Types
There are three principal approaches to the design of the heat sinks that collect the moisture in air wells: high mass, radiative and active. Early in the twentieth century, there was interest in high-mass air wells, but despite much experimentation including the construction of massive structures, this approach proved to be a failure.
From the late twentieth century onwards, there has been much investigation of low-mass, radiative collectors; these have proved to be much more successful.
Read more about this topic: Air Well (condenser)
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