Refrigerated Dryers - Revision history

Helal at 11:49, 2 August 2012

2012-08-02T11:49:35Z

← Older revision		Revision as of 05:49, 2 August 2012
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	[[File:Refrigerated_Dryers_1.jpg\|right\|thumb\|200px\|Refrigerated Dryers 1]]		[[File:Refrigerated_Dryers_1.jpg\|right\|thumb\|200px\|Refrigerated Dryers]]
	[[File:Refrigerated_Dryers_2.jpg\|right\|thumb\|200px\|Refrigerated Dryers 2]]		[[File:Refrigerated_Dryers_2.jpg\|right\|thumb\|200px\|Refrigerated Dryers]]
	The '''Refrigerated Dryers''' are designed for installations where pipeline temperatures are not expected to go below 35°F.		The '''Refrigerated Dryers''' are designed for installations where pipeline temperatures are not expected to go below 35°F.

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	===Function===		==Function==
	Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air to refrigeration. However, there is also a single heat exchanger that combines both functions. The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.		Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air to refrigeration. However, there is also a single heat exchanger that combines both functions. The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.


	===Classification===		==Classification==
	There are several types of Refrigerated Dryers exist in the global market. These are:		There are several types of Refrigerated Dryers exist in the global market. These are:


	* Cycling Regrigerated Air Dryers		* Cycling Regrigerated Air Dryers
	* Non-Cycling Refrigerated Air Dryers		* Non-Cycling Refrigerated Air Dryers

Helal at 14:34, 30 July 2012

2012-07-30T14:34:09Z

← Older revision		Revision as of 08:34, 30 July 2012
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	===Function===		===Function===
	Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air to refrigeration. However, there is also a single heat exchanger that combines both functions. The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.		Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air to refrigeration. However, there is also a single heat exchanger that combines both functions. The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.
	As of the year 2000, most manufacturers started producing energy saving dryers that do not make use of a hot-gas by pass. These dryers can save up to 40% in total energy and can consume only 10% of the max power when idle. They employ digital control and sometimes variable speed compressors.
	~~Some manufacturers are marketing compressors with built in refrigeration dryers, but these have had a mixed acceptance in the market.~~
	Commonly a coalesing prefilter is installed immediately upstream of a refrigerated dryer to remove lubricating oil and other contaminants that have the potential to foul the dryer's heat exchangers.


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	* Non-Cycling Refrigerated Air Dryers		* Non-Cycling Refrigerated Air Dryers
	* High Inlet Temperature Refrigerated Air Dryers		* High Inlet Temperature Refrigerated Air Dryers
	~~==Cycling Regrigerated Air Dryers==~~


			==Cycling Regrigerated Air Dryers==
	It will increase or decrease the refrigeration compressor load depending on the compressed air demands. These dryers will help save money by reducing power consumption while constantly providing consistent dew points.		It will increase or decrease the refrigeration compressor load depending on the compressed air demands. These dryers will help save money by reducing power consumption while constantly providing consistent dew points.

Helal at 14:31, 30 July 2012

2012-07-30T14:31:44Z

Helal at 14:28, 30 July 2012

2012-07-30T14:28:57Z

← Older revision		Revision as of 08:28, 30 July 2012
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	* Please start editing this page after the /noinclude		* Please start editing this page after the /noinclude
	* -------------------------------------------------></noinclude>		* -------------------------------------------------></noinclude>
	[[File:~~PIC_Stationary_Dryers_Refrigerated_lrg~~.jpg\|right\|thumb\|200px\|Refrigerated ~~Dryer~~]]		[[File:Refrigerated_Dryers_1.jpg\|right\|thumb\|200px\|Refrigerated Dryers 1]]
	[[File:~~Refrigerated-dryer-1zoom~~.jpg\|right\|thumb\|200px\|Refrigerated ~~Dryer~~ 2]]		[[File:Refrigerated_Dryers_2.jpg\|right\|thumb\|200px\|Refrigerated Dryers 2]]
	The '''Refrigerated Dryers''' are designed for installations where pipeline temperatures are not expected to go below 35°F.		The '''Refrigerated Dryers''' are designed for installations where pipeline temperatures are not expected to go below 35°F.
	These dryers cool compressed air by mechanical refrigeration, removing the moisture and assuring that none condenses downstream, unless the air is exposed to lower temperatures.		These dryers cool compressed air by mechanical refrigeration, removing the moisture and assuring that none condenses downstream, unless the air is exposed to lower temperatures.

Helal at 03:47, 25 July 2012

2012-07-25T03:47:45Z

← Older revision		Revision as of 21:47, 24 July 2012
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	==High Inlet Temperature Refrigerated Air Dryers==		==High Inlet Temperature Refrigerated Air Dryers==
	These are used in situations where extra refrigeration is needed to remove any water vapor from the air. These dryers are very similar to the non-cycling dryers, but they are oversized to ensure consistent dew points.		These are used in situations where extra refrigeration is needed to remove any water vapor from the air. These dryers are very similar to the non-cycling dryers, but they are oversized to ensure consistent dew points.
	==~~Youtube~~==		==Video==
	<youtube>hdSpvjkC-Ac</youtube>		<youtube>hdSpvjkC-Ac</youtube>
	<youtube>d0mJXwBFkq0</youtube>		<youtube>d0mJXwBFkq0</youtube>

Helal at 03:46, 25 July 2012

2012-07-25T03:46:59Z

@@ Line 5: / Line 5: @@
 * Please start editing this page after the /noinclude
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-This page is still empty. If you know something about this product, please share your knowledge with others.
+[[File:PIC_Stationary_Dryers_Refrigerated_lrg.jpg|right|thumb|200px|Refrigerated Dryer]]

Admin: Created page with "Category:Drying{{Knoppen}}

← Older revision		Revision as of 08:31, 30 July 2012
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	[[File:Refrigerated_Dryers_2.jpg\|right\|thumb\|200px\|Refrigerated Dryers 2]]		[[File:Refrigerated_Dryers_2.jpg\|right\|thumb\|200px\|Refrigerated Dryers 2]]
	The '''Refrigerated Dryers''' are designed for installations where pipeline temperatures are not expected to go below 35°F.		The '''Refrigerated Dryers''' are designed for installations where pipeline temperatures are not expected to go below 35°F.


	These dryers cool compressed air by mechanical refrigeration, removing the moisture and assuring that none condenses downstream, unless the air is exposed to lower temperatures.		These dryers cool compressed air by mechanical refrigeration, removing the moisture and assuring that none condenses downstream, unless the air is exposed to lower temperatures.


	===Function===		===Function===
	Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air to refrigeration. However, there is also a single heat exchanger that combines both functions. The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.		Refrigeration dryers employ two heat exchangers, one for air-to-air and one for air to refrigeration. However, there is also a single heat exchanger that combines both functions. The compressors used in this type of dryer are usually of the hermetic type and the most common gas used is R-134a. The goal of having two heat exchangers is that the cold outgoing air cools down the hot incoming air and reduces the size of compressor required. At the same time the increase in the temperature of outgoing air prevents re-condensation.
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	Some manufacturers are marketing compressors with built in refrigeration dryers, but these have had a mixed acceptance in the market.		Some manufacturers are marketing compressors with built in refrigeration dryers, but these have had a mixed acceptance in the market.
	Commonly a coalesing prefilter is installed immediately upstream of a refrigerated dryer to remove lubricating oil and other contaminants that have the potential to foul the dryer's heat exchangers.		Commonly a coalesing prefilter is installed immediately upstream of a refrigerated dryer to remove lubricating oil and other contaminants that have the potential to foul the dryer's heat exchangers.


	===Classification===		===Classification===
	There are several types of Refrigerated Dryers exist in the global market. These are:		There are several types of Refrigerated Dryers exist in the global market. These are:


	* Cycling Regrigerated Air Dryers		* Cycling Regrigerated Air Dryers
	* Non-Cycling Refrigerated Air Dryers		* Non-Cycling Refrigerated Air Dryers
	* High Inlet Temperature Refrigerated Air Dryers		* High Inlet Temperature Refrigerated Air Dryers
	==Cycling Regrigerated Air Dryers==		==Cycling Regrigerated Air Dryers==


	It will increase or decrease the refrigeration compressor load depending on the compressed air demands. These dryers will help save money by reducing power consumption while constantly providing consistent dew points.		It will increase or decrease the refrigeration compressor load depending on the compressed air demands. These dryers will help save money by reducing power consumption while constantly providing consistent dew points.


	==Non-Cycling Refrigerated Air Dryers==		==Non-Cycling Refrigerated Air Dryers==
	These are extremely reliable. Non-Cycling dryers can be sized for any application, and will always provide consistent dew points. They also have very low maintenance costs.		These are extremely reliable. Non-Cycling dryers can be sized for any application, and will always provide consistent dew points. They also have very low maintenance costs.


	==High Inlet Temperature Refrigerated Air Dryers==		==High Inlet Temperature Refrigerated Air Dryers==
	These are used in situations where extra refrigeration is needed to remove any water vapor from the air. These dryers are very similar to the non-cycling dryers, but they are oversized to ensure consistent dew points.		These are used in situations where extra refrigeration is needed to remove any water vapor from the air. These dryers are very similar to the non-cycling dryers, but they are oversized to ensure consistent dew points.


	==Video==		==Video==
	<youtube>hdSpvjkC-Ac</youtube>		<youtube>hdSpvjkC-Ac</youtube>
	<youtube>d0mJXwBFkq0</youtube>		<youtube>d0mJXwBFkq0</youtube>