Building Energy Standards Air Conditioner Data Update #1682
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lymereJ
changed the title
…onversion, fix lookup issues.
…dio-standards into data_update_99d14b7
lymereJ
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Apr 5, 2024
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| # Convert from IEER to COP (no fan) | ||
| # | ||
| # @note IEER is a weighted-average efficiency metrics at different load percentages, operataional and environemental conditions | ||
| # @note IEER should be modeled by using performance curves that match a targeted efficiency values | ||
| # @note This method estimates what a reasonable full load rated EER would be for a targeted IEER value | ||
| # @note The regression used in this method is based on a survey of over 1,000 rated AHRI units with IEER ranging from 11.8 to 25.6 | ||
| # @todo Implement methods to handle IEER modeling | ||
| # | ||
| # @param ieer [Double] Energy Efficiency Ratio (EER) | ||
| # @return [Double] Coefficient of Performance (COP) | ||
| def ieer_to_cop_no_fan(ieer) | ||
| eer = 0.0183 * ieer * ieer - 0.4552 * ieer + 13.21 | ||
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| return eer_to_cop_no_fan(eer) | ||
| end | ||
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New method to convert an IEER to a COP no fan. Note that this is just to estimate what would a reasonable full load gross COP would be for a specific IEER value. IEER-specific performance curves should then be applied. Copper could be used when it supports IEER rated equipment.
…dio-standards into data_update_99d14b7
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Updates have been made to the Building Energy Standards Data repository, see here. This pull request was automatically generated.