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Introduction to ASHRAE 205 – A New Standard for HVAC&R Performance Maps.

Number: 2127

Author(s) : MUEHLEISEN R. T., BARNABY C. S., KRUIS N., MCDOWELL T. P.

Summary

Heating, cooling, ventilation, and refrigeration accounts for about 55% of energy use in buildings in the US (about 21 quads in 2021), hence accurate performance data of HVAC&R equipment is important in using computer models to select HVAC&R equipment, design control systems, predict building energy use during design, and helping to diagnose equipment problems during operation. The information available about HVAC&R equipment performance is generally limited and is published in inconsistent formats. Software programs often differ in how they interpret the available data and how they then model the HVAC&R equipment performance. Software can differ greatly in their predictions of HVAC&R equipment performance outside of the specific conditions used in testing HVAC&R equipment for various certifications. To improve the accuracy of HVAC&R performance prediction and the consistency of modeling HVAC&R performance between different software packages, ASHRAE has been developing Standard 205: Representation of Performance Data for HVAC&R and Other Facility Equipment. Standard 205 defines a common data model and serialization format for facility equipment performance data, allowing consistent and automated exchange among data sources (equipment manufacturers), simulation models, and engineering applications. Standard 205 defines a human readable JSON Schema used for defining data models and formats and Concise Binary Object Representation (CBOR) as the serialization format for the actual data file. This paper introduces Standard 205, the general representation format, and walks through a specific example of implementation for a piece of HVAC equipment.

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Pages: 9 p.

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Details

  • Original title: Introduction to ASHRAE 205 – A New Standard for HVAC&R Performance Maps.
  • Record ID : 30030479
  • Languages: English
  • Subject: Regulation
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022/07/10

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