Heat Pipe-Thermal Energy Exchanger Manufactured by Maniks - PowerPoint PPT Presentation

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Heat Pipe-Thermal Energy Exchanger Manufactured by Maniks

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Heat pipe is a very efficient way to transfer thermal energy from one end to another. It works on the principles of thermal conductivity and phase transfer. The High thermal conductivity enables a heat pipe to transfer and dissipate heat to the desired location through a “capillary action”. This effect is similar to placing a paper tissue in a fluid and observes the fluid rise up the paper towel. Heat pipes were invented by Los Alamos National Laboratory in 1963 by George Grover to supply heat to and remove waste heat from energy conversion system. – PowerPoint PPT presentation

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Title: Heat Pipe-Thermal Energy Exchanger Manufactured by Maniks


1
Heat Pipe-Thermal Energy Exchanger
  • -Maniks

2
Introduction
  • Maniks Hear Pipe
  • What is Heat Pipe?
  • Actual working of a Heat Pipe
  • Types of Heat Pipes
  • Applications of Heat Pipes
  • Benefits of a Heat Pipe
  • Frequently Asked Questions

3
Maniks Heat Pipe
  • Maniks Heat Pipe

4
Maniks Heat Pipe
  • What is Heat Pipe?
  • Heat pipe is a very efficient way to transfer
    thermal energy from one end to another. It works
    on the principles of thermal conductivity and
    phase transfer. The High thermal conductivity
    enables a heat pipe to transfer and dissipate
    heat to the desired location through a capillary
    action. This effect is similar to placing a
    paper tissue in a fluid and observes the fluid
    rise up the paper towel.
  • Heat pipes were invented by Los Alamos National
    Laboratory in 1963 by George Grover to supply
    heat to and remove waste heat from energy
    conversion system.

5
Maniks Heat Pipe
  • Actual working of a Heat Pipe
  • A heat pipe is a copper tube with an internal
    wick structure that is sealed on both the ends
    with a small amount of water or ammonia liquid
    inside (Ammonia liquid is specifically used by
    Maniks). The wick is used to transport the liquid
    from one end to other. As heat is applied to the
    hotter side of a pipe, the water will boil and
    turn to a gas which then travels with the thermal
    energy to the colder end of the heat pipe where
    it condenses back to a liquid. This process is
    known as capillary action. This cycle is repeated
    continuously to remove heat from a system.

6
Maniks Heat Pipe
  • Types of Heat Pipes
  • Vapour chamber or flat heat pipes
  • Variable conductance heat pipe
  • Diode heat pipes
  • Thermosyphones
  • Loop heat pipes

7
Maniks Heat Pipe
  • Applications of Heat Pipes
  • Today, Heat pipes are used in a variety of
    applications from space to handheld devices that
    fit in your packet. Some applications are listed
    below
  • Spacecraft
  • Computer systems
  • Solar thermal
  • Permafrost cooling
  • Cooking appliances
  • Ventilations and heat recovery nuclear power
    conversation
  • http//www.maniks.com/heat-pipe-heat-exchangers.ht
    ml

8
Maniks Heat Pipe
  • Benefits of a Heat Pipe
  • High conductivity effective thermal
  • Transfers heat over long distance with minimal
    temperature drop.
  • Passive operation
  • No energy input is required to operate the heat
    pipe. There are no moving parts.
  • Long life with minimum maintenance
  • There is nothing in heat pipes that wear out heat
    pipes are passive. Since there are no moving
    parts the only maintenance recommended is
    periodic cleaning
  • Cost efficient
  • By lowering the operating temperature, these
    devices can increase the Mean Time between
    Failures for electronic assemblies. In turn this
    lowers the maintenance and replacement costs.
  • Flexible size

9
Maniks Heat Pipe
  • Frequently Asked Questions
  • Are heat pipes reliable?
  • -Yes, mainly because they have no moving
    parts. They are ideal for applications such as
    aerospace where maintenance is not feasible. The
    main cause of heat pipe failures is gas
    generation in the heat pipe, but this can be
    completely avoided by proper cleaning and
    assembly procedures
  • Can heat pipes work against gravity?
  • -Yes, this occurs whenever the evaporator is
    located above the condenser. In these
    applications the working fluid must be pumped
    against gravity back to the evaporator. This
    occurs through wick structures that pump working
    fluid through capillary pressure developed in the
    porous wick. The finer the pore radius of a wick
    structure, the higher against gravity the heat
    pipe can operate.

10
Maniks Heat Pipe

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