The Glass Pool · KUECHE

Kitchen exhaust

Kitchen — refrigeration, dishwashing, cooking, exhaust. Part of the glass family — like our glass BESS, biogas plant and CHP.

Kitchen exhaust
Cooking block Exhaust & grease filter Fan Replacement air
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What is Kitchen exhaust?

Kitchen ventilation moves large air volumes through grease separation. In many buildings it runs flat out continuously, although the cooking equipment only produces load at times.

Every cubic metre of exhaust must be replaced as supply air and heated or cooled. Exhaust is therefore expensive twice over: once for the fan, once for conditioning the replacement air.

What is measured here

  • Volume flow of exhaust and supply air
  • Fan power (EC fans report it directly)
  • Filter pressure drop — grease filters clog
  • Demand signal: temperature or flue sensing above the cooking blocks

How we connect it — read-only

  • EC fans over Modbus — speed, power, running hours.
  • Differential pressure sensor at the grease filter.
  • Temperature sensor in the exhaust as a demand signal.

Schematic (native, live)

Kitchen — refrigeration, dishwashing, cooking, exhaust.

Cooking blockFanReplacement air

Overview: The Glass Pool → · Markets: pool markets →

Live —

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What the AI does

  • Runs the ventilation on demand instead of flat out.
  • Detects clogged grease filters from rising pressure drop — before extraction falls off.
  • Balances exhaust and supply air so no negative-pressure problems arise.
  • Counts the conditioning effort for the replacement air, not just the fan power.

Method proven on a live European reference aquatic center; presented anonymously.

Replacement air cost

Estimate from metered / design values. Zero-grid-import windows are real (metered).

Standards & norms

What the rules require — Kitchen exhaust

Grounded in DIN 19643, VDI 2089, DGfdB and the German Buildings Energy Act. Same knowledge base as the European reference site; presented anonymously.

Why does kitchen exhaust cost more than the fan consumes?

Because every extracted air volume has to be replaced as supply air and, depending on the season, heated or cooled. In many buildings that conditioning clearly exceeds the fan power.

Basis: plant engineering

Can kitchen ventilation be turned down?

On demand, yes — extraction must reliably cover actual cooking. Sensing above the cooking blocks provides the signal; safety and hygiene set the lower limit, not the wish to save.

Basis: plant engineering

How do you spot a clogged grease filter?

From the rising differential pressure at the same volume flow. The fan has to work harder long before extraction performance noticeably drops.

Basis: plant engineering

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