{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "bureauCode": [
    "006:55"
  ],
  "contactPoint": {
    "fn": "Harrison M. Skye",
    "hasEmail": "mailto:harrison.skye@nist.gov"
  },
  "description": "These data from the laboratory tests of a prototype residential liquid-to-air ground-source air conditioner (GSAC) using CO2 as the refrigerant.  The data collection and processing methods are described in detail in this report:\n\nReport Title:  \"Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner\", NIST Technical Note 2068\nPublication Date: October 2019\nDOI: https://doi.org/10.6028/NIST.TN.2068\nAuthors: Harrison Skye, Wei Wu\n\nThe tests were performed in an environmental chamber and followed the ISO 13256-1 standard for rating GSHPs.  The CO2 GSAC operated either in a subcritical or a transcritical cycle, depending on the entering liquid temperature (ELT).  The test results included the coefficient of performance (COP), capacity, sensible heat ratio (SHR), and pressures.  The system incorporated a liquid-line/suction-line heat exchanger (LLSL-HX), which was estimated to cause a COP penalty of (0 to 2) % for ELTs ranging (10 to 25) °C, and benefit of (0 to 5) % for ELTs ranging (30 to 39) °C.  With ELTs ranging (10 to 39) °C the CO2 system cooling COP ranged (7.3 to 2.4).  At the standard rating condition (ELT 25 °C), the CO2 GSAC cooling COP was 4.14, and at part-load conditions (ELT 20 °C) the system had a COP of 4.92.",
  "distribution": [
    {
      "accessURL": "https://doi.org/10.18434/M32142",
      "title": "DOI Access for Data from Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner"
    },
    {
      "description": "Description of the dataset",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-2142/README.txt",
      "format": ".txt",
      "mediaType": "text/plain",
      "title": "Readme"
    },
    {
      "description": "This data is from the appendix of the publication. The data are for the system at steady state, and are an average of 120 samples taken over 30 minutes.",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-2142/CO2_GSAC_Lab_Tests%20%28TN%202068%29%20-%20Appendix%20data.csv",
      "format": "Comma Separated Values (CSV)",
      "mediaType": "application/vnd.ms-excel",
      "title": "Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner, NIST Technical Note 2068"
    },
    {
      "description": "This data is from the appendix of the publication. The data are for the system at steady state, and are an average of 120 samples taken over 30 minutes.",
      "downloadURL": "https://data.nist.gov/od/ds/mds2-2142/CO2_GSAC_Lab_Tests%20%28TN%202068%29%20-%20Appendix%20data.xlsx",
      "format": "Microsoft Excel (*.xlsx)",
      "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
      "title": "Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner, NIST Technical Note 2068"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/mds2-2142/CO2_GSAC_Lab_Tests%20%28TN%202068%29%20-%20Appendix%20data.csv.sha256",
      "mediaType": "text/plain",
      "title": "SHA256 File for Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner, NIST Technical Note 2068"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/mds2-2142/CO2_GSAC_Lab_Tests%20%28TN%202068%29%20-%20Appendix%20data.xlsx.sha256",
      "mediaType": "text/plain",
      "title": "SHA256 File for Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner, NIST Technical Note 2068"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/mds2-2142/README.txt.sha256",
      "mediaType": "text/plain",
      "title": "SHA256 File for Readme"
    }
  ],
  "identifier": "ark:/88434/mds2-2142",
  "issued": "2020-01-13",
  "keyword": [
    "Air conditioner",
    "CO2",
    "carbon dioxide",
    "ground-source heat pump",
    "subcritical and transcritical cycles"
  ],
  "landingPage": "https://data.nist.gov/od/id/mds2-2142",
  "language": [
    "en"
  ],
  "license": "https://www.nist.gov/open/license",
  "modified": "2019-10-11 00:00:00",
  "programCode": [
    "006:045"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "National Institute of Standards and Technology"
  },
  "references": [
    "https://doi.org/10.6028/NIST.TN.2068"
  ],
  "theme": [
    "Energy:Energy efficiency"
  ],
  "title": "Data from Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner"
}