The challenge of water evaporation in fire ponds

Water evaporation poses a significant challenge in water management , particularly for large open water bodies such as fire ponds . Given increasing freshwater scarcity , minimizing water losses through evaporation is becoming ever more critical . This article examines the problem of water evaporation and introduces Euro-Matic's Bird Balls™ as an innovative and effective solution.

What is water evaporation?

Water evaporation is the process by which water passes from the surface into the atmosphere. This process is influenced by several factors:

• Temperature: Higher temperatures increase the evaporation rate because more energy is available to convert the water into a gaseous state.
• Wind speed: Strong winds promote evaporation by transporting the saturated air above the water surface more quickly and making room for dry air.
• surface area: Larger bodies of water have a higher evaporation rate because more water is exposed to the atmosphere.
• Humidity: Low humidity promotes evaporation because the air can absorb more water vapor.

You can find more information about the factors influencing water evaporation in our detailed article.

Quantitative effects of evaporation

The evaporation rate can vary considerably and depends heavily on climatic conditions. For example, a fire pond with an area of ​​one hectare (10.000 square meters) can lose several millimeters of water daily, depending on climatic conditions. This means:

• Daily loss: With an evaporation rate of 5 mm per day, a fire pond with an area of ​​one hectare loses 50 cubic meters of water daily.
• Monthly loss: Over a month, this loss amounts to about 1.500 cubic meters of water.
• Annual loss: Over the course of a year, this could result in a loss of about 18.250 cubic metres of water.

These water losses lead to increased costs for refilling and treating the water , which in turn has economic and environmental consequences.

The solution: Bird Balls™ from Euro-Matic

Euro-Matic's Bird Balls™ offer an effective solution for reducing water evaporation in fire ponds. These floating cover spheres are made of UV-stabilized HDPE (high-density polyethylene) and are available in both air- and water-filled versions. They cover over 91% of the water surface and can reduce evaporation loss by 85-90%.

How the Bird Balls™ work

Bird Balls™ reduce water evaporation by shading and cooling the water's surface. The spheres form an almost continuous layer on the water's surface, blocking sunlight and thus lowering the water temperature. This reduces the energy required for evaporation.

• Shading: By reducing direct sunlight, the water temperature is lowered, which reduces the evaporation rate.
• Cooling: The balls contribute to thermal stability and prevent the water surface from heating up too much.
• Weather resistance: Air-filled balls are stable at wind speeds of up to 80 km/h, while water-filled balls can withstand wind speeds of up to 150 km/h.

Economical advantages

Using Bird Balls™ results in significant cost savings . At sites that use energy for water treatment , costs can be reduced by up to 75%. These savings result from:

• Reduced evaporation: Less water needs to be refilled, which Water costs lowers.
• Reduced algae formation: The shading will Algae growth inhibited, which reduces the cost of water treatment.
• Less maintenance: The Bird Balls™ are virtually maintenance-free and have a long service life of 25-30 years.

fields of application

The Bird Balls™ are ideal for various applications:

• Airports: Reduction of evaporation in fire ponds and improving the Water qualityThis is particularly important for maintaining operational safety and compliance with environmental regulations.
• Open water ponds: Protection against evaporation and algae formation. The balls help to maintain the water quality and the Irrigation efficiency to improve.
• Open mines: Improving working conditions by reducing smells and increase in air qualityThis contributes to a safer and more pleasant working environment.
• Rainwater collection basin: Efficient use and conservation of Water resourcesBy reducing evaporation, more water is stored for later use.
• cooling basin: Reduction in operating costs due to less water loss. This is particularly beneficial in industries with high water consumption.

For more information on the application areas, please visit our application page.

Technical information

• Material: HDPE, UV-stabilized
• Diameter: 100 mm
• Weight 40 g (air-filled), 240 g (water-filled)
• Wind stability: 80 km/h (air-filled), 150 km/h (water-filled)
• Lifespan: 25-30 years under normal conditions

You can find more technical details in our data sheet.

Testimonials

Numerous satisfied customers confirm the effectiveness of Bird Balls™:

• Markus S., operations manager in the water industry: "The Bird Balls™ have proven to be extremely effective in our fire ponds. They reduce evaporation and keep energy costs low."
• Sabine K., environmental manager in the mining industry: “The working conditions in our open mines have improved considerably. The odor nuisance has been significantly reduced and the air quality is much better.”
• Jürgen L., Technical Director of an international airport: “At airports, Bird Balls™ have helped improve water quality in our stormwater collection basins and reduced maintenance costs.”

Euro-Matic's Bird Balls™ offer an efficient solution for minimizing water evaporation in fire ponds and other water reservoirs. Their use leads to a significant reduction in operating costs, improved water quality, and the sustainable use of water resources. Water management professionals should consider this innovative technology to effectively address the challenges of water evaporation.

For further information and inquiries about our Bird Balls™, please contact us directly.