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Difference between revisions of "After Cooling Dryers"
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[[File:Air-cooled++After+Cooler.jpg|thumb|right|200px|After Cooling Dryer]] | [[File:Air-cooled++After+Cooler.jpg|thumb|right|200px|After Cooling Dryer]] | ||
The '''After Cooling Dryers''' is designed to cool down compressed air to assist with the removal of condensate. | The '''After Cooling Dryers''' is designed to cool down compressed air to assist with the removal of condensate. | ||
==Definition== | ==Definition== | ||
The '''After Cooling Dryers''' are the cheapest form of removal of condensate (water vapour that has condensed back to water) from compressed air. Aftercoolers are not normally needed on new compressors as most new machines are fitted with them as standard. However, some are undersized for Australian conditions and in certain circumstances you may need an additional aftercooler in your compressed air system. | The '''After Cooling Dryers''' are the cheapest form of removal of condensate (water vapour that has condensed back to water) from compressed air. Aftercoolers are not normally needed on new compressors as most new machines are fitted with them as standard. However, some are undersized for Australian conditions and in certain circumstances you may need an additional aftercooler in your compressed air system. | ||
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Water vapour that is in the air gets heated up and turned to steam whilst it is being compressed. As soon as it touches your cold pipework it condenses back into liquid water. An aftercooler makes the cooling happen in a predetermined place, making the separation and removal of water easy. | Water vapour that is in the air gets heated up and turned to steam whilst it is being compressed. As soon as it touches your cold pipework it condenses back into liquid water. An aftercooler makes the cooling happen in a predetermined place, making the separation and removal of water easy. | ||
Their limit is the ambient temperature, as this is the cooling medium or "energy" that is cooling the air. A refrigerated or dessicant dryer may also be necessary if an aftercooler does not produce dry enough air. | Their limit is the ambient temperature, as this is the cooling medium or "energy" that is cooling the air. A refrigerated or dessicant dryer may also be necessary if an aftercooler does not produce dry enough air. | ||
==Advantage== | ==Advantage== | ||
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* Reduces rust inside the air tools | * Reduces rust inside the air tools | ||
* Reduces likelihood of water getting into products | * Reduces likelihood of water getting into products | ||
==Why Should Use== | ==Why Should Use== | ||
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* It can be matched up to suit your reciprocating or rotary vane compressor because those compressors were often originally sold without an aftercooler. | * It can be matched up to suit your reciprocating or rotary vane compressor because those compressors were often originally sold without an aftercooler. | ||
* These are the first stage in removal of condensate from compressed air. | * These are the first stage in removal of condensate from compressed air. | ||
==Prime Function== | ==Prime Function== | ||
Aftercoolers typically remove about 70% of the water vapour from compressed air, if they are correctly sized to do the job. Aftercoolers can be air or water cooled. Aftercoolers can only cool the compressed air to within a few degrees of the cooling medium (air or water). To size an aftercooler properly a number of considerations and readings must be taken from the proposed site | Aftercoolers typically remove about 70% of the water vapour from compressed air, if they are correctly sized to do the job. Aftercoolers can be air or water cooled. Aftercoolers can only cool the compressed air to within a few degrees of the cooling medium (air or water). To size an aftercooler properly a number of considerations and readings must be taken from the proposed site. | ||