Volume I - Section III - Evaluation of Results and Recommendations 
Page III - 19 
Fill 
Concentratn 
5.000 
4.286 
3.571 
2.857 
2.143 
1.429 
.714 
.000 
Figure 3.22 CO 2 Concentration (g/kg), Radial Diffuser with Low Level Exhaust ( Case 3) 
The slot diffuser seems least sensitive to exhaust position. This is probably due to the slot 
diffuser creating much higher entrainment and mixing due to the higher supply air velocity and 
increased jet area. 
The increase in temperature from the lower room ventilation efficiency, apparent in both the 
cages and the room for the low level exhausts, helps to keep the cage humidity levels low and 
reduces the NH3 production. 
