A control system for an operable system such as a flow control system or temperature control system. The system operates in a control loop to regularly update a model with respect at least one optimizable input variable based on the detected variables. The model provides prediction of use of the input variables in all possible operation points or paths of the system variables which achieve an output setpoint. In some example embodiments, the control loop is performed during initial setup and subsequent operation of the one or more operable elements in the operable system. The control system is self-learning in that at least some of the initial and subsequent parameters of the system are determined automatically during runtime.

An embodiment of a system with a minute measure of pulsatility in a flow of a fluid is described that comprises a first pump configured to flow the fluid to a junction at a first flow rate that comprises a measure of pulsatility; and a second pump configured to flow a portion of the fluid from the junction at a second flow rate that is less than the first flow rate to produce a flow of the fluid at a third flow rate from the junction with a minute measure of pulsatility.

Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as pods, pump pods, or pod pumps) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfectants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).

The present invention relates to an automated system for managing a facility having equipment operable using compressed air, water and steam supply, which includes an electronic control device having a control panel, a human machine interface and a programmable logic controller for controlling operations of the equipment based on real-time and preprogrammed inputs. The automated system further includes a steam supply control means in communication with the electronic control device to control steam supply, a compressed air supply control means in communication with the electronic control device to control a compressed air supply and a number of monitoring means to provide feedback information to the electronic control device. The electronic control device performs automated, scheduled operations by controlling electric and pneumatic values of the equipment based on analysis of inputs provided to the electronic control device and feedback received from the monitoring means.

Methods for simultaneously determining the concentrations of transition metal compounds in solutions containing two or more transition metal compounds are described. Polymerization reactor systems providing real-time monitoring and control of the concentrations of the transition metal components of a multicomponent catalyst system are disclosed, as well as methods for operating such polymerization reactor systems.

Mass flow verification systems and apparatus verify mass flow rates of mass flow controllers (MFCs) based on pressure decay principles. Embodiments include a location for coupling a calibrated gas flow standard or a MFC to be tested in a line to receive a gas flow from a gas supply; a control volume serially coupled to the location in the line to receive the gas flow; a flow restrictor serially coupled to the control volume; a pump serially coupled to the flow restrictor; and a controller adapted to allow the gas supply to flow gas through the mass flow control verification system to achieve a stable pressure in the control volume, terminate the gas flow from the gas supply, and measure a rate of pressure decay in the control volume over time. Numerous additional aspects are disclosed.

The present disclosure relates to a heating, ventilating, and air conditioning (HVAC) unit that includes a housing that defines an airflow path and a sensor disposed within the airflow path configured to collect data indicative of airflow. The HVAC unit also includes a controller configured to receive data from the sensor, determine an amount of airflow based on the data, and display the amount of airflow via a display.

An arrangement for adding a first fluid component into a flow system, said arrangement comprising: a first pump provided in a first component adding fluid line which is connecting a first system fluid line of the flow system with a first fluid component source comprising the first fluid component to be added into the flow system; and a second pump provided in a second component adding fluid line connected in parallel with the first component adding fluid line, said second component adding fluid line connecting the first system fluid line of the flow system with a first fluid component source comprising the first fluid component to be added into the flow system.

A mass flow control apparatus having a monolithic base. The monolithic base has a gas inlet, a gas outlet, a first flow component mounting region, a second flow component mounting region, and a third flow component mounting region. The first flow component mounting region has a first inlet port and a first outlet port, the first inlet port being fluidly coupled to the gas inlet of the monolithic base. The second flow component mounting region has a second inlet port, a second outlet port, and a first auxiliary port.

A control unit of a fuel cell system includes a valve control unit configured such that, when it is determined that an exhaust valve is stuck open in a quick warming-up operation, the valve control unit sets at least one of an operable opening area which is an opening area capable of being changed by control and a rate of opening change which is an opening changeable frequency at which an opening is changeable per unit time, for at least one of a pressure adjusting valve and a flow division valve, such that a flow rate of a cathode gas supplied to a fuel cell is in an allowable range of a requested supply flow rate required for the quick warming-up operation.