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SoojustagastusJärlepa2021

Heat energy recovery from paint lines

We installed a heat recovery ventilation unit on one of the spraying lines at Harviker OÜ's furniture factory, capturing thermal energy from the air exhausted by the finishing machine and drying oven and using it to preheat the supply air. The system operates automatically, monitoring the volume of exhausted air and the vacuum in the factory with pressure sensors. In addition, we assisted in setting up the drying oven previously procured by the client and carried out the installation and connection of the heating water pipelines.

ClientHarviker OÜ
Heat energy recovery from paint lines

Project challenge

The large air volumes of the finishing machines are directed outdoors, which creates a significant vacuum in the factory, and the air returned to the space in turn requires heating. The growing green mindset and rising energy prices were the reasons for the decision to invest in a heat recovery system.

How we built the solution

We installed a ventilation unit with heat recovery on one spraying line, whose task is to capture and utilize the thermal energy from the exhaust air. In this project, we use the energy to preheat the supply air.

  • Ventilation unit with heat recovery for one spraying line
  • Capturing thermal energy from the exhaust air of both the finishing machine and the drying oven
  • Installation of a previously acquired drying oven for the finishing line
  • Installation and connection of heating water pipelines

Automation and remote management

In order for the system to operate automatically, the automation monitors the volume of exhaust air and the vacuum in the factory using pressure sensors.

Result

The thermal energy captured from the exhaust air of the finishing line is used to preheat the supply air, which reduces energy consumption and supports the client's green mindset. In addition, with our help, the client set up the previously acquired drying oven together with the heating water pipelines.

Galerii

FAQ

Frequently asked questions

What does the heat recovery system provide for Harviker OÜ?
The system captures thermal energy from the finishing line's exhaust air and uses it to preheat the incoming air. This reduces energy costs and supports the client's green mindset.
Where is the thermal energy collected from?
Thermal energy is captured from both the finishing automat and the drying kiln exhaust air. It is then used to preheat the incoming supply air.
How does the system operate automatically?
The automation monitors the volume of exhaust air and the vacuum in the factory using pressure sensors. This allows the system to operate independently.
What problem does the solution address?
The large air volumes from the finishing automats are directed outside, creating a vacuum in the factory and a need to heat the returned air. Heat recovery allows the exhaust air's warmth to be reused.
What did the project include besides heat recovery?
We installed a heat recovery ventilation unit on one spraying line and helped set up the previously acquired drying kiln. We also installed and connected the heating water pipelines.

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