Coastal Solar Chimneys invented by David DaudrichSeafront Solar Chimneys
David Daudrich a German scientist, published a book titled "Der tropische Wirbelsturm und das Wirbelkraftwerk" - "Tropical Cyclones and the Cyclone Power Station" First Minute Pocket books, ISBN 978-3-932805-53-0. Only in German.
Daudrich investigates and describes in some detail the vortex mechanism of tropical storms, and how that mechanism could be copied in constructing a power station to make use of the natural mechanisms at work in those storms. He proposes a similar design as envisioned by Enviro Mission, but there are two important differences.
from http://www.evert.de/eft611e.htm by Alfred Evert
According to Daudrich, water vapor is an essential component of hurricanes and other tropical cyclones: the more the air can be saturated with water vapor the lighter it will be and the easier it will rise and create the necessary draft inside the chimney. He therefore proposes to locate the power plant near a coastline where sea water is abundantly available. Water is also a highly efficient heat collector and storage medium.
The water should be warmed up and then be exposed to the incoming air stream in a 'counter-flow' cascade, i.e. the warm water close to the center of the collector and the cooler water towards the outer perimeter. Warm water will also solve the problem of heat storage for night-time function of the generator. The sun should do the necessary warming if an above-ground black pipeline is used for transport.
The chimney itself need not be excessively tall, according to Daudrich, and should flare out at the top, as a circulation will be established where the air released at the top sinks to the ground after expanding outwards and can then be re-cycled through the generator, mimicking the natural hurricane dynamics.
In addition to producing electricity, the Daudrich design would also produce an abundant supply of clean de-salinated water for local use as well as rain clouds that might bring precipitation in a wider circle around the power station.