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S S o o laR laR oo oo f f Solar water-heating Solar water-heating System System as part of a roof as part of a roof

SolaRoof Solar water-heating System as part of a roof

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SSoolaRlaRooooff

Solar water-heating Solar water-heating SystemSystem

as part of a roof as part of a roof

The objective:

To utilize the strong sun of Africa in order to

supply hot water for showers and laundries,

using solar energy.

SSoolaRlaRooooff

SolaRoof is a roof that contains a system of

tubes which absorbs the energy of the sun,

and heat up the water passing through them.

The roof is built of 3 layers, where the top and bottom layers are

made of polycarbonate profiles of different colors.

The middle layer is an array of dark plastic tubes, through which the

water pass.

Structure

bottom layer is grey,

and so blocks the light

and reflects it back

towards the tubes.

The top polycarbonate layer is almost completely

transparent,

in order to transmit as much light as possible, while the

Details

Inlet

Outlet

Water inlet. Temperature

of2020cc.

Water inlet.Temperature

of 2020cc.

11

Water divide into 2 pipe sections, and flow

on same direction

Water divide into 2 pipe sections, and flow

on same direction

22

Water outlet. Temperature

of24-28 24-28 cc.

Water outlet.Temperature

of 24-28 24-28cc.

33

End line plug

End line plug

The water-flow inside the roof

Physics

1Sq. M roofGets 130 kcal./Hr

1m3/hr Flowingthrough tubes

Water temperature rise in 0.13c

Practics

Average roof of 30 Sq. M

Estimatedflow rate 1m3/hr

Water temperature rise in 4-5c

In order to avoid a high temperature at first use, the water will go through a 200L. Tank

The tank absorbs the extra heat and moderates the temperature at different flow rates.

Temperature moderation

Heat absorbing tank with connection tubes

SSoolaRlaRooooff

Provides hot water for showers and laundries.

oo

Uses solar energy.oo

Requires low maintenance. oo

Cost effective solution for hot water.oo

Suitable for use at changeable flow rates.oo

WATER FOR ALLHOTHOTHOTHOT