Volume I - Section IV - Experimental Work and Verification of CFD Methodology 
Page IV - 65 
4. 1 .2.8.3 Consideration of Heat Generation 
Using the O 2 consumption data averages from the two tests for the different desired RH values, 
and the lights on/off conditions, the heat generation from the mice can be calculated. The results 
are shown in table 4.1.12 below, and are presented graphically in figure 4.42: 
Table 4.1.12. Heat Generation Rates for Lights On/ Off Conditions in Tests 1 and 2. 
O 2 Consumed 
(L/hr/ kg bw) 
Heat Production 
(Kcal/hr/Kg 
BW)* 
Heat Production 
per cage (W/ 
lOOg bw) 
Test 1: 
Desired RH 30-35 
(Lights On) 
3.49 
16.83 
1.96 
Desired RH 30-35 
(Lights Off) 
4.16 
20.06 
2.33 
Desired RH 75-80 
(Lights On) 
3.95 
19.83 
2.30 
Desired RH 75-80 
(Lights Off) 
4.14 
19.98 
2.32 
Test 2: 
Desired RH 30-35 
(Lights On) 
4.06 
19.57 
2.27 
Desired RH 30-35 
(Lights Off) 
4.91 
23.71 
2.76 
Desired RH 75-80 
(Lights On) 
5.46 
26.34 
3.06 
Desired RH 75-80 
(Lights Off) 
6.00 
28.94 
3.36 
* Heat production was based on a heat production rate of 4.825Kcal/L O 2 . 
It can be noted that there is an increase in heat generation between the lights on and lights off 
conditions, and there is also an increase on moving from a low RH to a high RH cage condition. 
The average value from all the experiments is 2.55 W/lOOg bw, an 11 percent difference from 
the ASHRAE value of 2.3 W/ lOOg bw, obtained from equation 4.1 (see section 4. 1.1.2). This 
indicates that the current experiment is consistent with previous recommendations. 
