explicit Chiller(const std::string& name, double air_mass_kg, double specific_heat_j_per_kg_per_c, double alpha,
double cooling_efficiency, double initial_temp_c, double goal_temp_c, double max_power_w);
explicit Chiller(const std::string& name, double air_mass_kg, double specific_heat_j_per_kg_per_c, double alpha,
double cooling_efficiency, double initial_temp_c, double goal_temp_c, double max_power_w);