I.) Did you know Peltier device?
II.) How does Peltier device look like?
III.) How does Peltier device work?
IV.) What is the use of Peltier device?
PELTIER EFFECT - is a temperature difference created by applying a direct current voltage between two electrodes ,thermal energy is moved through it as well.When current flows through the junction of the two conductors heat is removed at one junction and cooling occurs.
applying heat to the substrate plate , small amount of power will be
generated depends on peltier module features.
Also know as thermoelectric device which apply in cooling
purposes like mini-cooler in the hotel which keep the beverage chilled.
II.) Image of Peltier or Thermoelectric Module
III.)Peltier device work thru the process of peltier effect this was
been discovered by French physicist Charles Athanase Peltier, the
cooling of one junction and the heating of the other when electric
current is maintain in a circuit of material consisting two
dissimilar conductor.
However, opposite of the peltier effect is seebeck effect.Seebeck
effect was discover by Thomas Johann Seebeck,when heat is
applied to one of the two substrate electron flow toward the cooler
one,then direct current flows through that circuit.
II.) How does Peltier device look like?
III.) How does Peltier device work?
IV.) What is the use of Peltier device?
Before i start to describe Peltier device let us first remember our college topic about P-N junction.
P-Protons ( + )
N-Neutrons ( - )
..this two junction has a vital role in peltier effect.
PELTIER EFFECT - is a temperature difference created by applying a direct current voltage between two electrodes ,thermal energy is moved through it as well.When current flows through the junction of the two conductors heat is removed at one junction and cooling occurs.
Main application of the peltier effect is cooling.However,it can also be used for heating or control temperature.I.) Peltier device can use as alternative source of energy by
applying heat to the substrate plate , small amount of power will be
generated depends on peltier module features.
Also know as thermoelectric device which apply in cooling
purposes like mini-cooler in the hotel which keep the beverage chilled.
II.) Image of Peltier or Thermoelectric Module
 |
| 6vdc/ 12vdc / 24 volts dc |
III.)Peltier device work thru the process of peltier effect this was
been discovered by French physicist Charles Athanase Peltier, the
cooling of one junction and the heating of the other when electric
current is maintain in a circuit of material consisting two
dissimilar conductor.
However, opposite of the peltier effect is seebeck effect.Seebeck
effect was discover by Thomas Johann Seebeck,when heat is
applied to one of the two substrate electron flow toward the cooler
one,then direct current flows through that circuit.
IV.) Peltier or thermoelectric module primarily used in cooling purposes depends on its application.
Applications for thermoelectric modules cover a wide spectrum of product areas. These include equipment used by military, medical, industrial, consumer, scientific/laboratory, and telecommunications organizations. Uses range from simple food and beverage coolers for an afternoon picnic to extremely sophisticated temperature control systems in missiles and space vehicles.
- Avionics
- Black box cooling
- Calorimeters
- CCD (Charged Couple Devices)
- CID (Charge Induced Devices)
- Cold chambers
- Cold plates
- Compact heat exchangers
- Constant temperature baths
- Dehumidifiers
- Dew point hygrometers
- Electronics package cooling
- Electrophoresis cell coolers
- Environmental analyzers
- Heat density measurement
- Ice point references
- Immersion coolers
- Integrated circuit cooling
- Inertial guidance systems
- Infrared calibration sources and black body references
- Infrared detectors
- Infrared seeking missiles
- Laser collimators
- Laser diode coolers
- Long lasting cooling devices
- Low noise amplifiers
- Microprocessor cooling
- Microtome stage coolers
- NEMA enclosures
- Night vision equipment
- Osmometers
- Parametric amplifiers
- Photomultiplier tube housing
- Power generators (small)
- Precision device cooling (lasers and microprocessors)
- Refrigerators and on-board refrigeration systems (aircraft, automobile, boat, hotel, insulin, portable/picnic, pharmaceutical, RV)
- Restaurant portion dispenser
- Self-scanned arrays systems
- Semiconductor wafer probes
- Stir coolers
- Thermal viewers and weapons sights
- Thermal cycling devices (DNA and blood analyzers)
- Thermostat calibrating baths
- Tissue preparation and storage
- Vidicon tube coolers
- Wafer thermal characterization
- Water and beverage coolers
- Wet process temperature controller
- Wine cabinets
Unlike a simple heat sink, a thermoelectric cooler permits lowering the temperature of an object below ambient as well as stabilizing the temperature of objects which are subject to widely varying ambient conditions. A thermoelectric cooler is an active cooling module whereas a heat sink provides only passive cooling.
Thermoelectric coolers generally may be considered for applications that require heat removal ranging from milliwatts up to several thousand watts. Most single-stage TE coolers, including both high and low current modules, are capable of pumping a maximum of 3 to 6 watts per square centimeter (20 to 40 watts per square inch) of module surface area. Multiple modules mounted thermally in parallel may be used to increase total heat pump performance. Large thermoelectric systems in the kilowatt range have been built in the past for specialized applications such as cooling within submarines and railroad cars. Systems of this magnitude are now proving quite valuable in applications such as semiconductor manufacturing lines.
3.2 Typical applications for thermoelectric modules include:
Discover the effect of this device either cooling or alternative energy.
ReplyDeleteThanks a lot Suganya..
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