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dream of the “egg beater” as the ideal wind turbine survived,
and many projects materialised.
Civil engineer Jean Fischer from cement machinery giant F. L.
Smidth & Co. (FLS) that created the Gedser wind turbine in 1956,
became well known at an early stage for his dashing concrete
column with its six egg beaters. Also other vertical-axis types were
presented by Jean Fischer.
Until contact was obtained to Karl Erik Jørgensen's and Henrik
Stiesdal's successful 22 kW windmill project, at Vestas the very
earliest experiments 1976-1978 with wind energy were also
aimed at the Darrieus principle. They worked on a kind of 15 KW
“bi-plane Darrieus”, developed by engineer Leon Bjervig. The tower
was elegant, tapered, had the look of a professional windmill, but
except the prototype it was never manufactured. Vestas preferred to
produce the HVK blacksmith's type 3-blade windmill on a license.
Figure 16.17
To the right, 55 kW HVK Vestas in Lem, 1980. To the far
left, an elegant windmill of the egg beater type (Darrieus)
developed by Leon Bjervig in 1978. It never entered
production (left); The exam project Darrieus wind turbine,
developed by engineers Troels Friis Petersen and Flemming
Rasmussen just outside their windows, Risø test station
(right).
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