Case study

Reducing energy costs with optimised filter selection

Key achievements

EUR 16K
saved.

12% less
CO2.

7.70m3 less
waste.

Customer:

Multinational manufacturer

Location:

France

Sector:

Manufacturer of optical fibres

Solution

At Camfil our drive to is provide our customers with the best "Life Cycle Cost" for the Individual clean air requirements of our customers that will help save our customers by reducing filter changeouts and reducing the energy consumption associated to the air filters. 

Camfil proposed to carry out an LCC study on an existing AHU with optimisation of the filtration chain:

The LLC study shows that significant savings are possible. On this AHU alone, over 3 years, the LCC shows :

  • Energy savings of €11,000 or 12%.
  • Total cost of ownership reduced by €16,500, or 16%.

The LCC study also predicts that the pre-filtration stage will last 3 times longer with the Dual10 premium solution, and more than 3 times longer for stages 2 and 3.


Process overview  

The company is a Fibre optics manufacturer based in France. Clean air is provided into the facility through multiple Air Handling units and HVAC system.

With different areas in the building a requirement for clean air is enhanced to protect people, products, processes and then environment.

In 2023, the fibre optics manufacturer decided that they wanted to take ownership of the air they breathe and manage the requirements of the building in-house.

As part of this change they decided to approach three companies to understand the best solution for their building. As part of Camfils proposal Energy efficiency and sustainability was at the forefront. 

Challenges  

  With taking over the responsibility for replacing air filters it became important that the end user wanted to undertake this job less frequently. A longer lasting solution                       was key. 

  Like all businesses Energy performance was at the fore. Ensuring that a solution offered not only provided the clean air requirements of the building but in the most                           energy optimised way was a core requirement.

 

Results

This theoretical study convinced the customer to carry out an in situ test by comparing 2 identical AHUs used as controls, one fitted with standard filters and the other with premium filters:

  • AHU1: current filtration system (standard) AeroPleat Coarse 65% / Hi-FloA ePM2.5 50% / Opakfil ST ePM1 80%.
  • AHU 2 optimised filtration chain Dual10 Metal ePM10 55% / Hi-Flo XLTePM2.5 50% / Opakfil ES ePM1 80%

IOT sensors installed by Camfil on these 2 AHUs were used to measure pressure drops over a 6-month period. Recording the pressure drop shows that Dual10 has a service life of 3 months, compared with 1 month for the AeroPleat prefilter.

This practical demonstration finished by convincing the end customer of the benefits of the Camfil solution:

  • Stage 1 (early 2024): 500 of the site’s 2,000 prefilters have been optimised in Dual10. The remaining pre-filters will be gradually replaced.
  • Stage 2 involves optimising the second filtration stage (bag filters).
  • Stage 3 involves optimising the third filtration stage (compact header frame filters)
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