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A regenerative heat exchanger, or more commonly a regenerator, is a type of heat exchanger where heat from the hot fluid is intermittently stored in a thermal storage medium before it is transferred to the cold fluid. To accomplish this the hot fluid is brought into contact with the heat storage medium, then the fluid is displaced with the cold ...
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Development of agricultural output of Russia in 2015 US$ since 1961. Agriculture in Russia is an important part of the economy of the Russian Federation.The agricultural sector survived a severe transition decline in the early 1990s as it struggled to transform from a command economy to a market-oriented system. [1]