A thermostat mixing valve for a water temperature control system may comprise a mixing chamber defining a valve outlet, a first proportional solenoid valve fluidly coupled to the mixing chamber, and a second proportional solenoid valve fluidly coupled to the mixing chamber. Each of the first proportional solenoid valve and the second proportional solenoid valve may include a housing assembly defining a fluid inlet and a fluid outlet, a plunger assembly configured to translate relative to the housing assembly, and a coil assembly configured to generate a magnetic field that translates the plunger assembly.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

A system and method for active disturbance rejection based thermal control is configured to receive, at a first active disturbance rejection thermal control (ADRC) controller, a first temperature measurement from a first thermal zone. The ADRC controller generates a first output control signal for controlling a first cooling element, wherein the first output control signal is generated according a first estimated temperature and a first estimated disturbance calculated by a first extended state observer (ESO) of the first ADRC controller.

An arrangement for monitoring an aseptic manufacturing process includes product condition sensors capable of making closely spaced measurements of a product condition such as temperature or humidity. The measurements are made using closely spaced sensors arranged in a linear array on a single probe, which may be used to take measurements at multiple levels within the product. Data from the sensors is transmitted to a data collection point via short range wireless digital communications. The sensors may be used to measure temperature and humidity at a single point. For example, when the sensors are used in pharmaceutical freeze drying, the location of a sublimation front may be calculated for each vial, and the freeze drying process may be controlled using the data.

Various embodiments include a method of controlling heat exchange via a terminal unit of a terminal-side circuit of a system for HVAC with a source-side circuit coupled to the terminal-side circuit comprising: reading a terminal-side supply temperature signal; producing a supply temperature from the terminal-side supply temperature signal; estimating a percentage demand signal as a function of the supply temperature; estimating an actual demand for power by rescaling a value of maximum available power by the percentage demand signal; comparing the actual demand for power to the value of maximum available power; and if the actual demand for power exceeds the value of maximum available power: producing a first flow control signal based on the value of maximum available power; and controlling a flow of a fluid through the source-side circuit based on the first flow control signal.

A control valve (2) for regulating a fluid flow in an HVAC comprises a valve body (21) and a temperature sensor (25) configured to measure the temperature of a fluid (24) flowing within the control valve (2). The temperature sensor (25) is arranged such that the temperature sensor (25) is essentially thermally decoupled from the valve body (21).

In one embodiment, a remote monitoring system for a fluid applicator system is disclosed. The fluid applicator system is disposed to heat and pump spray fluid, and to transmit reports including sensed temperatures, pressures, and other operational parameters of the fluid applicator system via a wireless network. The remote monitoring system comprises a data storage server, and an end user interface. The data storage server is configured to receive and archive the reports. The end user interface is configured to provide a graphical user interface based on the reports. The graphical user interface illustrates a status of the fluid handling system, sensed and commanded temperatures of the fluid handling system, sensed and commanded pressures of the fluid handling system, and usage statistics of the fluid handling system.

A method of controlling a heating, ventilation, and air-conditioning, HVAC, system. The method includes: controlling indoor environmental conditions using the HVAC system, detecting a load of the HVAC system, inputting detected indoor environmental conditions and detected outdoor environmental conditions into a load prediction model to generate a predicted load, and training the load prediction model to reduce a difference between the predicted load and the detected load of the HVAC system; determining requested indoor environmental conditions associated with a future time period; determining predicted outdoor environmental conditions within the future time period using a weather forecast; inputting the requested indoor environmental conditions and the predicted outdoor environmental conditions into the trained load prediction model to determine a predicted load for the future time period; controlling the HVAC system to reduce a load of the HVAC system within the future time period using the determined predicted load.

A power supply control apparatus controls a temperature of a device having a cooling mechanism and a heat generating component. The power supply control apparatus includes a nonvolatile storage unit that stores information indicating a specific characteristic including a thermal resistance and a thermal capacity of the device for each current of the heat generating component, a current measurement unit configured to measure a current flowing through the heat generating component, a temperature measuring unit configured to measure a current temperature of the heat generating component, and a control unit configured to perform cooling control on the device. The control unit estimates a temperature rise value after a certain delay time based on the current, the temperature, and the information on the specific characteristic, and performs the cooling control on the device based on an estimated temperature after the delay time.

According to one embodiment, there is provided a temperature abnormality detection circuit provided in a temperature control device includes a target temperature determination circuit, a difference arithmetic circuit, a temperature abnormality determination circuit, and a storage circuit. The temperature abnormality detection circuit is configured to determine the presence or absence of temperature abnormality by a response situation of a detected temperature by a temperature sensor, calculate a current temperature difference from the detected temperature acquired by the temperature sensor if it is determined that there is a temperature abnormality and an estimated WAE temperature value, and determine whether the temperature sensor is abnormal or the control circuit side is abnormal based on the result of comparison between the temperature difference and a preset threshold value.