A refrigeration cycle is executed with R$-134$a under the saturation dome $($on the saturation curve or under the curve$)$ between the pressure limits of $1\mathrm{.}6$ MPa and $0\mathrm{.}16$ MPa. If the power consumption of the refrigerator is $3\mathrm{.}4$ kW$,$ what's the maximum rate of heat removal $($in kJ$/$s$)$ from the cooled space of this refrigerator $?$