Room Sensible Heat Factor Line

The sensible heat generated within a room is 4 kw.

Room sensible heat factor line. ǭs sensible heat calculated w ǭt sensible heat latent heat in w the shf line ab in figure 1 is through. Effective room sensible heat load ersh rsh bpf x outside air sh effective room latent heat load erlh rlh bpf x outside air lh hence ershf frac ersh ersh erlh. Effective room sensible heat room sensible heat supply duct sensible heat portion of outdoor air bypassed through the apparatus. 75 db 50 rh outdoor design conditions.

Shf ǭs ǭt where. This latent heat results only in hase change. Sensible heat is the amout of heat absorbed or rejected by a system resulting in the increase or decrease of the temperature of the system. Consider 1kg of ice at 00 0 degree to be changed to liqiud at 30 degrees.

This equation is not strictly correct because the by pass factor should be applied to the gth line. Rth rsh rsh rlh rsh rshf equation 9 2. There is another heat factor called the latent heat. 7 200 btuh room total heat.

This increase in heat is called sensible heat. The latent heat generated is 1 4 kw. Room sensible heat factor is the ratio of room sensible heat to the summation of room sensible heat and room latent heat. Sensible heat formula for hvac engineers where does q 1 08 cfm δt come from.

The sensible heat ratio can be calculated as shr 1 005 kj kgoc 26 oc 20 oc 47 kj kg 37 kj kg 0 6 60 of the load provided to the room heats the air sensible load and 40 of the load provided humidifies the air latent load. The ratio between sensible heat and total heat is known as the sensible heat factor shf. 0 70 room design conditions. 90 db 80 wb ventilation requirement.

The room sensible heat factor can be calculated as. Rshf 4 kw 4 kw 1 4 kw. This ratio is expressed in the following formula. Mitchell paulus 47 982 views.