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Human Power Empirically Explored

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Human Power empirically explored Arjen Jansen
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Page 1: Human Power Empirically Explored

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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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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