Thursday, January 21, 2010

Type Compressors.

In a positive-displacement type, number of air or gas in-traps in the compression space and is mechanically volumnya decreased, causing a certain pressure and then streamed out. At constant velocity, the air flow remains constant with variations in spending pressures.

Enegi dynamic compressor speed to provide air or gas flow is continuously using a rotating impeller at very high speeds. Velocity energy into pressure energy due to the influence of impeller and volute expenditure or diffusers. In the dynamic type of centrifugal compressor, the shape of the blade-blade impeller determine the relationship between air flow and pressure (or head) is raised.

Reciprocating compressors.

In the industry, most reciprocating compressors used to compress air and refrigerant.Prinsip both work like a bicycle pump with the flow out characteristics which remained almost constant in the range of a particular expenditure pressures. Also, the compressor capacity directly proportional to the velocity. Output, such as pulses.

Reciprocating compressors are available in various configurations; there are four types of the most widely used is the horizontal, vertical, horizontal balanceopposed, and tandem. Types of vertical reciprocating compressors used for the capacity between 50 to 150 cfm. Horizontally opposed compressor is used to balance capacity between 200 - 5000 cfm for multistage designs and up to 10.000 cfm single stage design (National Productivity Council, 1993).

Reciprocating air compressor is usually a single action where the emphasis is only using one side of the piston. Compressor that works using two sides of the piston is called the action is considered ganda.Sebuah compressor single stage compressor
if the whole emphasis is to use a single cylinder or a cylinder parallel.

Some application of compression performed on a stage. Ratio
compression that is too large (out of absolute pressure / pressure in absolute) can cause excessive temperatures ataumasalah expenditure other designs. Two-stage machines are used for high pressure usually has a temperature lower expenditure (140 to 160oC), whereas at one stage engine higher temperature (205 to 240oC).



Dynamic Compressor.

Centrifugal air compressor (see Figure 5-16) is a dynamic compressor, which depends on the transfer of energy from the impeller rotates in the air. Rotor do this work by changing moments and the air pressure. This moment changed to a certain pressure to decrease slowly in the air difuser static.

Centrifugal air compressors are designed compressor lubricant free. The lubricated gear lubricating oil is separated from the air by using sil separators on atmospheric and ventilation shaft. A centrifugal compressor works continuously, with few moving parts, more suitable for use in large volume in which oil-free is required on air.

Centrifugal air compressor with cooling water and can form packages; particular package including aftercooler and all controls. Compressor characteristic is known to differ when compared with the small reciprocating.Perubahan engine compression ratio to produce the large changes in the compression and efficiency. Centrifugal machine is more suitable for large capacity applied over 12.000 cfm.



In a positive-displacement type, number of air or gas in-traps in the compression space and is mechanically volumnya decreased, causing a certain pressure and then streamed out. At constant velocity, the air flow remains constant with variations in spending pressures.

Enegi dynamic compressor speed to provide air or gas flow is continuously using a rotating impeller at very high speeds. Velocity energy into pressure energy due to the influence of impeller and volute expenditure or diffusers. In the dynamic type of centrifugal compressor, the shape of the blade-blade impeller determine the relationship between air flow and pressure (or head) is raised.

Reciprocating compressors.

In the industry, most reciprocating compressors used to compress air and refrigerant.Prinsip both work like a bicycle pump with the flow out characteristics which remained almost constant in the range of a particular expenditure pressures. Also, the compressor capacity directly proportional to the velocity. Output, such as pulses.

Reciprocating compressors are available in various configurations; there are four types of the most widely used is the horizontal, vertical, horizontal balanceopposed, and tandem. Types of vertical reciprocating compressors used for the capacity between 50 to 150 cfm. Horizontally opposed compressor is used to balance capacity between 200 - 5000 cfm for multistage designs and up to 10.000 cfm single stage design (National Productivity Council, 1993).

Reciprocating air compressor is usually a single action where the emphasis is only using one side of the piston. Compressor that works using two sides of the piston is called the action is considered ganda.Sebuah compressor single stage compressor
if the whole emphasis is to use a single cylinder or a cylinder parallel.

Some application of compression performed on a stage. Ratio
compression that is too large (out of absolute pressure / pressure in absolute) can cause excessive temperatures ataumasalah expenditure other designs. Two-stage machines are used for high pressure usually has a temperature lower expenditure (140 to 160oC), whereas at one stage engine higher temperature (205 to 240oC).



Dynamic Compressor.

Centrifugal air compressor (see Figure 5-16) is a dynamic compressor, which depends on the transfer of energy from the impeller rotates in the air. Rotor do this work by changing moments and the air pressure. This moment changed to a certain pressure to decrease slowly in the air difuser static.

Centrifugal air compressors are designed compressor lubricant free. The lubricated gear lubricating oil is separated from the air by using sil separators on atmospheric and ventilation shaft. A centrifugal compressor works continuously, with few moving parts, more suitable for use in large volume in which oil-free is required on air.

Centrifugal air compressor with cooling water and can form packages; particular package including aftercooler and all controls. Compressor characteristic is known to differ when compared with the small reciprocating.Perubahan engine compression ratio to produce the large changes in the compression and efficiency. Centrifugal machine is more suitable for large capacity applied over 12.000 cfm.



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