The Actual Room Sensible Heat Factor Line Is

Rshf c p t r t i h r h i 2.

The actual room sensible heat factor line is.

It can be expressed as. The room sensible heat factor line can also be drawn on the psychrometric chart without knowing the condition of supply air. The rshrs have all been averaged together for. 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. Rshf room sensible heat factor. Rshf q sr q tr 1. As shown this line may be drawn to the saturation line on the psychrometric chart.

Q tr total heat load in room kw btu hr 1 can be modified to. Q sr sensible heat load in room kw btu hr. In this scenario a room to room load calculation has been done on a home. The room sensible heat factor rshf expresses the ratio between sensible heat load and total heat load in a room.

If for example a room had a total. Draw the actual room sensible heat factor line through the room design conditions parallel to the base line in step 1 3 4 fig. Room sensible heat ratio rshr is the ratio of sensible heat to total heat including latent for a room or zone. 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.