How do you make a fog collector?
How do you make a fog collector?
Steps
- Prepare the ground. It must be a flat and firm ground.
- Build a pond or buy a tank to catch the water.
- Fix the stems firmly to the ground (dig in ΒΌ of it at least).
- Fix the raffia/mesh to the stems.
- Place the PVC pipes under the panel so that caught water will drop into it and will be lead into your tank/pond.
How do fog catchers work?
Fog harvesters are mesh nets, usually one meter squared, erected perpendicular to the path of the wind. As the wind blows fog through the device, the mesh catches the droplets, and gravity pulls the water down into containers underneath.
What is the concept of fog harvesting?
Fog harvesting provides an alternative source of freshwater through a technique used to capture water from wind-driven fog. As the wind passes through the mesh, drops of freshwater form and drip into an underlying gutter, from which pipes lead the water into a storage tank.
Where do fog catchers work?
Research suggests that fog collectors work best in locations with frequent fog periods, such as coastal areas where water can be harvested as fog moves inland driven by the wind.
What are hydrophilic fog nets made of?
The meshes are made of polyethylene or polypropylene. They have been chosen to be very efficient at capturing the wind blown fog droplets. The material is produced by a few manufacturers.
How do fog catchers collect water?
Below the mesh netting of a fog fence, there is a small trough for the water to be collected in. The water runs from the trough to some type of storage container or irrigation system for use. If the fog collector is circular the water will be deposited into a basin placed at the bottom of the netting.
What properties do you think a material should have to collect water from fog?
The material must be efficient at droplet capture, be very cheap, be durable, be produced in large sizes (4 m or 8 m widths), produce clean water, and drain the collected water quickly.
What are the factors affecting fog harvesting?
The following factors affect the volume of water that can be extracted from fogs and the frequency with which the water can be harvested: Frequency of fog occurrence, which is a function of atmospheric pressure and circulation, oceanic water temperature, and the presence of thermal inversions.
What is raschel mesh?
The Raschel mesh (35% shading, left panel, www.marienberg.cl) has been successfully applied for many years in 35 countries in five continents. It is used double layered in SFC and LFC (only one layer is shown here).
How do the fog droplets get collected in the receptacle below?
Answer: Fog collection refers to the collection of water from fog using large pieces of vertical mesh net to make the fog-droplets flow down towards a trough below, known as a fog fence, fog collector or fog net.
What are fog nets made of?
Fog collectors look like tall volleyball nets slung between two poles, but they are made of a polypropylene or polyethylene mesh that is especially efficient at capturing water droplets.
What are the advantages of fog harvesting?
Passive collection system requiring no energy input to operate. Cheap and easy to maintain and repair. Water quality is generally good in non-industrial areas, though pH can often be low.
