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Human Powerempirically explored
Hum
an Power Em
pirically Explored
Arjen Jansen
Arjen Jansen
Harvesti ng energy from the users’ muscular power to
convert this into electricity is a relati vely unknown way to
power consumer products. It nevertheless off ers surprising
opportuniti es for product designers; human-powered products
functi on independently from regular power infrastructure,
are convenient and can be environmentally and economically
benefi cial.
This work provides insight into the knowledge required to
design human-powered energy systems in consumer products
from a scienti fi c perspecti ve. It shows the developments of
human-powered products from the fi rst introducti on of the
BayGen Freeplay radio in 1995 ti ll current products and provides
an overview and analysis of 211 human-powered products
currently on the market. Although human power is generally
perceived as benefi cial for the environment, this thesis shows
that achieving environmental benefi t is only feasible when the
environmental impact of additi onal materials in the energy
conversion system is well balanced with the energy demands of
the products functi onality.
User testi ng with existi ng products showed a preference for
speeds in the range of 70 to 190 rpm for crank lengths from
32 to 95 mm. The muscular input power varied from 5 to 21
W. The analysis of twenty graduati on projects from the Faculty
of Industrial Design Engineering in the fi eld of human-powered
products, off ers an interesti ng set of additi onal practi ce based
design recommendati ons.
The knowledge based approach of human power is very
powerful to support the design of human-powered products.
There is substanti al potenti al for improvements in the domains
energy conversion, ergonomics and environment. This makes
that human power, when applied properly, is environmentally
and economically competi ti ve over a wider range of applicati ons
than thought previously.
Product Engineering publicati on no. 3
ISBN 9789051550
9789051550
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Grundig
Philips
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£w
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BA
F-07
027
Human Powerempirically explored
Hum
an Power Em
pirically Explored
Arjen Jansen
Arjen Jansen
Harvesti ng energy from the users’ muscular power to
convert this into electricity is a relati vely unknown way to
power consumer products. It nevertheless off ers surprising
opportuniti es for product designers; human-powered products
functi on independently from regular power infrastructure,
are convenient and can be environmentally and economically
benefi cial.
This work provides insight into the knowledge required to
design human-powered energy systems in consumer products
from a scienti fi c perspecti ve. It shows the developments of
human-powered products from the fi rst introducti on of the
BayGen Freeplay radio in 1995 ti ll current products and provides
an overview and analysis of 211 human-powered products
currently on the market. Although human power is generally
perceived as benefi cial for the environment, this thesis shows
that achieving environmental benefi t is only feasible when the
environmental impact of additi onal materials in the energy
conversion system is well balanced with the energy demands of
the products functi onality.
User testi ng with existi ng products showed a preference for
speeds in the range of 70 to 190 rpm for crank lengths from
32 to 95 mm. The muscular input power varied from 5 to 21
W. The analysis of twenty graduati on projects from the Faculty
of Industrial Design Engineering in the fi eld of human-powered
products, off ers an interesti ng set of additi onal practi ce based
design recommendati ons.
The knowledge based approach of human power is very
powerful to support the design of human-powered products.
There is substanti al potenti al for improvements in the domains
energy conversion, ergonomics and environment. This makes
that human power, when applied properly, is environmentally
and economically competi ti ve over a wider range of applicati ons
than thought previously.
Product Engineering publicati on no. 3
ISBN 9789051550
9789051550