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[EnergyPlus_Support] Ventilation Requirements per ASHRAE 90.1 Appendix G with a DOAS system
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- Subject: [EnergyPlus_Support] Ventilation Requirements per ASHRAE 90.1 Appendix G with a DOAS system
- From: "curtisjclark" <cjcfromslc@xxxxxxxxx>
- Date: Tue, 03 Apr 2012 15:55:34 -0000
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- Delivery-date: Tue, 03 Apr 2012 09:55:36 -0600
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We are using a DOAS system which delivers 100% outdoor air to the space. In the Baseline model (appendix G), it is a VAV system which delivers mixed outdoor air with return air.
To meet the requirements of ASHRAE 62.1 in the Baseline model, I used the Ventilation Rate Procedure calculation method to determine the minimum outdoor air by using the Controller:MechanicalVentilation object with the same ventilation rates as in the DOAS system.
The report for "Controller:OutdoorAir" shows the two system have same Minimum Outdoor Air Flow Rate. However, the report "Minimum Outdoor Air During Occupied Hours" shows a 84% reduction in outdoor air.
Have I meet the requirements of Appendix G3.1.2.6 for ventilation?
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