EWB Group Project and Presentation Term Paper

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However there ecological concerns associated with this water supply.

The other source is not potable (too much salt) and would need to be distilled. Furthermore it may need to be pumped to the surface.

You may need to find out what the water pressures and temperatures of both sources of water are for these artesian basins. This information should be available from government sourses. Google the names of the basins to find out.

The warm water under pressure could possibly be used for pumping the saline non-potable water to the solar still or through the solar still. In addition since this warm water is a source of energy it could also be used for preheating the water used in the solar still.

DESIGN AREAS TO BE CONSIDERED

The type of Solar Still, i.e. direct or indirect heating of water by solar energy.

The physics involved for circulating water and air.

Double or single glazing.

Trough type concentrators?

Special sunlight absorbing coatings.

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(may be too expensive to use)

Modular design, the dimensions, (determined by the size of available materials).

Materials for: the transparent cover, evaporator structures and surfaces, condenser structures and surfaces, supporting structures and plumbing.

Environmental deterioration of materials, i.e. By UV rays, heat, water, wind blown dust, corrosive salts.

Cleaning and maintenance considerations.

Distance of water supply from the Solar still.

Disposal or use of the concentrated saline water:

Used for flushing toilets? (May contaminate the septic system)

Can be used for growing food in special greenhouses that use salt water.

Excess salt could be sold?

Recovery of waste heat from the condenser, could this be used for preheating hot water for domestic use?

Natural solar energy absorbing materials. Charcoal, black pebbles or rocks, waste mining slag etc.

Materials for wicks, natural plant fibres, wool, wood shavings etc. Prevention of salt build up.

6.4 Design Area 4 - Water Supply and Sanitation System

6.4.1 Context

Water.....

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"EWB Group Project And Presentation", 22 September 2010, Accessed.1 July. 2025,
https://www.aceyourpaper.com/essays/ewb-group-project-presentation-8356
   

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