisonPumpCompressor
UsePumps are used for the movement of the fluids from one area to another at any height.Compressors are used basically to increase the potential energy, density and pressure of the fluid.
WayThe pressure is increased by moving on to a higher height.The pressure of the fluid is increased by the process of compression.
VolumeVolume remains constant from the inlet to the outlet of the pump. In the case of a compressor, the volume keeps on changing from the inlet to the outlet.
PurposeIts main purpose is the transportation of liquid like oil, water, etc.Its main purpose is the transportation of gases.
PressureThere are fifty perfect chances of change/unchanged of pressure.There are hundred per cent chances of a change of pressure.
EnergyThe energy of the incompressible fluid is mostly increased by the pumps.The energy of the compressible fluid is mostly increased by the compressors.
Storage CapacityPumps do not have storage capacity.Compressors have storage capacity.

What is Pump?

A device that possesses the potential to move fluids and slurries produced by mechanical action into hydraulic energy. The fluids are generally converted from electrical energy. Pumps can be of three major types. This classification is according to the methods used in the movement of the fluid. The three types are displacement, gravity pumps and direct lift.

Various energy sources, such as engines, wind power, electricity, manual operation, can be used in the operation process of the pumps. Pumps are available in the market in many sizes. There are large industrial pumps available for industrial use and microscopic pumps available for use in applications related to medicine.

There is another type of pump available, mechanical pumps. The use of mechanical pumps can be used extensively for various purposes such as aquarium filtering, aeration, pumping water (from Wells), pond filtering. They are also used for fuel injection and water-cooling in the case of the car industry. They are used for operating cooling towers, pumping natural gases and oil, air conditioning systems and ventilation in the energy industry. Similarly, they are used in the medical industry as well.

What is Compressor?

A mechanical device that has the potential to elevate the pressure of the fluid, or especially gas, by lowering its volume is a compressor. There are various types of gas compressor, a specific example of which is an air compressor. It is the work of the compressors to reduce the volume in the case of fluids.

However, some can be compressed some can not. Like, liquids can not be compressed. Compressors work stage wise. Which involves the compression process In several stages or steps. The main purpose behind the concept of working in the stage is to increase the discharge pressure.

Compressors are of three general types. They are centrifugal, positive displacement and axial. However, most frequently, the air is compressed. Industrially, the other gases such as oxygen, natural gas, nitrogen and other important gases are frequently compressed as well.

Main Differences Between Pump and Compressor

  1. Pumps are used for the movement of the fluids from one area to another at any height. Whereas compressors are used basically to increase the potential energy, density and pressure of the fluid.
  2. In the case of the pump, the pressure is increased by moving on to a higher height, whereas, in the case of a compressor, the pressure of the fluid is increased by the process of compression.
  3. Volume remains constant from the inlet to the outlet of the pump. However, in the case of a compressor, the volume keeps on changing from the inlet to the outlet.
  4. The pump’s main purpose is the transportation of liquid like oil, water, etc. Whereas a compressor’s main purpose is the transportation of gases.
  5. In a pump, there are fifty perfect chances of change/ unchanged of pressure. But in the compressor, there are hundred per cent chances of a change of pressure.
  6. The energy of the incompressible fluid is mostly increased by the pumps. Whereas the energy of the compressible fluid is mostly increased by the compressors.
  7. Pumps do not have storage capacity. But compressors possess storage capacity.

Conclusion

The machines like pumps and Compressors are hydraulic. These machines are used to enhance the energies of fluid. The main purpose behind the use of these machines is in the industrial sector and domestic sector. A pump is a machine that is used in the movement of liquid, water and gases. Additionally, it also increases their elevation.

Pumps are mostly used to supply gases, liquid and water from lower elevation to higher elevation. A compressor is a mechanical device, like a pump. However, compressors differ from the pump, as by compressing the fluid inside a closed container, the potential energy rises.

References

  1. https://www.scientific.net/AMM.630.397
  2. https://asmedigitalcollection.asme.org/IPC/proceedings-abstract/IPC1996/885/265895

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