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LEEF Low GWP Technology – The Future of Environmental Testing

02 LEEF Low GWP Technology

Low GWP (Global Warming Potential) technology is becoming a vital tool in environmental testing. One of the most interesting developments in this field is LEEF (Leading Energy Efficiency Footprint) Technology. In this section, we will discuss what LEEF technology is, how it works and why it is becoming the preferred choice for environmental testing. 

LEEF technology, an innovative and sustainable concept

LEEF (Leading Energy Efficiency Footprint) technology is a Weiss Technik refrigeration innovation that offers multiple benefits for environmental test chambers. This technology is based on the use of low GWP refrigerants and allows for reduced test time, improved test accuracy, and energy savings, which results in reduced environmental impact and increased economic performance.

What’s the GWP value?

The GWP value is an indicator of the global warming potential of a gas compared to carbon dioxide (CO2). CO2 has a GWP value of 1, and the GWP value of other gases is measured according to their impact on global warming relative to CO2. The higher the GWP value of a gas, the greater its ability to trap heat in the atmosphere and contribute to climate change. Therefore, refrigerants with a lower GWP value are considered more environmentally friendly. 

How does LEEF technology works?

LEEF technology consists of an advanced cascade refrigeration system that uses a low GWP (global warming potential) refrigerant called R-449A. This refrigerant has a 64% lower GWP value than R-404A, which is the most commonly used refrigerant in environmental test chambers. The use of R-449A helps meet increasingly stringent environmental standards and regulations, such as the EPA’s AIM (American Innovation and Manufacturing) Act, which aims to reduce HFC (hydrofluorocarbon) production and consumption by 85% over the next 15 years, (which started in 2022).

In addition, LEEF technology incorporates intelligent temperature and humidity control that adapts the operation of the refrigeration system to actual chamber conditions. This makes it possible to optimize energy use (save up to 40% compared to conventional technology), which is well documented in Weiss Technik’s LEEF white paper.

What are the advantages of using LEEF technology?

LEEF technology offers several advantages for environmental test chambers, both from a technical, economic and ecological point of view. Some of these advantages are:

  • Reduced test time: LEEF technology allows reaching the desired temperature and humidity values in less time than conventional technology, resulting in higher productivity and efficiency.
  • Improved test accuracy: LEEF technology ensures greater stability of temperature and humidity within the chamber, resulting in higher reliability and quality of results.
  • Energy savings: LEEF technology reduces electrical energy consumption by adapting the operation of the cooling system to the actual chamber conditions, resulting in lower electrical bills and increased cost-effectiveness.
  • Reduced environmental impact: LEEF technology reduces greenhouse gas emissions by using a low GWP refrigerant, resulting in a smaller environmental footprint and greater social responsibility.

Which industrial sectors benefit from this technology?

LEEF technology is suitable for a wide variety of industry sectors that require environmental testing, such as automotive, aerospace, electronics, energy, food and pharmaceuticals. LEEF technology is especially useful for companies looking to reduce their environmental impact and improve their profitability at the same time. The benefits of this technology apply to any industry sector that requires environmental testing for product development, from research and development to quality control.

Where can you obtain LEEF technology?

At Weiss Technik we are the first environmental test chamber manufacturer to apply LEEF technology and R-449A refrigerant in all of our chambers that previously used R-404A. We have redesigned and thoroughly tested the refrigeration systems to ensure that the use of R-449A has no loss of performance and reliability.

The Weiss Technik LEEF Technology is a patented system for environmental test chambers.

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