One hundred and twenty-three years ago - in 1881 - German scientist Emil Warburg (Emil Warburg) was opened so-called magnetocaloric effect (magnetocaloric effect). Its essence is that the magnetic materials can dissipate heat during magnetization and demagnetization at accumulating it. Based on FEM effect was proposed magnetic refrigerator, the first experiments which were conducted in 1933. But then failed to prove the effectiveness of such systems to create industrial installations. Operating temperature range was too small. Towards the creation of magnetic refrigerators back about ten years ago.
General Electric Company is working on a new generation of magnetic refrigerators along with other developers. If anyone is an expert in refrigeration systems, so it is GE, .Moreover, according to the researchers from GE, the company has come close to creating an efficient design of the refrigeration system of the new century. In other words, magnetic refrigerators can become a daily reality in 10 years. Pilot plant collected developer GE - Venkartom Venkatakrishnanom (Venkat Venkatakrishnan) - reduces the temperature of the coolant at 80 degrees Celsius. While the coolant is based on plain water, which promises to cause less harm to nature. However, to make the magnetic properties of the water in it will make paramagnetic metal alloys, so that from the point of view of compliance with environmental certain precautions still have to abide by.
In the pilot plant are based permanent magnet blocks, which for the creation of an alternating magnetic field is given a reciprocating motion. This saves energy spent on cooling. Estimated developers such magnetic refrigerators will be 20-30% more efficient compressor. Related Products :
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