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The Glass Pool · WAESCHEREI

Ironer & simultaneity

Laundry — washing, drying, ironing. Part of the glass family — like our glass BESS, biogas plant and CHP.

Ironer & simultaneity
Washing → Drying → Ironer → Service connection
Glass-box in 4 steps

Understand → See it live → What the AI does → Your benefit

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Understand
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See it live
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What the AI does
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Your benefit

What is Ironer & simultaneity?

The flatwork ironer draws a lot of power while heating up and holds it afterwards. If it starts together with the dryers, the laundry’s morning peak forms — and often the annual maximum of the whole building.

The lever is not the machine but the sequence: the same volume of linen, just not all inside the same quarter-hour.

What is measured here

  • Electrical power of the ironer and heat-up duration
  • Simultaneity with dryers and washers
  • Quarter-hour total of the laundry at the feeder
  • Idle periods: heated up but with no throughput

How we connect it — read-only

  • Modbus sub-meter at the laundry feeder for the aggregate load.
  • Individual meters per large machine where the distribution board allows.
  • Clamp-on current transformers as a retrofit without touching the wiring.

Schematic (native, live)

Laundry — washing, drying, ironing.

WashingIronerService connection

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

Live —

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What the AI does

  • Staggers heat-up so ironer and dryers do not start together.
  • Detects idling: the ironer standing hot with no linen running through.
  • Places the start of heat-up before the building’s peak rather than inside it.
  • Shows the laundry’s share of the annual maximum — measured, not estimated.

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

Laundry share of the peak

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

Standards & norms

What the rules require — Ironer & simultaneity

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 the peak form in the morning?

Because that is when linen throughput is concentrated and heat-up, drying and ironing coincide. In many properties the most expensive quarter-hour of the year sits in exactly that window.

Basis: plant engineering

How much demand charge hangs on the laundry?

That only follows from measurement at the feeder: the laundry’s share of the highest quarter-hour of the year. Before that, any figure is guesswork.

Basis: plant engineering

Does the operation have to change?

No — this is about start times, not workflows. The same volume of linen runs through, just spread out in time.

Basis: plant engineering

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