.Buildings.Fluid.HeatExchangers.ThermalWheels.Latent.Validation.SpeedControlled

Information

Example for the model Buildings.Fluid.HeatExchangers.ThermalWheels.Latent.SpeedControlled.

This example considers two wheels: wheUseDefCur employs a user-defined efficiency curve; wheDefCur employs a default efficiency curve

The input signals are configured as follows:

• The supply air temperature TSup changes from 273.15 + 30 K to 273.15 + 40 K during the period from 60 seconds to 120 seconds. The exhaust air temperature remains constant.
• The wheel speed uSpe changes from 0.7 to 1 during the period from 200 seconds to 360 seconds.
• The supply air flow rate and the exhaust air flow rate are constant.

The expected outputs are:

• The sensible heat exchanger effectiveness epsSen and the latent effectiveness epsLat, keep constant before the 200 seconds. After 200 seconds, both epsSen and epsLat increase.
• The leaving supply air temperature and the leaving exhaust air temperature follow the change of TSup before the 200 seconds. After 200 seconds, the leaving supply air temperature decreases and the leaving exhaust air temperature increases.
• The power consumption of the instance wheUseDefCur is higher than that of the instance wheDefCur when uSpe is less than 1. The power consumption of those two instances are identical when uSpe equals 1.

Contents

Name	Description
Medium	Air

Revisions

• September 29, 2023, by Sen Huang:
  First implementation.