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A piece of equipment built for
efficient heat transfer from one
medium to another.
 A heat exchanger is a piece of equipment
built for efficient heat transfer from one
medium to another.
 They are widely...
 In parallel-flow heat exchangers,
the two fluids enter the exchanger
at the same end, and travel in
parallel to one anot...
 In counter-flow heat exchangers
the fluids enter the exchanger from
opposite ends. The counter current
design is the mos...
 In a cross-flow heat exchanger,
the fluids travel roughly
perpendicular to one another
through the exchanger.
 Double pipe heat exchanger
 Shell and tube heat exchanger
 Plate heat exchanger
 Plate and shell heat exchanger
 Adi...
 Double pipe heat exchanger
 Shell and tube heat exchanger
 Plate heat exchanger
 Plate and shell heat exchanger
 Adi...
 It is also known as concentric tube heat exchanger
 In this heat exchanger the fluid to be cooled or
heated passes thro...
 Pasteurization
 Digester heating
 Heat recovery
 Pre-heating
 Effluent cooling.
 One set of these tubes contains the fluid that must be
either heated or cooled. The second fluid runs over the
tubes tha...
 Cooling of hydraulic fluid.
 Cooling of engine oils.
 Cool or heat swimming pool water or charged
air.
 It is composed of multiple, thin, slightly separated
plates that have very large surface areas and fluid flow
passages f...
 The plates can be replaced after getting
corroded.
 If the temperature difference to be
accquired is to be increased th...
 Water heaters
 Cooling tower isolation
 Free cooling
 Waste heat recovery
 Heat pump isolation
 Thermal (ice) stora...
 A spiral heat exchanger (SHE), may refer to
a helical (coiled) tube configuration
 Efficient use of space.
 They can b...
 Pasteurization
 Recuperators (Exhaust and Air Handling
Systems)
 Sludge Treatment (Thermal
depolymerisation)
 Cost
 High/low pressure limits
 Thermal performance
 Temperature ranges
 Product mix (liquid/liquid, particulates or...
 Plate heat exchangers must be disassembled and cleaned
periodically. Tubular heat exchangers can be cleaned by
such meth...
Presented By:-
Devidas Barge
Pratik Dalvi
Gopesh Chilveri
Aniket Dupade
Heat exchangers and types
Heat exchangers and types
Heat exchangers and types
Heat exchangers and types
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Heat exchangers and types

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selection and types

Heat exchangers and types

  1. 1. A piece of equipment built for efficient heat transfer from one medium to another.
  2. 2.  A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another.  They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing and sewage treatment.
  3. 3.  In parallel-flow heat exchangers, the two fluids enter the exchanger at the same end, and travel in parallel to one another to the other side.
  4. 4.  In counter-flow heat exchangers the fluids enter the exchanger from opposite ends. The counter current design is the most efficient.
  5. 5.  In a cross-flow heat exchanger, the fluids travel roughly perpendicular to one another through the exchanger.
  6. 6.  Double pipe heat exchanger  Shell and tube heat exchanger  Plate heat exchanger  Plate and shell heat exchanger  Adiabatic wheel heat exchanger  Plate fin heat exchanger  Pillow plate heat exchanger  Fluid heat exchangers  Waste heat recovery units  Dynamic scraped surface heat exchanger  Direct contact heat exchangers  HVAC air coils  Spiral heat exchangers
  7. 7.  Double pipe heat exchanger  Shell and tube heat exchanger  Plate heat exchanger  Plate and shell heat exchanger  Adiabatic wheel heat exchanger  Plate fin heat exchanger  Pillow plate heat exchanger  Fluid heat exchangers  Waste heat recovery units  Dynamic scraped surface heat exchanger  Direct contact heat exchangers  HVAC air coils  Spiral heat exchangers
  8. 8.  It is also known as concentric tube heat exchanger  In this heat exchanger the fluid to be cooled or heated passes through the tube 2(green) and the other fluid is passed through tube 1 (red)to absorb or release the heat.  Advantages: Cheap for both design and maintenance.  Disadvantages: Low efficiency and requires large space.
  9. 9.  Pasteurization  Digester heating  Heat recovery  Pre-heating  Effluent cooling.
  10. 10.  One set of these tubes contains the fluid that must be either heated or cooled. The second fluid runs over the tubes that are being heated or cooled so that it can either provide the heat or absorb the heat required.  They are typically used for high pressure applications.(above 30 bars)
  11. 11.  Cooling of hydraulic fluid.  Cooling of engine oils.  Cool or heat swimming pool water or charged air.
  12. 12.  It is composed of multiple, thin, slightly separated plates that have very large surface areas and fluid flow passages for heat transfer.  The plates are often spaced by rubber sealing gaskets which are cemented into a section around the edge of the plates. The plates are pressed to form troughs at right angles to the direction of flow of the liquid which runs through the channels in the heat exchanger. These troughs are arranged so that they interlink with the other plates which forms the channel with gaps of 1.3– 1.5 mm between the plates.
  13. 13.  The plates can be replaced after getting corroded.  If the temperature difference to be accquired is to be increased then it can be done by adding more plates.
  14. 14.  Water heaters  Cooling tower isolation  Free cooling  Waste heat recovery  Heat pump isolation  Thermal (ice) storage systems
  15. 15.  A spiral heat exchanger (SHE), may refer to a helical (coiled) tube configuration  Efficient use of space.  They can be easily cleaned.  A Spiral Heat Exchangers (or SHE) is a coiled tube arrangement, with two channels coiled one around the another. These two channels operate in a counter-flow arrangement, offering excellent turn down ratios, while optimising flow patterns which in turn, enhance heat transfer.
  16. 16.  Pasteurization  Recuperators (Exhaust and Air Handling Systems)  Sludge Treatment (Thermal depolymerisation)
  17. 17.  Cost  High/low pressure limits  Thermal performance  Temperature ranges  Product mix (liquid/liquid, particulates or high-solids liquid)  Pressure drops across the exchanger  Fluid flow capacity  Cleanability, maintenance and repair  Materials required for construction  Ability and ease of future expansion
  18. 18.  Plate heat exchangers must be disassembled and cleaned periodically. Tubular heat exchangers can be cleaned by such methods as acid cleaning, sand blasting, high- pressure water jet, bullet cleaning, or drill rods.  In large-scale cooling water systems for heat exchangers, water treatment such as purification, addition of chemicals, and testing, is used to minimize fouling of the heat exchange equipment. Other water treatment is also used in steam systems for power plants, etc. to minimize fouling and corrosion of the heat exchange and other equipment.
  19. 19. Presented By:- Devidas Barge Pratik Dalvi Gopesh Chilveri Aniket Dupade
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