{
  "abstract": "This disclosure describes a sealed air-to-air heat exchanger system designed for cooling electrical enclosures while preventing the ingress of dust and other airborne contaminants. The system is sized to maintain a specified internal temperature gradient relative to the ambient environment, avoiding issues associated with filtered fan systems where filter maintenance is neglected. It details the heat exchange mechanism, control strategies for condensation, and identifies specific failure modes that standard temperature monitoring may not detect, ensuring reliable operation for critical infrastructure.",
  "canonical_url": "https://opentechnical.org/p/OT-2026-000000059",
  "categories": [
    "industrial-components-safety-infrastructure/electrical-infrastructure/enclosures-and-cooling"
  ],
  "extent": {
    "figures": 2,
    "paragraphs": 17,
    "words": 2521
  },
  "figures": [
    {
      "caption": "A block diagram illustrating the sealed enclosure cooling system with internal and external air circuits.",
      "derivative": {
        "file": "figures/fig-001.png",
        "media_type": "image/png",
        "sha256": "40d82d2146664286f0dc5afc26b80f3677a90b5181d9830e978149a8b6d7b04f"
      },
      "file": "figures/fig-001.svg",
      "number": "FIG-001",
      "sha256": "108e87f81630de60f09f71c5763413faf233b773622ea5a412a693f33884ef60"
    },
    {
      "caption": "An elevation view of the air-to-air heat exchanger core and associated components.",
      "derivative": {
        "file": "figures/fig-002.png",
        "media_type": "image/png",
        "sha256": "f7a80a7e226cf9f559f4ee493c623a053c2778f5270a861e18f2c4a8e1fd8f02"
      },
      "file": "figures/fig-002.svg",
      "number": "FIG-002",
      "sha256": "5f156b5a0d81dfa7a7f335e6c6cbdff980258f9d0676d2a16bfaf40b63cdd3ca"
    }
  ],
  "files": [
    {
      "bytes": 28685,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "21f376bec4eb97f048b6dc65b6dff59dd791156a8db737dc1644f9b0534f8b17"
    },
    {
      "bytes": 17705,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "2a5faf704f561a1068ad8beebd43c66c8156f2145cdc368a7d9fdebd0fd99659"
    },
    {
      "bytes": 74002,
      "media_type": "application/pdf",
      "name": "publication.pdf",
      "sha256": "dd53aca3624ea29b0834ee01487bcb9c91e5220e0681edacfc774b52f022c1ee"
    },
    {
      "bytes": 17665,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "31d817ce28e5f07dc2260cc39798c925572faaf20aa4ee5a3e354e2db5197452"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000000059/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "enclosure cooling",
    "air-to-air heat exchanger",
    "sealed system",
    "thermal management",
    "delta-t sizing",
    "condensation control",
    "electrical infrastructure",
    "dust ingress prevention",
    "heat transfer coefficient",
    "thermal alarm"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000000059",
  "published_at": "2026-09-15T11:57:18.234328Z",
  "publisher": "Nebula Innovations Limited",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": null,
  "title": "Sealed Enclosure Cooling with Internal Delta-T Sized Air-to-Air Exchanger",
  "uuid": "01a0a4ed-ba17-75d3-9767-2146771a08a6"
}