Search results with tag "Required airflow"
Understanding Chilled Beam Systems - Trane
www.trane.comthe primary airflow required for space sensible cooling. A survey of performance data from various chilled beam manufacturers indicates that the typical primary airflow rate for active chilled beams ranges from 0.30 to 0.70 cfm/ft2. This is typically higher than the minimum outdoor airflow required by ASHRAE 62.1-2007 for many applications.
Applying ASHRAE Standard 62.1: Ventilation for Acceptable ...
software.trane.comoutdoor airflow required for each ventilation zone. Determine minimum outdoor airflow requirement, Vbz, for each breathing zone(s) The breathing zone outdoor airflow (V bz), is determined using Equation 6-1 from ASHRAE Standard 62.1. Vbz = (Rp · Pz) + (Ra · Az ) where Vbz = breathing zone outdoor airflow
ELECTRONICALLY COMMUTATED MOTORS Part 2: Constant …
www.rses.orgincorrect for the required airflow, the motor control can increase or decrease the torque (current) to the motor. This, in turn, will increase or decrease the speed of the motor to maintain airflow. By constantly monitoring the actual speed of the motor, and maintaining the torque/speed relationship programmed by the HVAC OEM, the motor control ...
Fans & Blowers Technical Data - NIDEC SERVO
www.nidec-servo.comwww.nidec-servo.com 2008/2009 Fans&Blowers Axial Centrifugal Silent Axial Centrifugal Option DCfans ACfans 4. Fan and blower selection The required airflow and ventilating resistance of equipment must be