Zone level efficiency: Effectiveness of zone level outdoor airflow to dilute indoor contaminantsģ. Ventilation rates: OA required to remove contaminants from people and building materialsĢ. Zone 2: Rp = 5 cfm/p Ra = 0.06 cfm/ft2 Pz = 10 people Az = 500 ft2 Ez = 1.0 (cooling)Ĭalculate Vbz and Voz:Zone 1: Rp = 5 cfm/p Ra = 0.06 cfm/ft2 Pz = 30 people Az = 1500 ft2 Ez = 1.0 (cooling)ĪSHRAE Standard 62.1/TRACE demonstration1. Where Pz is the number of people and Az is the zone areaģ. Calculate Breathing Zone Outdoor Airflow (Vbz)a. Ez = Define zone air distribution effectiveness (Table 6-2)Ģ. Rp = Outdoor airflow rate per person (Table 6-1)c. Ra = Outdoor airflow rate per unit area (Table 6-1)b. Define zone airflow rates and distribution effectivenessa. Learning objectives Describe the multi-zoneĮxample: Two zone officeCalculate required outdoor air intake VAV reheat system eLearning Tutorial ASHRAE Standard 62.1 and TRACE 700 ASHRAE 62.1: Section 6.2Ventilation Rate Procedure (VRP) Prescribes quantity of outdoor airĭelivered to each zone based How to calculate outdoor air flow
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