4. The conditioned space of the shown year-round air conditioning system has sensible and latent heating loads of 17.6 and 5.86 kW, respectively for both winter and summer seasons. In addition, outside air is mixed with return air such that mo/ ms = 1/10. The space is kept at 21 °C and 40% RH. For winter operation, the outside air is at 5 °C and 20% RH while the air after spray has 100% RH. For summer operation, the outside air is at 35 °C and 40% RH while the supply air has 100% RH. Sketch the process on the psychrometric chart and calculate the followings: a- Mass flow rate of supply air ms?, for winter and summer operations. b- Temperature and relative humidity of supply air for winter and summer operation. c- d- Capacity of the heating and cooling coils. m Outside Air Retum Air mg Damper Heating Coil m Supply Air Cooling Coil