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    • Data from Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner

    Metadata Updated: July 29, 2022

    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:

    Report Title: "Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner", NIST Technical Note 2068 Publication Date: October 2019 DOI: https://doi.org/10.6028/NIST.TN.2068 Authors: Harrison Skye, Wei Wu

    The 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.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://doi.org/10.6028/NIST.TN.2068

    Dates

    Metadata Created Date March 11, 2021
    Metadata Updated Date July 29, 2022

    Metadata Source

    Harvested from NIST

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 11, 2021
    Metadata Updated Date July 29, 2022
    Publisher National Institute of Standards and Technology
    Maintainer
    Identifier ark:/88434/mds2-2142
    Data First Published 2020-01-13
    Language en
    Data Last Modified 2019-10-11 00:00:00
    Category Energy:Energy efficiency
    Public Access Level public
    Bureau Code 006:55
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 5c576b57-156f-4bee-9977-57da24296f58
    Harvest Source Id 74e175d9-66b3-4323-ac98-e2a90eeb93c0
    Harvest Source Title NIST
    Homepage URL https://data.nist.gov/od/id/mds2-2142
    License https://www.nist.gov/open/license
    Program Code 006:045
    Related Documents https://doi.org/10.6028/NIST.TN.2068
    Source Datajson Identifier True
    Source Hash e2d4b46574ff8aad4e5c07de17b6e6557e11257c
    Source Schema Version 1.1

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