制冷,制冷设备,制冷技术

制冷

  • [Refrigeration technology] Magnetic refrigeration 日期:2013-01-08 11:12:14 点击:172 好评:0

    Magnetic refrigeration, or adiabatic demagnetization, is a cooling technology based on the magnetocaloric effect, an intrinsic property of magnetic solids. The refrigerant is often a paramagnetic salt, such as cerium magnesium nitrate. The...

  • [Refrigeration technology] Nash integrated system 日期:2013-01-08 11:08:36 点击:117 好评:0

    In 1954 the Nash Ambassador was the first American automobile to have a front-end, fully integrated heating, ventilating, and air-conditioning system.[7][8] The Nash-Kelvinator corporation used its experience in refrigeration to introduce...

  • [Refrigeration technology] Portable units 日期:2013-01-08 11:06:59 点击:174 好评:0

    A portable air conditioner is one on wheels that can be easily transported inside a home or office. They are currently available with capacities of about 5,00060,000 BTU/h (1,80018,000 W output) and with and without electric-resistance hea...

  • [Refrigeration technology] Evaporative coolers 日期:2013-01-08 11:00:25 点击:107 好评:0

    In very dry climates, evaporative coolers, sometimes referred to as swamp coolers or desert coolers, are popular for improving coolness during hot weather. An evaporative cooler is a device that draws outside air through a wet pad, such as...

  • [Refrigeration technology] Humidity control 日期:2013-01-08 10:56:58 点击:156 好评:0

    Refrigeration air-conditioning equipment usually reduces the absolute humidity of the air processed by the system. The relatively cold (below the dewpoint) evaporator coil condenses water vapor from the processed air (much like an ice-cold...

  • [Refrigeration technology] Refrigeration cycle 日期:2013-01-08 10:53:19 点击:108 好评:0

    In the refrigeration cycle, a heat pump transfers heat from a lower-temperature heat source into a higher-temperature heat sink. Heat would naturally flow in the opposite direction. This is the most common type of air conditioning. A refri...

  • [Refrigeration technology] Electromechanical cooling 日期:2013-01-08 10:52:28 点击:71 好评:0

    In 1902, the first modern electrical air conditioning unit was invented by Willis Haviland Carrier in Buffalo, New York. After graduating from Cornell University, Carrier, a native of Angola, New York, found a job at the Buffalo Forge Comp...

  • [Refrigeration technology] Mechanical cooling 日期:2013-01-08 10:51:15 点击:171 好评:0

    The 2nd-century Chinese inventor Ding Huan (fl 180) of the Han Dynasty invented a rotary fan for air conditioning, with seven wheels 3 m (9.8 ft) in diameter and manually powered.[2] In 747, Emperor Xuanzong (r. 712762) of the Tang Dynasty...

  • [Refrigeration technology] Ice harvesting 日期:2013-01-08 10:39:15 点击:166 好评:0

    The use of ice to refrigerate and thus preserve food goes back to prehistoric times.Through the ages, the seasonal harvesting of snow and ice was a regular practice of most of the ancient cultures: Chinese, Greeks, Romans, Persians. Ice an...

  • [Refrigeration technology] Vapor / Compression System 日期:2013-01-08 10:37:53 点击:177 好评:0

    Advantages Capable of large refrigerating loads at lower initial purchase and operating cost. Very efficient Very compact system for small to very large heat loads Cycle can be reversed for heat pump operation Disadvantages Parts can wear...

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推荐内容
  • Magnetic refrigeration

    Magnetic refrigeration, or adiabatic demagnetization, is a cooling technology ba...

  • Nash integrated system

    In 1954 the Nash Ambassador was the first American automobile to have a front-en...

  • Portable units

    A portable air conditioner is one on wheels that can be easily transported insid...

  • Evaporative coolers

    In very dry climates, evaporative coolers, sometimes referred to as swamp cooler...

  • Refrigeration cycle

    In the refrigeration cycle, a heat pump transfers heat from a lower-temperature ...

  • Electromechanical cooling

    In 1902, the first modern electrical air conditioning unit was invented by Willi...