IEEE Power & Energy Magazine - July/August 2020 - 77

power in Lowell, Massachusetts, hired James B.
Francis to improve the efficiency of the turbines then
in use. By 1851, Francis had
conducted nearly 100 experiments related to water
flow and turbine efficiency.
These experiments brought
the practice of American
turbine engineering from
a cut-and-try art to an applied science. As a result,
Lowell became established
as one of the world's major
manufacturing centers. All
this occurred with the use
of mechanical power alone.
The Francis turbine is still
in use in hydroelectric plants
around the world.
The major drawback of
the Evershed plan was the
cost of excavating the sub-

figure 1. The Niagara Mill Bank at High Bank in 1893.
(Source: E.D. Adams, Niagara Power, vol. 1. Niagara Falls,
NY: Niagara Falls Power Co., 1927, p. 72.)

surface rock. In an attempt to
reduce costs, the number of
wheel pit sites was reduced
s ev e r a l t i m e s . F i g u r e 4
shows one of these versions.
The entrance to the canal is
shown at point H, near Connor's Island. Figure 5 is a
vertical section showing the
wheel pits and the tail race
tunnel that was to remove
the spent water. In all of its
incarnations, the Evershed
plan was that of a decentralized
power generation scheme,
typical of the times.
Because of the high cost
of excavation, Cataract officials were reluctant to go
ahead with the Evershed
plan in any of its forms. They
also felt that local tenants of
the power company would
not be numerous enough

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6874

800-722-8078 * pr-tech.com

july/august 2020

ieee power & energy magazine

77


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IEEE Power & Energy Magazine - July/August 2020

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - July/August 2020

Contents
IEEE Power & Energy Magazine - July/August 2020 - Cover1
IEEE Power & Energy Magazine - July/August 2020 - Cover2
IEEE Power & Energy Magazine - July/August 2020 - Contents
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IEEE Power & Energy Magazine - July/August 2020 - Cover3
IEEE Power & Energy Magazine - July/August 2020 - Cover4
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