928 results about "Ambient humidity" patented technology

A method and system may be provided to perform a process for controlling NO_x emissions of an target engine. In one embodiment of the invention, the process may include determining predicted NO_x values based on a model reflecting a predetermined relationship between control parameters and NO_x emissions, wherein the control parameters include ambient humidity, manifold pressure, manifold temperature, fuel rate, and engine speed associated with the engine. Further, the process may include adjusting the model based on a determination of whether the predicted NO_x values meet a predetermined criteria associated with actual NO_x values. The adjusted model may be stored in a memory associated with the engine whereby NO_x emissions exhausted from the engine may be reduced based on virtual NO_x emission values determined from the adjusted model.

A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

The invention relates to an online monitoring system for high-voltage cables, which comprises a sensor, a data collection unit, a power supply device, and a network server. The sensor is arranged at the joint of a high-voltage cable and is used for collecting data such as the shield circulating current of the high-voltage cable joint, the core current, the surface temperature of the cable, and the ambient humidity and temperature and transmitting the data to the data collection unit. The data collection unit is arranged nearby the high-voltage cable joint and is used for collecting the data transmitted from the sensor and transmitting the date to the network server via a wireless network. The power supply device acquires power from the high-voltage cable and provides power to the data collection unit. The network server is installed in a control room and is used for receiving the data transmitted from the data collection unit in order to determine whether the power cable is in safe operation condition via special data analysis, thereby serving the purpose of helping maintenance personnel monitor the operation condition of the power cable at any time, and preventing the electrical faults from happening. In case that faults occur with the cable, the online monitoring system can send alarms promptly and locate fault points, thereby providing assistance for cable repair.

A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

The invention provides a condensation prevention method for an air conditioner, a controller, a system and the air conditioner, and relates to the technical field of air conditioners. The condensation prevention method for the air conditioner comprises the steps that whether an air deflector reaches the condensation critical condition or not is judged according to at least one of the temperature of the air deflector and the set refrigeration temperature, the environment temperature and the ambient humidity, wherein the condensation critical condition comprises the critical temperature difference when condensation occurs under each humidity condition; and if the air deflector reaches the condensation critical condition, the condensation prevention mode is started. According to the method, whether the condition for generating condensation is reached or not can be judged according to the ambient humidity, the temperature, the temperature of the air deflector and the set refrigeration temperature, generation of the condensation can be determined in time, the air conditioner is adjusted to enter the condensation prevention mode under the condition that the condensation is determined to be generated, and therefore the generation of the condensation on the air deflector of an indoor unit can be reduced.

A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

An intelligently controlled catalytic converter automatically monitors various operating parameters, such as water jacket temperature, catalytic input temperature, catalytic converter output temperature, oxygen level, ambient temperature, ambient humidity and/or ambient barometric air pressure, of a biofuel-fired device and automatically controls dampers, blowers and electric heaters in the device.

A method of sterilisation and decontamination comprises the steps of producing a humidified environment having a relative humidity which is higher than ambient humidity; discharging ozone into the humidified environment; and then introducing an aromatic hydrocarbon into the humidified environment to preferentially react with the discharged ozone to form hydroxyl radicals. Apparatus is also provided for use with the method.

An air conditioner and the method thereof are provided. The air conditioner includes a compressor, a condenser, a condensation fan, an expansion valve, an evaporator, an evaporation fan, an ambient temperature sensor, an ambient humidity sensor and a controller. The controller can obtain a target temperature according to the ambient temperature measured by the ambient temperature sensor and the relative humidity measured by the ambient humidity sensor, thereby adjusting the temperature of the secondary refrigerant in the evaporator according to the target temperature, and further reducing the phase change of water molecules in air.

An environmental control system for a vehicle, in particular for predicting internal misting of a vehicle windscreen, the system comprising a windscreen temperature sensor assembly 28, an ambient humidity sensor assembly 32 and a second temperature sensor assembly 30 for sensing the temperature of the humidity sensor assembly 32. The windscreen temperature sensor assembly 28 is mounted on an interior rearview mirror support bracket 10 for engagement with the interior surface 18 of the windscreen, and the second temperature and humidity sensor assemblies are mounted within a rearview mirror housing 12 mounted to the mirror support bracket 10.

Methods and systems are provided for estimating a PCV flow to an engine based on the output of an exhaust gas oxygen sensor. During DFSO conditions, a reference voltage of the sensor is modulated initially with an intake throttle open and then with the intake throttle closed. PCV flow leaking past the piston valves in an aging engine, as well as an ambient humidity estimate, are inferred based on the outputs of the sensor during the modulating with the intake throttle open and closed.

The invention relates to a defrosting method of an air conditioner. The defrosting method includes the following steps that firstly, environment temperature, environment humidity and fin temperature are acquired; secondly, dew-point temperature corresponding to the environment temperature and the environment humidity is calculated, and whether fins meet the defrosting condition or not is judged according to the relation between the fin temperature and the dew-point temperature, if yes, the third step is executed, if not, the first step is executed again; thirdly, suction pressure is acquired, evaporation temperature corresponding to the suction pressure and the change rate of the evaporation temperature are calculated, if the change rate is larger than a preset change rate, defrosting is started, and if the change rate is not larger than the preset change rate, the third step continues to be executed. The defrosting method has the advantages that the change rate of the evaporation temperature of a heat exchanger on the air side in the heating process is used as the condition for judging whether defrosting is conducted or not, false defrosting of a unit is avoided, defrosting efficiency is improved, and heating capacity of the air cooling heat pump unit is exerted.

The invention relates to a cable joint wire temperature prediction method based on an RBF neural network. The cable joint wire temperature prediction method based on the RBF neural network mainly includes the first step of collection of sample data, wherein factors such as environment humidity, environment temperature, sheath temperature, joint insulation temperature, contact temperature and various surface temperatures which are related with the cable joint wire temperature are measured in real time; the second step of network training, wherein the collected data in the step (1) are preprocessed, training data and prediction data are divided, various parameters are set, a network is built, and the data are predicted finally. As the neural network technology is applied to predication of the cable joint wire temperature, the cable joint wire temperature can be well monitored in a real-time and on-line mode, and faults can be well analyzed.

The pre-cooler includes one or more cells which are oriented about an air stream to be cooled. A housing defines a perimeter of the cell with an inlet and outlet for air passing therethrough. Water outlet nozzles within the housing are preferably supported upon bars which orient the nozzles facing in a direction counter to flow of air through the housing. Each nozzle is coupled to a separate stage with multiple stages of nozzles coupled to separate valves. A controller opens or closes different valves. The controller measures ambient humidity and temperature conditions as well as air flow rates to calculate the amount of water to be added to the air and then opens appropriate numbers of stages of valves so that an appropriate number of nozzles spray water into the air to saturate the air. Flow rate control is thus provided without pressure variations, for optimal nozzle performance.

Various methods and system are described for determining ambient humidity via an exhaust gas sensor disposed in an exhaust system of a variable displacement engine. A reference voltage of a sensor coupled to an inactive engine bank is modulated between a first and second voltage to estimate ambient humidity. Concurrently, a reference voltage of a sensor coupled to an active engine bank is modulated between the first and second voltage, or at the first voltage, to estimate fuel alcohol content, or exhaust air-fuel ratio, respectively.

The invention relates to a sealed bearing comprehensive performance simulation testing machine and belongs to the field of bearing performance testing. The sealed bearing comprehensive performance simulation testing machine comprises a bearing test unit, a driving unit, a loading unit, an environment simulation system and a control system. The bearing test unit is arranged in the environment box of the environment simulation system, is arranged on the same plate with the driving unit, and is connected with the loading unit. The driving unit is arranged on the left side of the environment box. The loading unit comprises a radial loading mechanism and an axial loading mechanism. The environment simulation system comprises the environment box, a high-temperature simulation unit, a low-temperature simulation unit, a humidity simulation unit and a dust simulation unit. The control system is connected with the driving unit, the loading unit, and the environment simulation system, and controls test rotating speed, test load, test ambient temperature, and test ambient humidity, and test environment dust concentration. The sealed bearing comprehensive performance simulation testing machine is reasonable in structure, complete in simulated working conditions, good in test results, and easy to operate, and satisfies the evaluation demands of sealed bearing comprehensive performance.

An environment sensor (11) for measuring the temperature and humidity can be miniaturized and can respond at high speed. The environment sensor (11) includes a temperature sensing portion (111) having a temperature-sensitive material (1) made of a metal oxide, and a humidity-sensing portion (112) which is formed on the same substrate as the temperature sensing portion (111) and measures the ambient humidity by using a change in electrical characteristics. At least one of a pair of electrodes (2, 3) of the temperature sensor (111) is integrated with an electrode of the humidity-sensing portion (112).