Pith Number

pith:MYQD7ECU

pith:2026:MYQD7ECUTGPNR7276HKPS446HL

not attested not anchored not stored refs resolved

Optimizing Chilled Water Systems with Cooling Towers via Virtual Power Metrics and Extremum-Seeking Control

Alex Vlachokostas, Karthik Devaprasad, Matt Cornachione, Min Gyung Yu, Stephanie Johnson, Tim A. Yoder, Timothy I. Salsbury

An extremum-seeking controller for cooling tower fans minimizes total chilled water plant power with virtual power meters.

arxiv:2605.15431 v1 · 2026-05-14 · eess.SY · cs.SY

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3 Author claim open · sign in to claim

4 Citations open

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Claims

C1strongest claim

Simulation studies across different climate locations demonstrate energy savings of approximately 15% compared to conventional control during summer conditions. Validation tests for the VPMs against physical meters showed good accuracy with a correlation of 96.11% and a normalized error of 5.11%.

C2weakest assumption

The extremum-seeking controller can locate and track the true minimum of total plant power by varying only cooling-tower fan speed while all other system components and loads remain unchanged or are correctly captured by the simulation model (implicit in the ESC convergence analysis and the summer-condition simulation setup).

C3one line summary

Extremum-seeking control for cooling tower fans plus virtual power meters achieves ~15% simulated energy savings in chilled water plants while maintaining 96% correlation to physical meters.

References

42 extracted · 42 resolved · 0 Pith anchors

[1] Michael F. Modest. Radiative Heat Transfer. 1993 1993

[2] The importance of correct albedo determination for adequately modeling energy received by tilted surfaces 1987

[3] Nouidui and Xiufen Pang 2013

[4] Salsbury and Trevor Terrill and James Goddard and Min Gyung Yu and Tim Yoder and Xiaoli Duane , title =

[5] 2018 CBECS Survey Data , url =. 2018 , author= 2018

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:58.323229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66203f9054999ed8ff5ff1d4f9739e3aec027c8dcd8d0e6648689d40695c152f

Aliases

arxiv: 2605.15431 · arxiv_version: 2605.15431v1 · doi: 10.48550/arxiv.2605.15431 · pith_short_12: MYQD7ECUTGPN · pith_short_16: MYQD7ECUTGPNR727 · pith_short_8: MYQD7ECU

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MYQD7ECUTGPNR7276HKPS446HL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 66203f9054999ed8ff5ff1d4f9739e3aec027c8dcd8d0e6648689d40695c152f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ebe4c4810ac0dab53090ed896c24d39f0f8b041898f640e4adec069e73a7876",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-05-14T21:25:44Z",
    "title_canon_sha256": "10fa220e78713b34ef3bbeed505e7f33a114e1dca21572f0facc091f51985d3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15431",
    "kind": "arxiv",
    "version": 1
  }
}