ANSI 301 Update: Correct the airtightness used for infiltration rate calculation #774
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…OpenStudio-ERI into infil_rate_calc_correction
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Modeled a middle interior apartment unit located in Climate Zone 6 with an exhaust-only mechanical ventilation system.
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shorowit
approved these changes
Apr 1, 2025
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This all looks good to me. Since I only want a changelog update, I'll just go ahead and make that change and then merge this in. Thanks, @bpark1327!
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| ach50 *= a_ext |
| _test_ruleset(hpxml_name, 'latest').each do |(_run_type, calc_type), hpxml_bldg| | ||
| if [CalcType::RatedHome].include? calc_type | ||
| _check_infiltration(hpxml_bldg, ach50: 10.1, height: 8.0, volume: 7200.0) | ||
| _check_infiltration(hpxml_bldg, ach50: 2.49, height: 8.0, volume: 7200.0) |
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Pull Request Description
Correct the airtightness used for infiltration rate calculation is based on test results but not less than 0.3 ACHnatural when Aext < 0.5 and the mechanical ventilation system is exhaust-only,
Checklist
Not all may apply:
openstudio tasks.rb update_hpxmls)rulesets\testsand/orworkflow/tests/*_test.rb)openstudio tasks.rb update_measureshas been run