The Actual Room Sensible Heat Factor Line Is

Room sensible heat ratio rshr is the ratio of sensible heat to total heat including latent for a room or zone.

The actual room sensible heat factor line is.

The following procedure illustrates how to plot this line using the calculated rshf the room design conditions the sensible heat factor scale in the upper right hand corner of the psychrometric chart and the alignment circle at 24 c dry bulb and 50 relative humidity. 75 db 50 rh. As shown this line may be drawn to the saturation line on the psychrometric chart. Rshf room sensible heat factor.

It can be expressed as. Effective room latent heat erlh is the sum of all latent heat gain that occurs in the room including the gain due to the portion of the ventilation air which is bypassed. In this scenario a room to room load calculation has been done on a home. Effective room sensible heat ersh is the sum of all sensible heat gain that occurs in the room including the gain due to the portion of the ventilation air which is bypassed.

If for example a room had a total. Assuming a room to room load calculation has been done on a building the next step in utilizing the psychrometric chart would be to plot out the room sensible heat ratio lines for each zone. Q sr sensible heat load in room kw btu hr. The room sensible heat factor line can also be drawn on the psychrometric chart without knowing the condition of supply air.

Rshf q sr q tr 1. Draw the actual room sensible heat factor line through the room design conditions parallel to the base line in step 1 3 4 fig. Q tr total heat load in room kw btu hr 1 can be modified to. Rshf c p t r t i h r h i 2.