Energy balance at cst volume

Equation de combustion :

$$ \phi CH_y + \lambda ( 1 + \frac{y}{4}) ( O_2 + 3.76 N_2) \rightarrow CO_2 + \frac{y}{2} H_2 O + 3.76(1 + \frac{y}{4}) N_2 $$

$$ \rightarrow \phi CO_2 + \phi\frac{y}{2} H_2 O + \phi 3.76(1 + \frac{y}{4}) N_2 + (1 - \phi) ( 1 + \frac{y}{4})( O_2 + 3.76 N_2) $$

$$ \rightarrow \phi (m_{a1} + 1) + (1 - \phi) m_{a1} $$

Avec

$m_{a1} = \left ( \frac{m_a}{m_g}\right) _{stoe}$

$\phi = \frac{(m_f / m_a )}{(m_f / m_a){stoe}} = \frac{m_f \cdot m{a1}}{m_a}$ → phi

$\lambda = \frac{1}{\phi}$

→ phi

$m_a$ masse d’air

$m_g$ masse de fuel