def METHOD_NAME(b, t):
    q_in = pyunits.convert(
        b.properties_in[t].flow_vol, to_units=pyunits.m**3 / pyunits.hour
    )
    return b.electricity_intensity[t] == pyunits.convert(
        b.electricity_intensity_parameter * b.air_flow_rate[t] / q_in,
        to_units=pyunits.kWh / pyunits.m**3,
    )