The core of the refrigeration technology

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The core of the refrigeration technology
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• For years, scientists all over the world in
  thinking hard, how to use the sun to cool the
  room. With the arrival of summer, the heat of the
  sun to the vertex, exposure to the sun roof and
  window, improve the indoor temperature, let us
  feel very uncomfortable. For the first thought
  this not comfortable people, solar refrigeration
  seems to violate common sense. But for hopes to
  use huge solar people, this is a perfect idea.

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• With the summer air conditioning demand
  soared, electric power system under enormous
  pressure to the critical point. The winter house
  heating also use a lot of power, but we still
  have many other options, such as natural gas, oil
  and wood. Traditional refrigeration manner on the
  electricity, cause the summer electricity demand
  boom, 20 higher than the winter peak. The United
  States has more than 80 of families have air
  conditioning and refrigeration takes the total
  power consumption of family is 8. Electric power
  company must start peak period in power plant,
  can ensure that hot summer afternoon electricity
  demand. The peak period of electric power, the
  power plant to provide often use the low
  efficiency of traditional fossil fuel.

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• LG's solar panels can only provide 70 mw power,
  that is to say, can save little power.
• Renault and said they adopt a system of 190 watts
  solar panels, can will heating and refrigeration
  cost savings in half. The system USES the most
  efficient mode, can increase the number of solar
  panels, consumer also can get power consumption
  situation of real-time data. The researchers say,
  low energy consumption in the research and
  development of cooling system on the road, they
  can also make greater progress.

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2.?????
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• Hot air conditioning system driven by India, at
  Selma manufacturing company, they will this
  system called it a sustainable solutions, deal
  with the current environmental problems. In the
  early 1920 s, the technology-inhaled
  refrigeration-has been put into commercial use.
  And the standard of air conditioning, inhaled
  chiller use boiling point lower refrigerants.
  Will eliminate the refrigerant evaporation air
  heat. Standard air conditioning compressor using
  electricity, gas refrigerants into liquid.
  Inhaled chiller using the hot compression to
  restart the cycle, they only need the functioning
  of the heat, and no moving parts.

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• The type of refrigerator expensive, performance
  coefficient is low, at the same time by
  inhalation caloric restriction, can't output high
  capacity. But if installed in produce additional
  heat environment, is a kind of high efficient
  solution, such as Selma company in Basel,
  Copenhagen, Munich and Rome the hot air
  conditioning system installed driver. In
  addition, the system does not use hydrogen CFC
  refrigerant, but use of water, lithium bromide or
  ammonia. Hydrogen CFC is a potent greenhouse gas

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3.?????????
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• ?????NREL??????????????,?????????????,??DEVap?
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  ??80?90,????????????DEVap????????????,??????????
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• Families ZuBaEr and NREL colleagues are
  developing a new generation of air conditioning
  technology, called "desiccant increase
  evaporation air conditioning", hereinafter
  referred to as "DEVap". ZuBaEr division, said the
  region in the damp climate, the power consumption
  of the air conditioning than conventional air
  conditioning low 40 above, in the southwest
  desert and desert regions is 80 to 90, the
  local air has been very dry. DEVap air
  conditioning can dramatically reduce electricity
  demand, the system only the place is a fan
  electricity, used to drive air

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• DEVap????????????????????????????????????????
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• DEVap air conditioning refrigeration the secret
  lies in a liquid drying machine-a very strong
  salt solution-to be able to power consumption in
  very rare cases dispel the humidity in the air.
  In contrast, electricity is often reduced wet
  power consumption greatly. The air is dry after
  they have through the evaporative cooling
  refrigeration. Its principle of work is very
  simple, and pool similar. When in a pool of water
  from liquid into gas, the temperature of the
  surrounding air will dramatically reduce gas

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• This way let air conditioning realize the real
  revolution. Due to the low power consumption, the
  thermal drive not mechanical drive, using solar
  running the system than conventional air
  conditioning will much more reliable. Families
  ZuBaEr said "desiccant is prepared for solar
  refrigeration, at the same time also can be a
  kind of high efficient way to control the air
  conditioning can save humidity. The electricity,
  insulation and not have to worry about high
  produce fungi and morbid building problems. If
  you want to increase energy efficiency of
  buildings, we must adopt different air
  conditioning technology." After successfully
  completed DEVap system small prototype, after
  testing NREL scientists are making a bigger
  prototype, verify the technology business
  prospects.

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4.??????
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5.????????
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• The national environmental protection agency,
  points out that the power consumption DeReBeng
  than traditional heating or cooling system low
  25 to 50, can reduce energy consumption and
  reduce carbon emissions. In addition, DeReBeng in
  damp area also has high efficiency, can will
  indoor humidity control at about 50. This system
  for specific conditions return period in
  different ways. Geothermal heat exchange group
  chief executive and President doug-just in their
  dougherty is located in Illinois springfield home
  18000 for installation of geothermal system. He
  says although cost is the conventional air
  conditioning system of two times, but four to
  five years will take back the cost, the annual
  electricity will reduce two-thirds.

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• Semiconductor refrigeration also called
  electronic refrigeration, or temperature
  difference electric refrigerating, from 50 s
  developed a door between refrigeration technology
  and semiconductor technology edge the discipline,
  it use of special semiconductor material
  composition of the P-N knot, formation of
  thermocouple, produce pearl post effect, that is,
  through direct current refrigeration of a new
  type of refrigeration method, and compression
  type refrigeration and absorption refrigeration
  and called the world's three largest
  refrigeration way.

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• ?for each after root bismuth silk, then two root
  bismuth silk from dc power supply respectively
  are aligned, after electrify, he is amazed to
  find a joint becomes hot, another joint getting
  cold This phenomenon later, was called the
  "pearl post effect". "Pearl post effect" physics
  principles for charge carrier in the conductor
  movement in current form, because the charge
  carrier in different materials in a different
  level, when it from a higher level to low level
  sports, will release the redundant quantity of
  heat. Conversely, it needs to absorb heat from
  the outside world (that is, the performance for
  the refrigeration)

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• So, "semiconductor refrigeration" the effect is
  mainly depends on the charge of two kinds of
  material carrier movement to class difference,
  namely thermoelectric potential difference. Pure
  metal conductive good thermal conductivity, but
  refrigeration efficiency is extremely low (less
  than 1). Semiconductor material has a very high
  in thermoelectric power, can successfully used to
  do small thermoelectric refrigeration device. But
  at that time the use of metal materials because
  of thermoelectric performance is poorer, energy
  conversion efficiency is very low, thermoelectric
  effect didn't get essence applications.

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• Through the above analysis, the semiconductor
  temperature difference of electricity a
  application scope is cooling, heating, power
  generation, cooling and heating are widely used,
  in the following aspects
• 1 and the military aspects missile, radar,
  submarine, and other aspects of the infrared ray,
  guide line system.
• 2, medical treatment Cold force, cold and remove
  piece, cataracts, blood analyzer, etc.
• 3, laboratory device cold, cold, cold box trap
  trough, electronic and low temperature testing
  device, various constant temperature, high low
  temperature of experimental apparatus.
• 4, special device oil product low temperature
  tester, biochemical products low temperature
  tester, bacteria culture box, constant
  temperature developing slot, computers and so on.
• 5, daily life respect air conditioning, hot and
  cold two box, drinking water machine, E-mail
  address, computer and other appliances, etc.

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• Frequency conversion air conditioning is on the
  basis of common air conditioning to choose the
  frequency conversion special compressor,
  increased frequency conversion control system.
  Its basic structure and refrigeration principle
  and common air conditioning completely the same.
  Frequency conversion air conditioning host is
  automatic speed stepless, it may, according to
  the situation room to provide the required amount
  of cold (hot) When indoor temperature is reached
  after expectations, an air conditioning is
  accurate to host a constant temperature to keep
  it running speed, to achieve "don't stop
  running", so as to ensure the stability of the
  environmental temperature

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