Abstract: Provided is a device and method for containing hazardous waste, including a container for hazardous waste, comprising a hangable bag having an interior volume, the hangable bag being constructed at least in part of collapsible material and configured to be lifted and configured to support an interior bladder, and the interior volume being variable; and an interior bladder, the interior bladder connectable with a through port to a lid.

Abstract: Provided is a device and method for containing hazardous waste, including a container for hazardous waste, comprising a hangable bag having an interior volume, the hangable bag being constructed at least in part of collapsible material and configured to be lifted and configured to support an interior bladder, and the interior volume being variable; and an interior bladder, the interior bladder connectable with a through port to a lid.

Abstract: A method for controlling an operation of a vapor compression system (VCS) determines values of measured outputs of the operation of the VCS that include performance and constrained outputs. The method determines states of the VCS using an estimator model of the VCS defining a relationship between the states of the VCS, control inputs and controlled outputs, such that a difference between outputs predicted using the estimator model and the measured outputs asymptotically approaches zero. The states of the VCS include a main state representing the operation of the VCS and an auxiliary state representing the effect of unknown disturbances on each measured output of the VCS. The control inputs for controlling the operation of the VCS are determined using a prediction model, such that the constrained output satisfies the constraints, and a difference between the performance output and the value of the setpoint asymptotically approaches zero.

Abstract: A method controls discharge temperature of a compressor of a vapor compression system. Using a mapping among discharge temperature, speed of the compressor, and outdoor air temperature, the method determines a desired discharge temperature for a new value of the speed of the compressor. The compressor is abruptly controlled to change the current speed of the compressor to the new value. A valve of the vapor compression system is smoothly controlled, such that the discharge temperature is transitioned to the desired discharge temperature according to a function of time representing a low pass filter with a time constant proportional to the thermal time constant of the compressor.

Abstract: A method for controlling an operation of a vapor compression system (VCS) determines values of measured outputs of the operation of the VCS that include performance and constrained outputs. The method determines states of the VCS using an estimator model of the VCS defining a relationship between the states of the VCS, control inputs and controlled outputs, such that a difference between outputs predicted using the estimator model and the measured outputs asymptotically approaches zero. The states of the VCS include a main state representing the operation of the VCS and an auxiliary state representing the effect of unknown disturbances on each measured output of the VCS. The control inputs for controlling the operation of the VCS are determined using a prediction model, such that the constrained output satisfies the constraints, and a difference between the performance output and the value of the setpoint asymptotically approaches zero.

Abstract: A control system controls adaptively an operation of a vapor compression system. The control system includes a memory for storing a mapping relationship between control inputs of the vapor compression system, and a processor for executing a supervisory controller and an optimization controller. The supervisory controller controls the operation of the vapor compression system using a set of control inputs selected according to the mapping relationship. The optimization controller modifies the mapping relationship in response to the operation of the vapor compression system.

Abstract: A method controls a vapor compression system including a variable speed compressor. A desired discharge temperature of the compressor is determined using a mapping between values of the discharge temperature of the compressor and values of speed of the compressor and outdoor air temperature. A transition function for transitioning a current discharge temperature to the desired discharge temperature is determined, such that the transition function is continuous and a rate of change of the transition function is limited. Next, a valve of the vapor compression system is controlled such that the discharge temperature is transitioned to the desired discharge temperature based on the transition function.