Volume I - Section IV - Experimental Work and Verification of CFD Methodology 
Page IV ■ 47 
the dehumidification system, and relative humidity and temperature readings of the calorimeters 
and chamber. 
4. 1.2. 5 Recovery Ratio of CO 2 and O 2 Calculation. 
Assumptions: EtOH has a molecular weight of 46.0694, 22.414 liters (L) of gas per mole, and 
4.9 Kcalories of energy per L O 2 consumed, and 7.1 Kcal/g of heat of combustion. 
According to: 
C 2 H 6 O + 3 O 2 — > 2 CO 2 + 3 H 2 O + Energy 
2CO- 
RQ = 
O 
0.67 
(4.5) 
(4.6) 
Equation to calculate CO 2 generation rate and O 2 consumption rate from sample air: 
( c °2out -COgJxM (4.7) 
P = 
r C02 
100 
p _ (^2in (~^2out X M 
02 100 
Where: 
Pco 2 , P 02 
C02out» 02out 
COani 02in 
M 
(4.8) 
CO 2 generation rate and O 2 consumption rate, L/min. 
CO 2 concentration and O 2 concentration of sample air, percent. 
CO 2 concentration and O 2 concentration of chamber air, percent. 
Air exchange flow rate, L/min. 
Respiratory quotient (RQ): 
RQ = fc02 
Pro 
(4.9) 
Equation to calculate CO 2 generation rate and O 2 consumption rate from burning EtOH: 
EtOH 
Dx 22.414 xF 
10x46.069 
(4.10) 
where: 
EtOH CO 2 generation rate and O 2 consumption rate from burning EtOH, L/min 
D Burning EtOH weight in 10 minutes, g 
F Factor: 2 for CO 2 and 3 for O 2 . 
