Blog article

Waste heat recovery in air compressors: Lower your energy costs and consumption

As you are no doubt aware, energy costs are skyrocketing, and for many industries, efficiency is no longer an option. Faced with stricter regulations and rising expenses, industrial players are looking for innovative ways to reduce their costs and emissions.

One particularly effective solution is the recovery of waste heat from air compressors. This article explains how it works, why it is important, and how you can benefit from it.

Waste heat recovery

What is waste heat recovery and how does it work?

First of all, what is a heat recovery system? Every air compressor generates heat during operation, and instead of letting this heat go to waste, heat recovery systems capture and reuse it, for example to heat water for industrial processes or heat your facilities during the colder months.

By integrating a heat recovery system, you transform wasted energy into usable heat, reducing your dependence on external energy sources.

Why waste heat recovery matters for your energy consumption

Research shows that 94% of the energy consumed by air compressors is recoverable.

For example, this means that heat recovery could save 1.99% of total industrial energy consumption in a country such as the United Kingdom. This is equivalent to removing 913,000 diesel or gasoline cars from the road each year!

Therefore, implementing heat recovery is not only beneficial for your bottom line, it’s also an important step towards better management of energy consumption.

Slash energy costs with heat recovery

Did you know? Compressed air systems account for 12% of manufacturers' total energy costs, and can even reach up to 40% in some cases. Given that 94% of this energy is recoverable, the potential for savings is enormous.

Here is an example of a specific case involving one of our clients.

A British car manufacturer installed a heat recovery system to heat the water used in production. Results:

  • Reduction in CO₂ emissions of 260,000 tons/year
  • Annual savings of €43,473

When energy costs account for 80% of air compression expenses, these savings are truly game-changing.

FAQs

Up to 94% of the energy used by air compressors can be recovered and reused through heat recovery systems, maximizing efficiency and reducing waste.

Heat recovery systems can lead to significant cost savings. For instance, one manufacturer saved €43,473 per year by using recovered heat for production processes.

Compressed air systems can account for up to 40% of a manufacturer’s total energy costs.

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