A humid air forming device, which cools an object to be measured to a predetermined temperature, and which sprays humid air having a predetermined temperature to the cooled object to be measured, thereby forming moisture particles on the surface of the object to be measured, and a measurement system including the same. The humid air forming device includes a cooling unit that cools the object to be measured to a first temperature or lower; and a humid air supply unit that forms humid air having a second temperature, which is higher than the first temperature, and spraying the humid air toward the surface of the cooled object to be measured, thereby forming moisture particles on the surface of the cooled object to be measured.

Methods and systems are provided for a mixer. In one example, a system may include a mixer arranged in a passage and configured to mix two dissimilar types of gases upstream of a device.

A blender for blending viscous material and additive material by vortex action includes an upper section and a lower section. The upper section has a receiving portion, a viscous material inlet that is in fluid communication with the receiving portion, and an additive inlet that is in fluid communication with the receiving portion. The lower section is attached to and disposed below the upper section, said includes a blending portion that is in fluid communication with the receiving portion of the upper section. The blending portion is shaped so as to facilitate the blending of the additive material entering the receiving portion through the additive inlet with the viscous material entering the receiving portion through the viscous material inlet. The blender includes an outlet for blended material that is in fluid communication with the blending portion of the lower section. A method of blending additive materials with asphalt cement employs a blender having no moving parts that is adapted to blend asphalt cement and additive materials by vortex action.

The present invention provides an improved portable steam humidifier. According to a preferred embodiment, the improved humidifier of the present invention preferably includes a spiral mixing chamber connected to a steam chamber, a spiral outlet duct, an inlet duct and an outlet grill. According to a preferred embodiment, the inlet duct preferably receives air from an inlet fan and directs the air into the spiral mixing chamber where the air is mixed with water vapor from the steam chamber. According to a further preferred embodiment, the air is further directed from the spiral mixing chamber through the spiral outlet duct out through the outlet grill.

Embodiments are directed to systems and methods for reducing the infrared signature of a vehicle, specifically to the use of mixed flow or centrifugal blowers to reduce the amount of infrared radiation being emitted from the engine exhaust. A blower and mixer are used to cool the exhaust gas from an aircraft engine. The blower and mixer use a tertiary exhaust duct to swirl cool air from an engine particle separator (EPS) and/or oil cooler, for example, with the hot engine exhaust gas. Existing blowers in the EPS or oil cooler may be used to motivate air flow so that a unique or dedicated blower is not required. In addition to reducing exposure to hostile forces, other benefits of cooling the exhaust gas include greatly reduced ground-impingement temperatures and safer personnel working zones because the hot plume is mostly eliminated.

A vacuum pumping system which comprises a plurality of vacuum pumping arrangements for evacuating a flammable gas stream and exhausting the gas stream through an exhaust outlet. A housing houses the vacuum pumping arrangements and forms an air flow duct for an air flow for mixing with the exhaust gas stream output from the exhaust outlet in a mixing region in the housing. An airflow generator generates an air flow through the air flow duct to cause mixing of air with the flammable gas stream to a percentage of the flammable gas in the air flow lower than the lower flammability limit of the flammable gas. An airflow sensor senses the flow of air for determining if the air flow is sufficient to dilute the flammable gas to lower than said percentage.

The present invention is concerned with improved swirl burners, particularly, but not limited to, swirl burners used in fuel cell systems.

A mixer is provided for mixing exhaust gas (A) flowing in an exhaust gas-carrying duct (14) of an internal combustion engine with reactant injected into the exhaust gas-carrying duct (14). The mixer includes a mixing body (22) with a reactant-receiving duct (34), an exhaust gas inlet opening device (54) with a plurality of exhaust gas inlet openings (56) leading to the reactant-receiving duct (34), and at least one releasing duct (40, 42) leading away from the reactant-receiving duct (34) with a releasing duct opening (48, 50) for releasing a reactant/exhaust gas mixture from the mixer body (22). An electrically energizable heater (68) is provided at the mixer body (22).

Embodiments of the subject invention are directed to methods and apparatus for inducing mixing in a fluid using one or more plasma actuators. In an embodiment, a pair of electrodes is positioned near a fluid and a voltage potential is applied across the pair of electrodes such that a plasma discharge is produced in the fluid. In an embodiment, the plasma discharge creates turbulence in the fluid thereby mixing the fluid. In an embodiment, flow structures, such as vortices are generated in the fluid. In an embodiment, the fluid is mixed in three dimensions. In an embodiment, a plurality of fluids are mixed. In an embodiment, solids are dispersed in at least one fluid. In an embodiment, heat or other properties are dispersed within at least one fluid. In an embodiment, at least one of the pair of electrodes has a serpentine shape.

A flue ozone distributor applied in a low-temperature oxidation denitrification technology and an arrangement manner thereof is disclosed. The flue ozone distributor comprises a distribution main pipe, multiple distribution branch pipes, Venturi distributors and delta wings. The distribution branch pipes are led out from the distribution main pipe as parallel branches. The Venturi distributors are arranged with an equal space on the distribution branch pipes. The delta wings are arranged on one diffusion segment side of the Venturi distributors. The flue ozone distributor is arranged in the flue. The technology is used in the field of denitrification for flue gas of an industrial boiler/kiln by a low-temperature ozone oxidation method. The ozone-injecting direction is consistent with a flow direction of the flue gas. A soot deposit congestion problem does not exist. A turbulent flow behavior of the flue gas and ozone is strengthened. The oxidation efficiency is improved.