The Basics of Heat Exchangers - 0 views

• 
  #1 Robbie Sutton on 02 Mar 12

   

  Heat exchangers are some sort of staple in today's gadgets. They are not only contained in the simplest of devices; exchangers have also found their use in big industries and machineries in the world today. They are basically devices within some machines that enable it to transfer heat from one medium to another. They facilitate the successful transfer of heat from one object to another.
  
  Entry to Heat Exchangers
  
  One example of this can be the radiators found in cars or ac units. What usually happens is that the heat source transfers water which will cool the engine through the exchanger. The exchanger will transfer heat in the water to air departing the engine cooler.
  
  Heat exchangers are key for the purposes of space heating ac and even refrigeration. Heavy industries that also employ this technology include power factories, chemical and petrochemical facilities, oil and petroleum refineries, natural gas processors and sewage treatment facilities.
  
  Types of Warm Exchange Flow
  
  Heat exchangers may be classified into two forms, mainly according to their flow arrangements. These are definitely the parallel-flow and the counter-flow exchangers.
  
  The parallel-flow exchange involves the two mediums going in the exchanger through the same side of the extender. For example, two fluids will enter the exchanger at the same side and holiday parallel each other for the whole process.
  
  The counter-flow change, on the other side, is the opposite with the first process. Here, fluids will enter the device from different ends and meet each other for the process with heat exchange. Many exchangers use this flow since it has been proven to be the better of the two processes since it can transfer more heat in the heating medium to the other. In this set-up, the mediums travel to one another and are then processed by the exchanger.
  
  Traditionally, exchangers are designed in a manner that the surface area between the two exchanging fluids is maximised whilst minimising the resistance to your exchange flow as well. Additional fins installed in either direction where the fluids enter can also enhance exchangers. These fins can add to the surface area of your exchangers whilst also helping control the flow of fluids through the exchange process.
  
  Temperature through the Heat Exchange Process
  
  Depending on the size of the exchanger, temperature vary during the exchange process. The temperature will also vary according to the position of the device. But many industries that use exchangers typically have their own defined mean temperature.
  
  This temperature is usually defined in terms of the Log Mean Temperature Difference or the LMTD. Sometimes however the temperature is still hard to ascertain through the LMTD approach, in this case, that NTU method is after that used.
  
  Types of Warm Exchangers
  
  There are a variety of heat exchangers used right now. These include shell tube exchangers, plate exchangers, adiabatic wheel, plate fin, fluid exchangers, vibrant scraped surface, phase-change exchangers, HVAC air coils, spiral exchangers along with the direct contact exchangers.
  
  REFERENCE:
  
  http://yourarticlesource.com/Art/457554/288/What-Exactly-Are-Tube-Heat-Exchangers-And-Their-Several-Uses.html
  
  http://articlepile.com/Art/758930/36/Types-Of-Heat-Exchangers.html
  
  http://www.articlecompilation.com/Article/Sorts-Of-Heat-Exchangers/1965119

   

  <div class="cArrow"> </div><div class="cContentInner">Heat exchangers are some sort of staple in today's gadgets. They are not only contained in the simplest of devices; exchangers have also found their use in big industries and machineries in the world today. They are basically devices within some machines that enable it to transfer heat from one medium to another. They facilitate the successful transfer of heat from one object to another.<br /><br />Entry to Heat Exchangers<br /><br />One example of this can be the radiators found in cars or ac units. What usually happens is that the heat source transfers water which will cool the engine through the exchanger. The exchanger will transfer heat in the water to air departing the engine cooler.<br /><br />Heat exchangers are key for the purposes of space heating ac and even refrigeration. Heavy industries that also employ this technology include power factories, chemical and petrochemical facilities, oil and petroleum refineries, natural gas processors and sewage treatment facilities.<br /><br />Types of Warm Exchange Flow<br /><br />Heat exchangers may be classified into two forms, mainly according to their flow arrangements. These are definitely the parallel-flow and the counter-flow exchangers.<br /><br />The parallel-flow exchange involves the two mediums going in the exchanger through the same side of the extender. For example, two fluids will enter the exchanger at the same side and holiday parallel each other for the whole process.<br /><br />The counter-flow change, on the other side, is the opposite with the first process. Here, fluids will enter the device from different ends and meet each other for the process with heat exchange. Many exchangers use this flow since it has been proven to be the better of the two processes since it can transfer more heat in the heating medium to the other. In this set-up, the mediums travel to one another and are then processed by the exchanger.<br /><br />Traditionally, exchangers are designed in a manner that the surface area between the two exchanging fluids is maximised whilst minimising the resistance to your exchange flow as well. Additional fins installed in either direction where the fluids enter can also enhance exchangers. These fins can add to the surface area of your exchangers whilst also helping control the flow of fluids through the exchange process.<br /><br />Temperature through the Heat Exchange Process<br /><br />Depending on the size of the exchanger, temperature vary during the exchange process. The temperature will also vary according to the position of the device. But many industries that use exchangers typically have their own defined mean temperature.<br /><br />This temperature is usually defined in terms of the Log Mean Temperature Difference or the LMTD. Sometimes however the temperature is still hard to ascertain through the LMTD approach, in this case, that NTU method is after that used.<br /><br />Types of Warm Exchangers<br /><br />There are a variety of heat exchangers used right now. These include shell tube exchangers, plate exchangers, adiabatic wheel, plate fin, fluid exchangers, vibrant scraped surface, phase-change exchangers, HVAC air coils, spiral exchangers along with the direct contact exchangers.<br /><br />REFERENCE:<br /><br /><a href="http://yourarticlesource.com/Art/457554/288/What-Exactly-Are-Tube-Heat-Exchangers-And-Their-Several-Uses.html" rel="nofollow">http://yourarticlesource.com/Art/457554/288/What-Exactly-Are-Tube-Heat-Exchangers-And-Their-Several-Uses.html</a><br /><br /><a href="http://articlepile.com/Art/758930/36/Types-Of-Heat-Exchangers.html" rel="nofollow">http://articlepile.com/Art/758930/36/Types-Of-Heat-Exchangers.html</a><br /><br /><a href="http://www.articlecompilation.com/Article/Sorts-Of-Heat-Exchangers/1965119" rel="nofollow">http://www.articlecompilation.com/Article/Sorts-Of-Heat-Exchangers/1965119</a></div>

  ...

  Cancel

To Top