(includes counter-current type). A regenerative heat exchanger is one that removes heat from a hot fluid to be stored for release later. These have recently found use in solar thermal energy systems where excess heat absorbed during the day is stored as molten salts for later release and use...
Changing the State of Matter:In order to change the state of matter, we need to either heat or cool it, which means that we're actually adding or removing energy from the matter. Another way to change the state of a substance is to change the pressure acting on its surface. For exam...
As the air passes through, it comes into contact with the dehumidifier's cooled coils. These coils use condensation to pull moisture from the air. The collected moisture remains on the coils and drips into the dehumidifier's reservoir. The dehumidifier reheats the air and exhausts it back into...
Here we look atthe refrigeration cyclethatdrives an air conditionerthrough theevaporation and condensation of refrigeranttoabsorb and then give up heat. We look at theevaporation unit, thecompressor, thecooling coil and fins, theair filter units,water drainandremote controlof a typical household spli...
In an open system, energy and mass can be transferred between the system and its surroundings.Living organisms are open systems.They absorb light energy or chemical energy in the form of organic molecules and release heat and metabolic waste products, such as carbon dioxide, to the surroundings....
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