human
I am working on the file "AntSearch for CHPswarm.ipynb".
The first task is:
The above expression was obtained by solving the equation for $P_{th}$ and $E_{th}$ for $\ln{P_{el}}$. The resulting equation is thus of the form $\ln{x} = f(x)$, where $f$ is a rational function in $x$. This can only be solved numerically. The following function uses scipy.optimize.brentq to solve the aforementioned equation (numpy.vectorize as the input is going to be the energy demand vector E_therm).
Can you write Python program for it?
assistant
#Here is the Python program you requested.

def eta_el(P_el):
    return 2.43e-2*np.log(P_el) + 2.421e-1

def design_CHP(E_th, t_op=200*3600.):
    
    P_th_avg = E_th/t_op
    
    def f(P_el):
        P_th = P_el * (1/eta_el(P_el) - 1) * 0.9
        return P_th - P_th_avg
    
    return scipy.optimize.brentq(f, 1, 10e6)

design_CHP = np.vectorize(design_CHP)